P0040
P0040
Diagnosis information - DME (DFI)
Oxygen sensors ahead of catalytic converter interchanged
NOTE:
Do not use contact spray on the oxygen sensor's plug connections as this will result in irreparable damage to the lines (blockage of reference
air duct).
- Do not interchange the oxygen sensor ahead of catalytic converter with the sensor behind the catalytic converter as this will result in
implausible fault entries.
Diagnostic conditions
- Perform short tests [Oxygen sensor active test]
or (if no short test is possible):
- Lambda control Active
- Driving with large and small valve lift
2010 Porsche Cayman S (987) F6-3.4L Page 180
Possible fault causes
- Oxygen sensors ahead of cat. conv. interchanged
P0040
Diagnosis information - DME (DFI)
Oxygen sensors ahead of catalytic converter interchanged
NOTE:
Do not use contact spray on the oxygen sensor's plug connections as this will result in irreparable damage to the lines (blockage of reference
air duct).
- Do not interchange the oxygen sensor ahead of catalytic converter with the sensor behind the catalytic converter as this will result in
implausible fault entries.
Diagnostic conditions
- Perform short tests [Oxygen sensor active test]
or (if no short test is possible):
- Lambda control Active
- Driving with large and small valve lift
2010 Porsche Cayman S (987) F6-3.4L Page 180
Possible fault causes
- Oxygen sensors ahead of cat. conv. interchanged