Porsche Cayman S (987) F6-3.4L P Code
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P0127
P0127
Diagnosis information - DME V6 DFI Intake air temperature implausible NOTE:
- The intake air temperature sensor is integrated into the hot-film mass air flow sensor.
- The hot-film mass air flow sensor must not be removed, but only interchanged complete with tubular piece.
NOTE: Diagnosis compares the intake air temperature for a vehicle which has been stopped for a long period of time with the engine temperature. These values must be approximately the same when the engine is started again.
Diagnostic conditions
- Battery positive voltage between 10 V and 16 V
- Vehicle speed above 40 km/h (25 mph)
- Intake mass air flow 52 - 300 kg/h
- No relevant faults stored (vehicle speed)
Possible fault causes
- Intake air temperature sensor faulty (short circuit or contact resistances)
Affected contacts on the DFI control unit connector
Connector [B]: - Contact 13
Affected contacts on the hot-film mass air flow sensor connector (naturally aspirated engine)
- Contact 1