Possible Causes:
- Vacuum Leaks
- Clogged or faulty MAF (Mass Air Flow) Sensor
- Faulty EGR Valve or other parts of EGR System
- Faulty Oxygen Sensor
- Inlet Manifold leaks
- Improperly installed aftermarket intake
- Low fuel pressure
- Clogged up Catalytic Converter
Possible Solutions:
- Inspect all vacuum pipes and EGR System
- Replace MAF if necessary
- Inspect/ or test the intake manifold gaskets for leakage
- Check for a dirty fuel filter
- Check for a dirty fuel filter
- Check for proper fuel pressure
- Replace the catalyst is necessary
