P0041
P0041
Diagnosis information - DME V8 DFI
Oxygen sensors behind 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).
NOTE: 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.
NOTE:
During diagnostic procedures, the mixture on one bank is enriched briefly, while the mixture on the other bank is made more lean.
If the oxygen sensor behind the catalytic converter on the enriched bank indicates weakening and the oxygen sensor behind the catalytic converter on
the weakened bank indicates enrichment, then this fault is entered.
Diagnostic conditions
- Short test
or:
- Relatively long drive in various operating states
- Diagnosis >Electrical fault of oxygen sensor behind catalytic converter [or] Lambda correction behind catalytic converter< must have taken
place.
Possible fault causes
- Oxygen sensors behind catalytic converter interchanged (i.e. sensor of bank 1 is in exhaust branch of bank 2 and vice versa).