DTC |
Description |
Possible causes |
Action |
P010100 |
Mass or Volume Air Flow A Circuit |
- Blocked air cleaner
- Air intake leak
- Engine breather leak
- Mass air flow (MAF) sensor sensing circuit high resistance,
intermittent short circuit to ground
- MAF sensor supply circuit high resistance
|
Check the air cleaner for blockage, etc. Check the air
intake system for leaks. Check the engine breather system. Refer to the
relevant workshop manual section. Refer to the guided diagnostic routine
for this code on the approved diagnostic system. |
P010600 |
Manifold Absolute Pressure/BARO Sensor Range/Performance |
- Intake manifold air leak (loose or missing component)
- MAP sensor circuit(s) fault
- MAP sensor failure
|
Check the intake manifold for security, etc. Refer to the
guided diagnostic routine for this code on the approved diagnostic system.
|
P017100 |
System Too Lean (Bank 1) |
- Air intake leak between MAF sensor and cylinder head
- MAF sensor fault (low intake air flow)
- Fuel filter/system restriction
- Low fuel pressure
- Fuel injector restriction
- Exhaust leak (before catalyst)
- Evaporative emission system fault
|
Check the intake air system for leaks, etc. Check the fuel
system for restrictions, DTCs, etc. Check the exhaust system for leaks,
etc. Check for evaporative emission DTCs. |
P017200 |
System Too Rich (Bank 1) |
- Restricted air filter
- High fuel pressure
- Leaking fuel injector(s)
- Oil contaminated with fuel (too many cold starts with vehicle
subsequently not getting hot enough for long enough)
- MAF sensor fault
- Evaporative emission system fault
|
Check the intake air system for restrictions, etc. Check the
fuel system for leaks, DTCs, etc. Check the oil condition. Check for MAF
sensor and evaporative emission DTCs. |
P017400 |
System Too Lean (Bank 2) |
- Air intake leak between MAF sensor and cylinder head
- MAF sensor fault (low intake air flow)
- Fuel filter/system restriction
- Low fuel pressure
- Fuel injector restriction
- Exhaust leak (before catalyst)
- Evaporative emission system fault
|
Check the intake air system for leaks, etc. Check the fuel
system for restrictions, DTCs, etc. Check the exhaust system for leaks,
etc. Check for evaporative emission DTCS. |
P017500 |
System too Rich (Bank 2) |
- Restricted air filter
- High fuel pressure
- Leaking fuel injector(s)
- Oil contaminated with fuel (too many cold starts with vehicle
subsequently not getting hot enough for long enough)
- MAF sensor fault
- Evaporative emission system fault
|
Check the intake air system for restrictions, etc. Check the
fuel system for leaks, DTCs, etc. Check the oil condition. Check for MAF
sensor and evaporative emission DTCs. |
P050600 |
Idle Air Control System RPM Lower Than Expected |
- Air intake restriction
- Accessory drive overload (defective/seized component)
|
Check the air intake system. Check the accessory drive belt
and components. Refer to the relevant workshop manual section. |
P050700 |
Idle Air Control System RPM Higher Than Expected |
- Intake air leak between the mass air flow (MAF) sensor and throttle
- Intake air leak between throttle and engine
- Engine crankcase breather leak
|
Check the air intake system. Check the engine breather
system. Refer to the relevant workshop manual section. |
P066100 |
Intake Manifold Tuning Valve Control Circuit Low - Bank 1
|
- Variable intake system tuning valve control circuit short to ground
- Intake tuning valve fault
|
Check the intake tuning valve and circuits. Refer to the
electrical guides. If no fault is found in the circuits, install a new
intake tuning valve. Clear the DTCs and test for normal operation. |
P066200 |
Intake Manifold Tuning Valve Control Circuit High - Bank 1
|
- Variable intake system tuning valve control circuit short to power
- Intake tuning valve fault
|
Check the intake tuning valve and circuits. Refer to the
electrical guides. If no fault is found in the circuits, install a new
intake tuning valve. Clear the DTCs and test for normal operation. |
P207000 |
Intake Manifold Tuning Valve Control Stuck Open Bank 1 |
- Variable intake system tuning valve control circuit short to power
- Intake tuning valve fault
|
Check the intake tuning valve and circuits. Refer to the
electrical guides. If no fault is found in the circuits, install a new
intake tuning valve. Clear the DTCs and test for normal operation. |
P207100 |
Intake Manifold Tuning Valve Control Stuck Open Bank 2 |
- Variable intake system tuning valve control circuit short to power
- Intake tuning valve fault
|
Check the intake tuning valve and circuits. Refer to the
electrical guides. If no fault is found in the circuits, install a new
intake tuning valve. Clear the DTCs and test for normal operation.
|