:  Jun 21, 2008



Overview

Common rail diesel

The 2.7L fuel injection system is a common-rail design, running at the high-pressures of up to 1,600 bar (23,206 lb/in²) typical of such systems.

The fuel volume control valve (FVCV) regulates the amount of fuel supplied to the high-pressure side of the fuel injection pump, while the fuel pressure control valve (FPCV) regulates the pressure.

The high-pressure fuel is delivered to the fuel rail where it is stored, ready for use by the fuel injectors.

The fuel injectors are Piezo type, and are controlled by the engine control module (ECM) from inputs from the engine management sensors.

The fuel injectors operate in stages, giving a pilot injection before the main injection to reduce detonation noise and help improve the efficiency of the engine.

For additional information, refer to the workshop manual section 303-04 - Fuel Charging and Controls.

Inspection and Verification

  : Do NOT carry out any work on the fuel system with the engine running. The fuel pressure within the system can be as high as 1600 bar (23,206 lb/in²). Failure to follow this instruction may result in personal injury.

  : Eye protection must be worn at all times when working on or near any fuel related components. Failure to follow this instruction may result in personal injury.

  : This procedure involves fuel handling. Be prepared for fuel spillage at all times and always observe fuel handling precautions. Failure to follow this instruction may result in personal injury.

  : After carrying out repairs, the fuel system must be checked visually for leaks. This should be done after the engine has been run, but with the engine switched OFF. Failure to follow this instruction may result in personal injury.

  : If taken internally, DO NOT induce vomiting. Seek immediate medical attention. Failure to follow this instruction may result in personal injury.

  : If fuel contacts the eyes, flush the eyes with cold water or eyewash solution and seek medical attention. Failure to follow this instruction may result in personal injury.

  : Wash hands thoroughly after handling, as prolonged contact may cause irritation. Should irritation develop, seek medical attention. Failure to follow this instruction may result in personal injury.

  : Before disconnecting any part of the system, it is imperative that all dust, dirt and debris is removed from around components to prevent ingress of foreign matter into the fuel system. Failure to follow this instruction may result in damage to the vehicle.

  : The fuel pipes between the injectors and the rail must be discarded after each use, and new pipes installed. Failure to follow this instruction may result in damage to the vehicle.

  : It is essential that absolute cleanliness is observed when working with these components. Always install blanking plugs to any open orifices or lines. Failure to follow this instruction may result in damage to the vehicle.

  : Make sure that the workshop area in which the vehicle is being worked on is as clean and dust-free as possible. Areas in which work on clutches, brakes or where welding or machining are carried out are not suitable in view of the risk of contamination to the fuel system. Failure to follow this instruction may result in damage to the vehicle.

  : Make sure that any protective clothing worn is clean and made from lint-free non-flocking material. Failure to follow this instruction may result in damage to the vehicle.

  : Make sure that any protective gloves worn are new and are of the non-powdered latex type. Failure to follow this instruction may result in damage to the vehicle.

  : Make sure that clean, non-plated tools are used. Clean tools using a new brush that will not lose it's bristles and fresh cleaning fluid prior to starting work on the vehicle. Failure to follow this instruction may result in damage to the vehicle.

  : Use a steel-topped work bench and cover it with clean, lint-free, non-flocking material. Failure to follow this instruction may result in damage to the vehicle.

:
  When performing voltage or resistance tests, always use a digital multimeter (DMM) accurate to 3 decimal places, and with an up-to-date calibration certificate. When testing resistance, always take the resistance of the DMM leads into account.

. Verify the customer concern.

. Visually inspect for obvious mechanical or electrical faults.

Mechanical Electrical
  • Fuel level
  • Contaminated fuel
  • Fuel supply line(s)
  • Fuel return line(s)
  • High-pressure fuel supply line(s)
  • Fuel tank filler pipe
  • Fuel leak(s)
  • Fuel tank
  • Fuel filler cap
  • Fuel filter
  • Push connect fittings
  • Fuel rail
  • Fuel injection pump
  • Exhaust gas recirculation (EGR) system
  • Glow plug indicator
  • Inertia fuel shutoff (IFS) switch
  • Fuel pump module
  • Sensor(s)
  • Engine control module (ECM)
  • Fuel volume control valve (FVCV)
  • Fuel pressure control valve (FPCV)
  • Fuel rail pressure (FRP) sensor
  • Fuel temperature sensor
  • Fuel injector(s)
  • EGR system

. If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.

. Use the approved diagnostic system or a scan tool to retrieve any diagnostic trouble codes (DTCs) before moving onto the symptom chart or DTC index.
  Make sure that all DTCs are cleared following rectification.
Make sure that all DTCs are cleared following rectification.

Symptom Chart

Symptom Possible causes Action
Engine cranks, but does not start
  • IFS switch
  • Low/Contaminated fuel
  • Air ingress
  • Low pressure fuel system fault
  • Fuel pump module fault
  • Blocked fuel filter
  • FVCV blocked/contaminated
  • FPCV blocked/contaminated
  • Fuel injection pump failure
  • Crankshaft position (CKP) sensor
  • ECM fault
Check that the inertia switch has not tripped. Check the fuel level/condition. Check the low pressure fuel system for leaks/damage. Check the fuel pump module operation. Check the fuel filter, FVCV and FPCV for blockages or contamination. Check the fuel injection pump. For CKP sensor circuit tests, refer to the relevant section of the workshop manual. Refer to the warranty policy and procedures manual if a module is suspect.
Difficult to start
  • Glow plug system fault (very cold conditions)
  • Low/Contaminated fuel
  • Fuel pump module fault
  • Air ingress
  • Low pressure fuel system fault
  • Blocked fuel filter
  • FVCV blocked/contaminated
  • FPCV blocked/contaminated
  • Low pressure circuit fault
  • EGR valve(s) fault
Check the glow plug circuits. Check the fuel level/condition. Check the fuel pump module operation, check the low pressure fuel system for leaks/damage. Check the fuel filter, FVCV and FPCV for blockages or contamination. For EGR valve tests, refer to the relevant section of the workshop manual.
Rough idle
  • Air ingress
  • Low/Contaminated fuel
  • Low pressure fuel system fault
  • Blocked fuel filter
  • FVCV blocked/contaminated
  • FPCV blocked/contaminated
  • EGR valve(s) fault
Check the intake air system for leaks. Check the fuel level/condition. Check the low pressure fuel system for leaks/damage. Check the fuel filter, FVCV and FPCV for blockages or contamination. For EGR valve tests, refer to the relevant section of the workshop manual.
Lack of power when accelerating
  • Intake air system fault
  • Restricted exhaust system
  • Low fuel pressure
  • EGR valve(s) fault
  • Variable geometry turbocharger (VGT) actuator fault
Check the intake air system. Check for a blockage/restriction in the exhaust system, install new components as necessary. Check the fuel pressure. For EGR valve tests and VGT actuator tests, refer to the relevant section of the workshop manual.
Engine stops/stalls
  • Air ingress
  • Low/Contaminated fuel
  • Low pressure fuel system fault
  • High pressure fuel leak
  • FVCV blocked/contaminated
  • FPCV blocked/contaminated
  • EGR valve(s) fault
Check the intake air system for leaks. Check the fuel level/condition. Check the low pressure fuel system for leaks/damage. Check the FVCV and FPCV for blockages or contamination. Check the high pressure fuel system for leaks. For EGR valve tests, refer to the relevant section of the workshop manual.
Engine judders
  • Low/Contaminated fuel
  • Air ingress
  • Low pressure fuel system fault
  • Fuel metering valve blocked/contaminated
  • FVCV blocked/contaminated
  • FPCV blocked/contaminated
  • High pressure fuel leak
  • Fuel injection pump fault
Check the fuel level/condition. Check the low pressure fuel system for leaks/damage. Check the FVCV and FPCV for blockages or contamination. Check the high pressure fuel system for leaks. Check the fuel injection pump. Refer to the relevant section of the workshop manual.
Excessive fuel consumption
  • Low pressure fuel system fault
  • FVCV blocked/contaminated
  • FPCV blocked/contaminated
  • Fuel temperature sensor leak
  • High pressure fuel leak
  • Injector(s) failure
  • EGR valve(s) fault
Check the low pressure fuel system for leaks/damage. Check the FVCV and FPCV for blockages or contamination. Check the fuel temperature sensor, fuel injection pump, etc for leaks. Check for injector DTCs. For EGR valve tests, refer to the relevant section of the workshop manual.

DTC index

:
  Generic scan tools may not read the codes listed, or may read only 5-digit codes. Match the 5 digits from the scan tool to the first 5 digits of the 7-digit code listed to identify the fault (the last 2 digits give extra information read by the manufacturer-approved diagnostic system).

:
  For a full list of ECM DTCs, refer to workshop manual section 303-14 - Electronic Engine Controls.

Power latch

There are references to "power latch" within the DTC index. This is where the module must be reset by means of a complete power down and power up.

DTC Condition Possible causes Action
P000100 Fuel Volume Regulator Control Circuit / Open
  • Fuel volume control valve (VCV) circuit high resistance
  • VCV circuit open circuit
  • VCV failure
:
  An open circuit will prevent the engine from running.

Refer to the electrical guides and check the fuel volume control valve and circuits. Check the resistance of the valve and install a new high pressure fuel pump if the resistance is not between 1.5 and 15 ohms (the fuel volume control valve cannot be serviced separately). Clear the DTCs and test for normal operation. Refer to the warranty policy and procedures manual if a HPP is suspect.
P000200 Fuel Volume Regulator Control Circuit Range/Performance
  • Fuel volume control valve (VCV) circuit high resistance
  • VCV circuit short circuit to ground
  • VCV circuit short circuit to power
  • VCV failure
:
  An open circuit will prevent the engine from running.

Refer to the electrical guides and check the fuel volume control valve and circuits. Check the resistance of the valve and install a new high pressure fuel pump if the resistance is not between 1.5 and 15 ohms (the fuel volume control valve cannot be serviced separately). Clear the DTCs and test for normal operation. Refer to the warranty policy and procedures manual if a HPP is suspect.
P000300 Fuel Volume Regulator Control Low
  • Fuel volume control valve (VCV) circuit high resistance
  • VCV circuit short circuit to ground
  • VCV failure
  • ECM failure
:
  An open circuit will prevent the engine from running.

Refer to the electrical guides and check the fuel volume control valve and circuits. Check the resistance of the valve and install a new high pressure fuel pump if the resistance is not between 1.5 and 15 ohms (the fuel volume control valve cannot be serviced separately). Clear the DTCs and test for normal operation. Refer to the warranty policy and procedures manual if a HPP is suspect.
P000400 Fuel Volume Regulator Control Circuit High
  • Fuel volume control valve (VCV) circuit short circuit to power
  • VCV failure
  • ECM failure
Refer to the electrical guides and check the fuel volume control valve and circuits. Check the resistance of the valve and install a new high pressure fuel pump if the resistance is not between 1.5 and 15 ohms (the fuel volume control valve cannot be serviced separately). Clear the DTCs and test for normal operation. Refer to the warranty policy and procedures manual if a HPP is suspect.
P008700 Fuel rail/system pressure too low
  • Fuel rail pressure (FRP) sensor disconnected
  • FRP sensor to ECM sensing circuit short circuit to ground
  • FRP sensor supply circuit high resistance
  • FRP sensor failure
  • Fuel line leak
  • Restricted fuel line
  • Fuel pump module circuit high resistance
  • Fuel pump module circuit short circuit to ground
  • Fuel pump module failure
  • Volume control valve fault
  • Pressure control valve fault
Refer to the electrical guides and check the FRP sensor circuits. For FRP sensor tests, refer to the relevant workshop manual section. Check the low pressure fuel lines for damage or restrictions. Check the fuel pressure. Check the low pressure fuel pump module circuits and operation. Check for fuel rail and high pressure fuel line leaks. Check for VCV and PCV DTCs and rectify as necessary.
P008800 Fuel rail/system pressure too high
  • Fuel rail pressure (FRP) sensor to ECM wiring (supply/sense): short circuit to each other
  • FRP sensor to ECM sense circuit short circuit to power
  • FRP sensor failure
  • Fuel pressure control valve (FPCV) fault
  • Fuel pump module circuit short circuit to power
  • Fuel pump module failure
Check the FRP sensor circuits. Refer to the electrical guides. For FRP sensor tests, refer to the relevant workshop manual section. Check the fuel lines, check the fuel pressure and the fuel pump module circuits.
P009000 Fuel Pressure Regulator 1 Control Circuit/Open
  • Fuel pressure control valve (PCV) circuit high resistance
  • FPCV circuit short circuit to ground
  • PCV failure
Check the fuel pressure control valve and circuits. Refer to the electrical guides. Check the resistance of the fuel pressure control valve. If the resistance is not between 0 and 5.4 ohms, install a new high pressure fuel pump (the fuel pressure control valve cannot be serviced separately). Refer to the relevant section of the workshop manual. Refer to the warranty policy and procedures manual if a high pressure fuel pump is suspect. Clear the DTCs and test for normal operation.
P009100 Fuel Pressure Regulator 1 Control Circuit Low
  • Fuel pressure control valve (PCV) circuit high resistance
  • PCV circuit short circuit to ground
  • PCV failure
Check the fuel pressure control valve and circuits. Refer to the electrical guides. Check the resistance of the fuel pressure control valve. If the resistance is not between 0 and 5.4 ohms, install a new high pressure fuel pump (the fuel pressure control valve cannot be serviced separately). Refer to the relevant section of the workshop manual. Refer to the warranty policy and procedures manual if a high pressure fuel pump is suspect. Clear the DTCs and test for normal operation.
P009200 Fuel Pressure Regulator 1 Control Circuit High
  • Fuel pressure control valve (PCV) circuit short circuit to power
  • PCV failure
Check the fuel pressure control valve and circuits. Refer to the electrical guides. Check the resistance of the fuel pressure control valve. If the resistance is not between 0 and 5.4 ohms, install a new high pressure fuel pump (the fuel pressure control valve cannot be serviced separately). Refer to the relevant section of the workshop manual. Refer to the warranty policy and procedures manual if a high pressure fuel pump is suspect. Clear the DTCs and test for normal operation.
P018100 Fuel Temperature Sensor A Circuit Range/Performance
  • Fuel temperature sensor circuit high resistance
  • Fuel temperature sensor circuit short circuit to ground
  • Fuel temperature sensor circuit short circuit to power
  • Fuel temperature sensor failure
Check the fuel temperature sensor and circuits. Refer to the electrical guides. Check the fuel temperature using a data logger function. Make sure the fuel temperature is less than 30°C (86°F). Start the engine and allow to warm up for ten minutes. Recheck the fuel temperature. If the value has not increased by more than 8°C in this time, install a new sensor. Refer to the relevant section of the workshop manual. Clear the DTCs and test for normal operation.
P018200 Fuel Temperature Sensor A Circuit Low
  • Fuel temperature sensor circuit high resistance
  • Fuel temperature sensor circuit short circuit to ground
  • Fuel temperature sensor failure
Check the fuel temperature sensor and circuits. Refer to the electrical guides. Check the fuel temperature using a data logger function. Make sure the fuel temperature is less than 30°C (86°F). Start the engine and allow to warm up for ten minutes. Recheck the fuel temperature. If the value has not increased by more than 8°C in this time, install a new sensor. Refer to the relevant section of the workshop manual. Clear the DTCs and test for normal operation.
P018300 Fuel Temperature Sensor A Circuit High
  • Fuel temperature sensor circuit short circuit to power
  • Fuel temperature sensor failure
Check the fuel temperature sensor and circuits. Refer to the electrical guides. Check the fuel temperature using a data logger function. Make sure the fuel temperature is less than 30°C (86°F). Start the engine and allow to warm up for ten minutes. Recheck the fuel temperature. If the value has not increased by more than 8°C in this time, install a new sensor. Refer to the relevant section of the workshop manual. Clear the DTCs and test for normal operation.
P018400 Fuel Temperature Sensor A Circuit Intermittent
  • Fuel temperature sensor circuit high resistance
  • Fuel temperature sensor circuit short circuit to ground
  • Fuel temperature sensor circuit short circuit to power
  • Fuel temperature sensor failure
Check the fuel temperature sensor and circuits. Refer to the electrical guides. Check the fuel temperature using a data logger function. Make sure the fuel temperature is less than 30°C (86°F). Start the engine and allow to warm up for ten minutes. Recheck the fuel temperature. If the value has not increased by more than 8°C in this time, install a new sensor. Refer to the relevant section of the workshop manual. Clear the DTCs and test for normal operation.
P019100 Fuel Rail Pressure Sensor A Circuit Range/Performance
  • Air in fuel system, unable to maintain correct fuel pressure at start up.
:
  If DTC P229000 is also logged, deal with that code first.

Check the fuel level and the condition and correct connection of the low-pressure fuel circuit lines (incorrect connection of the lines to and from the fuel filter can cause serious fuel pressure fluctuations). Check fuel system including all lines and components for leaks/air ingress. Perform fuel system bleed procedure. Clear the DTCs and test for normal operation.
P019200 Fuel Rail Pressure Sensor A Circuit Low
  • Fuel rail pressure (FRP) sensor circuit high resistance
  • FRP sensor circuit short circuit to ground
  • FRP sensor failure
Check the FRP sensor and circuits. Refer to the electrical guides. Start the engine and allow to idle. Check the fuel pressure value using a data logger function. If the value is 0 MPa (0 lbs/in²), install a new sensor. Refer to the relevant section of the workshop manual. Clear the DTCs and test for normal operation.
P019300 Fuel Rail Pressure Sensor A Circuit High
  • Fuel rail pressure (FRP) sensor circuit short circuit to power
  • FRP sensor failure
Check the FRP sensor and circuits. Refer to the electrical guides. Start the engine and allow to idle. Check the fuel pressure value using a data logger function. If the value is greater than 180 MPa (26,106 lbs/in²), install a new sensor. Refer to the relevant section of the workshop manual. Clear the DTCs and test for normal operation.
P019400 Fuel Rail Pressure Sensor A Circuit Intermittent/Erratic
  • Fuel rail pressure (FRP) sensor circuit high resistance
  • FRP sensor circuit short circuit to ground
  • FRP sensor circuit short circuit to power
  • FRP sensor failure
Check the FRP sensor and circuits. Refer to the electrical guides. Start the engine and allow to idle. Check the fuel pressure value using a data logger function. Increase the engine speed to 2,000 rpm and recheck the fuel pressure. If the value has changed by more than 40 MPa (5,801 lbs/in²) per 10 ms, install a new sensor. Refer to the relevant section of the workshop manual. Clear the DTCs and test for normal operation.
P020100 Cylinder 1 Injector Circuit / Open
  • Fuel injector circuit high resistance
  • Fuel injector circuit short circuit to ground
  • Fuel injector failure
During the following, clear DTCs and recheck after each step. Turn the ignition off and wait 20 seconds before turning the ignition back on to recheck DTCs. Check the connections for security. Disconnect the injector and measure the resistance and capacitance of the injector. If the resistance is not between 180 and 220 Kohms, or the capacitance not greater than 3 microfarad, install a new injector. If the injector is within specification, check the injector circuits for short circuit to ground, short circuit to power and for high resistance. Refer to the electrical guides. Repair/renew as necessary. Clear the DTCs and test for normal operation.
P020200 Cylinder 2 Injector Circuit / Open
  • Fuel injector circuit high resistance
  • Fuel injector circuit short circuit to ground
  • Fuel injector failure
During the following, clear DTCs and recheck after each step. Turn the ignition off and wait 20 seconds before turning the ignition back on to recheck DTCs. Check the connections for security. Disconnect the injector and measure the resistance and capacitance of the injector. If the resistance is not between 180 and 220 Kohms, or the capacitance not greater than 3 microfarad, install a new injector. If the injector is within specification, check the injector circuits for short circuit to ground, short circuit to power and for high resistance. Refer to the electrical guides. Repair/renew as necessary. Clear the DTCs and test for normal operation.
P020300 Cylinder 3 Injector Circuit / Open
  • Fuel injector circuit high resistance
  • Fuel injector circuit short circuit to ground
  • Fuel injector failure
During the following, clear DTCs and recheck after each step. Turn the ignition off and wait 20 seconds before turning the ignition back on to recheck DTCs. Check the connections for security. Disconnect the injector and measure the resistance and capacitance of the injector. If the resistance is not between 180 and 220 Kohms, or the capacitance not greater than 3 microfarad, install a new injector. If the injector is within specification, check the injector circuits for short circuit to ground, short circuit to power and for high resistance. Refer to the electrical guides. Repair/renew as necessary. Clear the DTCs and test for normal operation.
P020400 Cylinder 4 Injector Circuit / Open
  • Fuel injector circuit high resistance
  • Fuel injector circuit short circuit to ground
  • Fuel injector failure
During the following, clear DTCs and recheck after each step. Turn the ignition off and wait 20 seconds before turning the ignition back on to recheck DTCs. Check the connections for security. Disconnect the injector and measure the resistance and capacitance of the injector. If the resistance is not between 180 and 220 Kohms, or the capacitance not greater than 3 microfarad, install a new injector. If the injector is within specification, check the injector circuits for short circuit to ground, short circuit to power and for high resistance. Refer to the electrical guides. Repair/renew as necessary. Clear the DTCs and test for normal operation.
P020500 Cylinder 5 Injector Circuit / Open
  • Fuel injector circuit high resistance
  • Fuel injector circuit short circuit to ground
  • Fuel injector failure
During the following, clear DTCs and recheck after each step. Turn the ignition off and wait 20 seconds before turning the ignition back on to recheck DTCs. Check the connections for security. Disconnect the injector and measure the resistance and capacitance of the injector. If the resistance is not between 180 and 220 Kohms, or the capacitance not greater than 3 microfarad, install a new injector. If the injector is within specification, check the injector circuits for short circuit to ground, short circuit to power and for high resistance. Refer to the electrical guides. Repair/renew as necessary. Clear the DTCs and test for normal operation.
P020600 Cylinder 6 Injector Circuit / Open
  • Fuel injector circuit high resistance
  • Fuel injector circuit short circuit to ground
  • Fuel injector failure
During the following, clear DTCs and recheck after each step. Turn the ignition off and wait 20 seconds before turning the ignition back on to recheck DTCs. Check the connections for security. Disconnect the injector and measure the resistance and capacitance of the injector. If the resistance is not between 180 and 220 Kohms, or the capacitance not greater than 3 microfarad, install a new injector. If the injector is within specification, check the injector circuits for short circuit to ground, short circuit to power and for high resistance. Refer to the electrical guides. Repair/renew as necessary. Clear the DTCs and test for normal operation.
P020A00 Cylinder 1 Injection Timing
  • Fuel injector circuit high resistance
  • Fuel injector circuit short circuit to ground
  • Fuel injector circuit short circuit to power
  • Fuel injector failure
During the following, clear DTCs and recheck after each step. Turn the ignition off and wait 20 seconds before turning the ignition back on to recheck DTCs. Check the connections for security. Disconnect the injector and measure the resistance and capacitance of the injector. If the resistance is not between 180 and 220 Kohms, or the capacitance not greater than 3 microfarad, install a new injector. If the injector is within specification, check the injector circuits for short circuit to ground, short circuit to power and for high resistance. Refer to the electrical guides. Repair/renew as necessary. Clear the DTCs and test for normal operation.
P020B00 Cylinder 2 Injection Timing
  • Fuel injector circuit high resistance
  • Fuel injector circuit short circuit to ground
  • Fuel injector circuit short circuit to power
  • Fuel injector failure
During the following, clear DTCs and recheck after each step. Turn the ignition off and wait 20 seconds before turning the ignition back on to recheck DTCs. Check the connections for security. Disconnect the injector and measure the resistance and capacitance of the injector. If the resistance is not between 180 and 220 Kohms, or the capacitance not greater than 3 microfarad, install a new injector. If the injector is within specification, check the injector circuits for short circuit to ground, short circuit to power and for high resistance. Refer to the electrical guides. Repair/renew as necessary. Clear the DTCs and test for normal operation.
P020C00 Cylinder 3 Injection Timing
  • Fuel injector circuit high resistance
  • Fuel injector circuit short circuit to ground
  • Fuel injector circuit short circuit to power
  • Fuel injector failure
During the following, clear DTCs and recheck after each step. Turn the ignition off and wait 20 seconds before turning the ignition back on to recheck DTCs. Check the connections for security. Disconnect the injector and measure the resistance and capacitance of the injector. If the resistance is not between 180 and 220 Kohms, or the capacitance not greater than 3 microfarad, install a new injector. If the injector is within specification, check the injector circuits for short circuit to ground, short circuit to power and for high resistance. Refer to the electrical guides. Repair/renew as necessary. Clear the DTCs and test for normal operation.
P020D00 Cylinder 4 Injection Timing
  • Fuel injector circuit high resistance
  • Fuel injector circuit short circuit to ground
  • Fuel injector circuit short circuit to power
  • Fuel injector failure
During the following, clear DTCs and recheck after each step. Turn the ignition off and wait 20 seconds before turning the ignition back on to recheck DTCs. Check the connections for security. Disconnect the injector and measure the resistance and capacitance of the injector. If the resistance is not between 180 and 220 Kohms, or the capacitance not greater than 3 microfarad, install a new injector. If the injector is within specification, check the injector circuits for short circuit to ground, short circuit to power and for high resistance. Refer to the electrical guides. Repair/renew as necessary. Clear the DTCs and test for normal operation.
P020E00 Cylinder 5 Injection Timing
  • Fuel injector circuit high resistance
  • Fuel injector circuit short circuit to ground
  • Fuel injector circuit short circuit to power
  • Fuel injector failure
During the following, clear DTCs and recheck after each step. Turn the ignition off and wait 20 seconds before turning the ignition back on to recheck DTCs. Check the connections for security. Disconnect the injector and measure the resistance and capacitance of the injector. If the resistance is not between 180 and 220 Kohms, or the capacitance not greater than 3 microfarad, install a new injector. If the injector is within specification, check the injector circuits for short circuit to ground, short circuit to power and for high resistance. Refer to the electrical guides. Repair/renew as necessary. Clear the DTCs and test for normal operation.
P020F00 Cylinder 6 Injection Timing
  • Fuel injector circuit high resistance
  • Fuel injector circuit short circuit to ground
  • Fuel injector circuit short circuit to power
  • Fuel injector failure
During the following, clear DTCs and recheck after each step. Turn the ignition off and wait 20 seconds before turning the ignition back on to recheck DTCs. Check the connections for security. Disconnect the injector and measure the resistance and capacitance of the injector. If the resistance is not between 180 and 220 Kohms, or the capacitance not greater than 3 microfarad, install a new injector. If the injector is within specification, check the injector circuits for short circuit to ground, short circuit to power and for high resistance. Refer to the electrical guides. Repair/renew as necessary. Clear the DTCs and test for normal operation.
P029A00 Cylinder 1- Fuel Trim at Max Limit
  • Fuel injector circuit high resistance
  • Fuel injector circuit short circuit to ground
  • Fuel injector circuit short circuit to power
  • Injector leak
  • Cylinder compression low Cylinder leakage past the injector Cylinder leakage past the glow plug Mechanical fault, valve, piston/ring, etc
  • Injector fault
Refer to the electrical guides and check the fuel injector circuit. Check the injector and surrounding area for evidence of fuel leakage. Disconnect the injector and check for evidence of fuel leakage in the connector. Rectify as necessary. Clear the DTCs. Reconnect the injector and start the engine. Allow to warm up to above 60°C (140°F) and allow to idle (cylinder balance diagnosis is now active). If the DTC resets, check for Cylinder leakage and rectify as necessary. Clear the DTCs and recheck. Carry out a compression test only if the DTC resets. If the above tests are all within range, install a new injector.
P029B00 Cylinder 1- Fuel Trim at Min Limit
  • Fuel injector circuit high resistance
  • Fuel injector circuit short circuit to ground
  • Fuel injector circuit short circuit to power
  • Injector leak
  • Cylinder compression low Cylinder leakage past the injector Cylinder leakage past the glow plug Mechanical fault, valve, piston/ring, etc
  • Injector fault
Refer to the electrical guides and check the fuel injector circuit. Check the injector and surrounding area for evidence of fuel leakage. Disconnect the injector and check for evidence of fuel leakage in the connector. Rectify as necessary. Clear the DTCs. Reconnect the injector and start the engine. Allow to warm up to above 60°C (140°F) and allow to idle (cylinder balance diagnosis is now active). If the DTC resets, check for Cylinder leakage and rectify as necessary. Clear the DTCs and recheck. Carry out a compression test only if the DTC resets. If the above tests are all within range, install a new injector.
P029E00 Cylinder 2- Fuel Trim at Max Limit
  • Fuel injector circuit high resistance
  • Fuel injector circuit short circuit to ground
  • Fuel injector circuit short circuit to power
  • Injector leak
  • Cylinder compression low Cylinder leakage past the injector Cylinder leakage past the glow plug Mechanical fault, valve, piston/ring, etc
  • Injector fault
Refer to the electrical guides and check the fuel injector circuit. Check the injector and surrounding area for evidence of fuel leakage. Disconnect the injector and check for evidence of fuel leakage in the connector. Rectify as necessary. Clear the DTCs. Reconnect the injector and start the engine. Allow to warm up to above 60°C (140°F) and allow to idle (cylinder balance diagnosis is now active). If the DTC resets, check for Cylinder leakage and rectify as necessary. Clear the DTCs and recheck. Carry out a compression test only if the DTC resets. If the above tests are all within range, install a new injector.
P029F00 Cylinder 2 - Fuel Trim at Min Limit
  • Fuel injector circuit high resistance
  • Fuel injector circuit short circuit to ground
  • Fuel injector circuit short circuit to power
  • Injector leak
  • Cylinder compression low Cylinder leakage past the injector Cylinder leakage past the glow plug Mechanical fault, valve, piston/ring, etc
  • Injector fault
Refer to the electrical guides and check the fuel injector circuit. Check the injector and surrounding area for evidence of fuel leakage. Disconnect the injector and check for evidence of fuel leakage in the connector. Rectify as necessary. Clear the DTCs. Reconnect the injector and start the engine. Allow to warm up to above 60°C (140°F) and allow to idle (cylinder balance diagnosis is now active). If the DTC resets, check for Cylinder leakage and rectify as necessary. Clear the DTCs and recheck. Carry out a compression test only if the DTC resets. If the above tests are all within range, install a new injector.
P02A200 Cylinder 3 - Fuel Trim at Max Limit
  • Fuel injector circuit high resistance
  • Fuel injector circuit short circuit to ground
  • Fuel injector circuit short circuit to power
  • Injector leak
  • Cylinder compression low Cylinder leakage past the injector Cylinder leakage past the glow plug Mechanical fault, valve, piston/ring, etc
  • Injector fault
Refer to the electrical guides and check the fuel injector circuit. Check the injector and surrounding area for evidence of fuel leakage. Disconnect the injector and check for evidence of fuel leakage in the connector. Rectify as necessary. Clear the DTCs. Reconnect the injector and start the engine. Allow to warm up to above 60°C (140°F) and allow to idle (cylinder balance diagnosis is now active). If the DTC resets, check for Cylinder leakage and rectify as necessary. Clear the DTCs and recheck. Carry out a compression test only if the DTC resets. If the above tests are all within range, install a new injector.
P02A300 Cylinder 3 - Fuel Trim at Min Limit
  • Fuel injector circuit high resistance
  • Fuel injector circuit short circuit to ground
  • Fuel injector circuit short circuit to power
  • Injector leak
  • Cylinder compression low Cylinder leakage past the injector Cylinder leakage past the glow plug Mechanical fault, valve, piston/ring, etc
  • Injector fault
Refer to the electrical guides and check the fuel injector circuit. Check the injector and surrounding area for evidence of fuel leakage. Disconnect the injector and check for evidence of fuel leakage in the connector. Rectify as necessary. Clear the DTCs. Reconnect the injector and start the engine. Allow to warm up to above 60°C (140°F) and allow to idle (cylinder balance diagnosis is now active). If the DTC resets, check for Cylinder leakage and rectify as necessary. Clear the DTCs and recheck. Carry out a compression test only if the DTC resets. If the above tests are all within range, install a new injector.
P02A600 Cylinder 4 - Fuel Trim at Max Limit
  • Fuel injector circuit high resistance
  • Fuel injector circuit short circuit to ground
  • Fuel injector circuit short circuit to power
  • Injector leak
  • Cylinder compression low Cylinder leakage past the injector Cylinder leakage past the glow plug Mechanical fault, valve, piston/ring, etc
  • Injector fault
Refer to the electrical guides and check the fuel injector circuit. Check the injector and surrounding area for evidence of fuel leakage. Disconnect the injector and check for evidence of fuel leakage in the connector. Rectify as necessary. Clear the DTCs. Reconnect the injector and start the engine. Allow to warm up to above 60°C (140°F) and allow to idle (cylinder balance diagnosis is now active). If the DTC resets, check for Cylinder leakage and rectify as necessary. Clear the DTCs and recheck. Carry out a compression test only if the DTC resets. If the above tests are all within range, install a new injector.
P02A700 Cylinder 4 - Fuel Trim at Min Limit
  • Fuel injector circuit high resistance
  • Fuel injector circuit short circuit to ground
  • Fuel injector circuit short circuit to power
  • Injector leak
  • Cylinder compression low Cylinder leakage past the injector Cylinder leakage past the glow plug Mechanical fault, valve, piston/ring, etc
  • Injector fault
Refer to the electrical guides and check the fuel injector circuit. Check the injector and surrounding area for evidence of fuel leakage. Disconnect the injector and check for evidence of fuel leakage in the connector. Rectify as necessary. Clear the DTCs. Reconnect the injector and start the engine. Allow to warm up to above 60°C (140°F) and allow to idle (cylinder balance diagnosis is now active). If the DTC resets, check for Cylinder leakage and rectify as necessary. Clear the DTCs and recheck. Carry out a compression test only if the DTC resets. If the above tests are all within range, install a new injector.
P02AA00 Cylinder 5 - Fuel Trim at Max Limit
  • Fuel injector circuit high resistance
  • Fuel injector circuit short circuit to ground
  • Fuel injector circuit short circuit to power
  • Injector leak
  • Cylinder compression low Cylinder leakage past the injector Cylinder leakage past the glow plug Mechanical fault, valve, piston/ring, etc
  • Injector fault
Refer to the electrical guides and check the fuel injector circuit. Check the injector and surrounding area for evidence of fuel leakage. Disconnect the injector and check for evidence of fuel leakage in the connector. Rectify as necessary. Clear the DTCs. Reconnect the injector and start the engine. Allow to warm up to above 60°C (140°F) and allow to idle (cylinder balance diagnosis is now active). If the DTC resets, check for Cylinder leakage and rectify as necessary. Clear the DTCs and recheck. Carry out a compression test only if the DTC resets. If the above tests are all within range, install a new injector.
P02AB00 Cylinder 5 - Fuel Trim at Min Limit
  • Fuel injector circuit high resistance
  • Fuel injector circuit short circuit to ground
  • Fuel injector circuit short circuit to power
  • Injector leak
  • Cylinder compression low Cylinder leakage past the injector Cylinder leakage past the glow plug Mechanical fault, valve, piston/ring, etc
  • Injector fault
Refer to the electrical guides and check the fuel injector circuit. Check the injector and surrounding area for evidence of fuel leakage. Disconnect the injector and check for evidence of fuel leakage in the connector. Rectify as necessary. Clear the DTCs. Reconnect the injector and start the engine. Allow to warm up to above 60°C (140°F) and allow to idle (cylinder balance diagnosis is now active). If the DTC resets, check for Cylinder leakage and rectify as necessary. Clear the DTCs and recheck. Carry out a compression test only if the DTC resets. If the above tests are all within range, install a new injector.
P02AE00 Cylinder 6 - Fuel Trim at Max Limit
  • Fuel injector circuit high resistance
  • Fuel injector circuit short circuit to ground
  • Fuel injector circuit short circuit to power
  • Injector leak
  • Cylinder compression low Cylinder leakage past the injector Cylinder leakage past the glow plug Mechanical fault, valve, piston/ring, etc
  • Injector fault
Refer to the electrical guides and check the fuel injector circuit. Check the injector and surrounding area for evidence of fuel leakage. Disconnect the injector and check for evidence of fuel leakage in the connector. Rectify as necessary. Clear the DTCs. Reconnect the injector and start the engine. Allow to warm up to above 60°C (140°F) and allow to idle (cylinder balance diagnosis is now active). If the DTC resets, check for Cylinder leakage and rectify as necessary. Clear the DTCs and recheck. Carry out a compression test only if the DTC resets. If the above tests are all within range, install a new injector.
P02AF00 Cylinder 6 - Fuel Trim at Min Limit
  • Fuel injector circuit high resistance
  • Fuel injector circuit short circuit to ground
  • Fuel injector circuit short circuit to power
  • Injector leak
  • Cylinder compression low Cylinder leakage past the injector Cylinder leakage past the glow plug Mechanical fault, valve, piston/ring, etc
  • Injector fault
Refer to the electrical guides and check the fuel injector circuit. Check the injector and surrounding area for evidence of fuel leakage. Disconnect the injector and check for evidence of fuel leakage in the connector. Rectify as necessary. Clear the DTCs. Reconnect the injector and start the engine. Allow to warm up to above 60°C (140°F) and allow to idle (cylinder balance diagnosis is now active). If the DTC resets, check for Cylinder leakage and rectify as necessary. Clear the DTCs and recheck. Carry out a compression test only if the DTC resets. If the above tests are all within range, install a new injector.
P062D00 Fuel Injector Driver Circuit Performance Bank 1
  • Injector(s) disconnected
  • Injector circuit high resistance, short circuit to ground, short circuit to power
  • Injector failure
  • ECM failure
Refer to the electrical guides and check the injector circuits. Rectify as necessary. Clear the DTCs and test for normal operation. Refer to the relevant workshop manual section. Refer to the warranty policy and procedures manual if a module is suspect.
P062D01 Fuel Injector Driver Circuit Performance Bank 1
  • Injector(s) short circuit
  • Injector circuit high resistance, short circuit to ground, short circuit to power
  • Injector failure
  • ECM failure
If non start condition check for shorts on injector circuits. If rough running check for intermitent open circuits or high resistance on injector circuits. If no wiring faults are found, using approved diagnostic equipment perform injector spill tests. Follow actions recommended based on results from spill tests.
P062E00 Fuel Injector Driver Circuit Performance Bank 2
  • Injector(s) disconnected
  • Injector circuit high resistance, short circuit to ground, short circuit to power
  • Injector failure
  • ECM failure
Refer to the electrical guides and check the injector circuits. Rectify as necessary. Clear the DTCs and test for normal operation. Refer to the relevant workshop manual section. Refer to the warranty policy and procedures manual if a module is suspect.
P062E01 Fuel Injector Driver Circuit Performance Bank 2
  • Injector(s) short circuit
  • Injector circuit high resistance, short circuit to ground, short circuit to power
  • Injector failure
  • ECM failure
If non start condition check for shorts on injector circuits. If rough running check for intermitent open circuits or high resistance on injector circuits. If no wiring faults are found, using approved diagnostic equipment perform injector spill tests. Follow actions recommended based on results from spill tests.
P120000 Injector Range/Performance
  • Fuel injector circuit high resistance
  • Fuel injector circuit short circuit to ground
  • Fuel injector circuit short circuit to power
  • Fuel injector leaking
  • Fuel injector failure
  • ECM failure
Refer to the electrical guides and check the injector circuits. Refer to the relevant workshop manual section. Refer to the warranty policy and procedures manual if a module is suspect.
P155100 Cylinder 1 Injector Circuit Range/Performance
  • Injector disconnected
  • Injector circuit high resistance, short circuit to ground, short circuit to power
  • Injector failure
Check the injector circuits. Refer to the electrical guides. Rectify as necessary. Refer to the relevant workshop manual section.
P155200 Cylinder 2 Injector Circuit Range/Performance
  • Injector disconnected
  • Injector circuit high resistance, short circuit to ground, short circuit to power
  • Injector failure
Check the injector circuits. Refer to the electrical guides. Rectify as necessary. Refer to the relevant workshop manual section.
P155300 Cylinder 3 Injector Circuit Range/Performance
  • Injector disconnected
  • Injector circuit high resistance, short circuit to ground, short circuit to power
  • Injector failure
Check the injector circuits. Refer to the electrical guides. Rectify as necessary. Refer to the relevant workshop manual section.
P155400 Cylinder 4 Injector Circuit Range/Performance
  • Injector disconnected
  • Injector circuit high resistance, short circuit to ground, short circuit to power
  • Injector failure
Check the injector circuits. Refer to the electrical guides. Rectify as necessary. Refer to the relevant workshop manual section.
P155400 Cylinder 5 Injector Circuit Range/Performance
  • Injector disconnected
  • Injector circuit high resistance, short circuit to ground, short circuit to power
  • Injector failure
Check the injector circuits. Refer to the electrical guides. Rectify as necessary. Refer to the relevant workshop manual section.
P155600 Cylinder 6 Injector Circuit Range/Performance
  • Injector disconnected
  • Injector circuit high resistance, short circuit to ground, short circuit to power
  • Injector failure
Check the injector circuits. Refer to the electrical guides. Rectify as necessary. Refer to the relevant workshop manual section.
P156300 Injection Pump Control Module Requesting Engine Stop
  • Internal control module monitoring performance
Clear the DTC. Cycle the ignition, allow power latch and retest. If the DTC resets, refer to the warranty policy and procedures manual if a module is suspect.
P226900 Water in Fuel Condition
  • Water in fuel condition
  • Water in fuel sensor circuit short circuit to ground
  • Water in fuel sensor fault
Drain the water from the fuel filter. Clear the DTC and retest. If the DTC resets, check the sensor circuit. Refer to the electrical guides. If no fault is found in the circuits, install a new sensor.
P228800 Injector Control Pressure Too High
  • Fuel pressure control valve (FPCV) minimum limit reached
  • Fuel injector control pressure too high
  • FPCV circuit fault
  • FPCV failure
  • Fuel pump module circuit short circuit to power
  • Fuel pump module failure
  • Fuel injection pump failure
Check the fuel pressure, refer to the relevant section of the workshop manual. Check the fuel pump module circuits and the FPCV circuits. Refer to the electrical guides. For FPCV and fuel injection pump, refer to the relevant workshop manual section.
P229000 Injector Control Pressure Too Low
  • Fuel pressure control valve (FPCV) maximum limit reached
  • Fuel injector control pressure too low
  • Fuel line leak
  • Fuel filter/system restriction
  • FPCV circuit fault
  • FPCV failure
  • Fuel pump module circuit short circuit to ground
  • Fuel pump module failure
  • Fuel injection pump failure
Check the fuel pressure, refer to the relevant section of the workshop manual. Check the fuel pump module circuits and the FPCV circuits. Refer to the electrical guides. For FPCV and fuel injection pump, refer to the relevant workshop manual section.
P229200 Injector Control Pressure Erratic
  • Fuel injector control pressure erratic
  • FPCV circuit fault
  • FPCV failure
  • Fuel pump module circuit high resistance, short circuit to ground, short circuit to power
  • Fuel pump module failure
  • Fuel injection pump failure
Check the fuel pressure, refer to the relevant section of the workshop manual. Check the fuel pump module circuits and the FPCV circuits. Refer to the electrical guides. For FPCV and fuel injection pump, refer to the relevant workshop manual section.