Possible Causes
- Camshaft Position (CMP) sensor malfunction.
- CKP sensor malfunction.
- EGR valve malfunction.
- Excessive leak in intake air system (between Mass Airflow (MAF) sensor and dynamic chamber).
- Fuel filter clogged.
- Fuel leak in fuel line.
- Fuel line clogged.
- Fuel pressure regulator malfunction.
- Fuel pump malfunction.
- Ignition coil malfunction.
- Mass Airflow (MAF) sensor contamination.
- PCV valve malfunction.
- Purge control solenoid valve malfunction.
- Vacuum hoses misrouted or damaged.
- Wiring or connector and terminal malfunction.