| POSSIBLE CAUSE |
- Engine overheating (due to cooling system malfunction)
- ECT sensor No. 1 malfunction
- Erratic signal to PCM
- MAF sensor malfunction
- IAT sensor malfunction
- KS malfunction
- CMP sensor malfunction
- Inadequate engine compression
- Inadequate fuel pressure
- Restriction in fuel line
- Pressure regulator malfunction (built-in fuel pump unit)
- Fuel pump mechanical malfunction
- Improper ignition timing
- PCM malfunction
WARNING:
The following troubleshooting flow chart contains the fuel system diagnosis and repair procedures. Read the following warnings before performing the fuel system services:
- 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 repair information. (See AFTER SERVICE PRECAUTION
.)
CAUTION:
- Disconnecting/connecting the quick release connector without cleaning it may possibly cause damage to fuel pipe and 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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