2010 Porsche Panamera Turbo (970) V8-4.8L Turbo A L L Diagnostic Trouble Codes ( DTC ): P Code Charts Page 266
- Engine running > 2 Minute(s), at:
- Engine at operating temperature
- All models: Oxygen sensor(s) ready for operation
- then steady driving > 10 Minute(s), at:
- Engine speed < 800 ... 3,200 1/min
- Mass air flow 120 ... 520 mg/stroke
- without Overrun phase(s)
Possible fault causes
- Short circuit to B+/ground/between lines or open circuit in the lines
- Different air flow to the oxygen sensor behind the catalytic converter, at:
- Catalytic converter damaged
- modified or nongenuine components
- Oxygen sensor in front of catalytic converter Bank 2 Faulty (aged)
P0155
P0155
Diagnosis information - Control unit DME (DFI)
Heating current circuit Oxygen sensor in front of catalytic converter Bank 2
NOTE
Separated plug connection = open reference-air duct.
Damage to oxygen sensor.
- DO NOT use spray, grease, fluid or similar products on the oxygen sensor plug connections.
INFORMATION
- Do not interchange the oxygen sensor in front of the catalytic converter with the sensor behind the catalytic converter as this will result in
implausible fault entries.
- The plugs themselves are coded and cannot be interchanged.
Diagnostic conditions
- Engine running > 10 Second(s), at:
- Oxygen sensor heater Ahead of catalytic converter Active
- Lambda control Active
- none of the following faults stored: P0050, P0051, P0052 :
Possible fault causes
- Contact resistance (Power supply or Activation)
- Shunt (high-resistance) Heating current circuit --> Signal lead
- Oxygen sensor in front of catalytic converter Bank 2 Faulty
P0156
P0156
Diagnosis information - Control unit DME (DFI)
Oxygen sensor behind catalytic converter Bank 2
NOTE
Separated plug connection = open reference-air duct.
Damage to oxygen sensor.
- DO NOT use spray, grease, fluid or similar products on the oxygen sensor plug connections.
INFORMATION
- Do not interchange the oxygen sensor in front of the catalytic converter with the sensor behind the catalytic converter as this will result in
implausible fault entries.
- The plugs themselves are coded and cannot be interchanged.
Diagnostic conditions
- Driving, at:
- at operating temperature
