Multiplicative adaptation: Diagnostics
- If the correction factor reaches 1.25 (25%), diagnostic trouble code P0171 will be generated.
The fault can be caused by:
- Low fuel pressure.
- Defective mass air flow sensor.
- If the correction factor reaches 0.75 (-25%), diagnostic trouble code P0172 will be generated.
The fault can be caused by:
- Air leak between the compressor and the throttle.
- Defective mass air flow sensor.