Symptom |
Possible cause |
Action |
Difficult to start cold |
- Battery
- Crankshaft position (CKP) sensor
- Exhaust gas recirculation (EGR) valve stuck open
- Fuel system
- Evaporative emissions purge valve
|
For battery information, CKP sensor tests, fuel system and
purge valve tests, refer to relevant workshop manual section. Check the
EGR valve. Refer to the guided diagnostic routine on the approved
diagnostic system. |
Engine stalls soon after start |
- Breather system disconnected/restricted
- ECM relay
- MAF sensor
- Ignition system
- Air filter restricted
- Air leakage
- Fuel lines
|
Check the engine breather hoses, PCV, etc. Check the ECM
relay operation. For MAF sensor, ignition system tests, air intake
information and fuel line information, refer to relevant workshop manual
section. |
Poor throttle response |
- APP sensor malfunction
- TP sensors
- ECT sensor
- MAF sensor
- Transmission malfunction
- Traction control event
- Air leakage
- Breather system disconnected/restricted
|
For APP, TP, ECT, MAF sensor tests, intake system checks and
transmission information, refer to relevant workshop manual section. Check
the breather system hoses, PCV, etc. |