Diagnostic Trouble Code (DTC) Information

ECM-P017500 System Too Rich (Bank 2)

Condition
Engine Control Module (ECM) receives information from the heated oxygen sensor about fuel/air mixture in different load areas. If Engine Control Module (ECM) registers that fuel/air mixture deviates too much from target lambda, so that adaptations for bank 2 end up in any of its end-positions, the diagnostic trouble code is generated.

Substitute Value
- Nothing.

Possible Source
- Oil level too high.
- Contaminated engine oil (gasoline mixed in oil).
- Leaking injectors.
- Leaking EVAP-valve
- High fuel pressure.
- Damaged mass air flow sensor.
- Loose components in the induction system.

Fault Symptom[s]
- Malfunction indicator lamp (MIL) lit.
- Poor performance.
- Engine misfires.