| POSSIBLE CAUSE |
NOTE:
- If the ignition is not switched off (to LOCK or ACC) after the engine stalls, and then an engine restart is attempted, the PCM corrects the difference between CKP sensor and CMP sensor signals caused by engine stalling, which may result in more time needed to restart the engine.
- Vacuum leakage
- Poor fuel quality
- Air leakage from intake-air system
- Intake-air system restriction
- PCM DTC is stored.
- Cooling system malfunction
- Ignition coil related wiring harness malfunction
- Ignition system malfunction
- Spark plug malfunction
- CKP sensor and teeth of crankshaft pulley malfunction
- Improper operation of drive-by-wire control system
- Excessive or insufficient fuel pressure
- Fuel pump relay or fuel pump circuit malfunction
- Restriction in fuel line
- Pressure regulator malfunction (built-into fuel pump unit)
- Fuel pump unit malfunction
- Fuel leakage from fuel system
- Purge solenoid valve malfunction
- MAF sensor malfunction
- Restriction in exhaust system
- EGR valve malfunction
- Starting system malfunction
WARNING:
- The following troubleshooting flow chart contains the fuel system diagnosis and repair procedures. Read the following warnings before servicing the fuel system:
- Fuel vapor is hazardous. It can easily ignite, causing serious injury and damage. Always keep sparks and flames away from fuel.
- Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injuries or death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete "BEFORE SERVICE PRECAUTION" and "AFTER SERVICE PRECAUTION" described in this manual. (See BEFORE SERVICE PRECAUTION
.) (See AFTER SERVICE PRECAUTION
.)
CAUTION:
- Disconnecting/connecting the quick release connector without cleaning it may cause damage to the fuel pipe and the quick release connector. Always clean the quick release connector joint area before disconnecting/connecting, and make sure that it is free of foreign material.
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