P2097
P2097Diagnosis information - Control unit DME (DFI)
Lambda correction Behind catalytic converter Bank 1 - Control limit exceeded (too rich)
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
- --> Perform all short tests in sequence (without Tank tightness).
or
- steady driving > 20 Minute(s), at:
- approx. 80 km/h
- in the highest gear
- Lambda control (Behind catalytic converter) Active
- none of the following faults stored P2270, P2271, P0041
Possible fault causes
- Exhaust system leaks between Oxygen sensor in front of catalytic converter and Oxygen sensor behind catalytic converter Bank 1
- Fault Camshaft adjustment
- Fault Valve lift control
- Mechanical fault Valve drive
- Oxygen sensor in front of catalytic converter Bank 1 Faulty (aged)
Fault setting condition(s)
- Adaptation limit (4 %) exceeded