Diagnosis Conditions
- Oxygen sensing system active
- Time elapsed after engine start-up:
- 250 to 350 seconds (USA)
- 302 to 402 seconds (RoW)
- Engine temperature > 62° C
- Intake air temperature < 90° C
- Air mass flow < 31 kg/h (986 and 986 S < 28 kg.h)
- Engine speed < 960 RPM
- No faults in memory
NOTE:
If DTC P0445 (EVAP canister purge valve - short to ground) is stored in the memory, correct this fault first. An open EVAP canister purge valve can lead to the lean threshold being reached. Contrary adaptation values in connection with misfiring point to adjusted control times, check control times and adjust as necessary.
If the fuel tank reserve light is switched on, no fault is entered.