P2414

P2414

Diagnostic information - DME (DFI)

Oxygen sensor upstream of catalytic converter bank 1 in air

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.

Diagnostic conditions
- Short drive > 10 seconds
- Lambda control active
- Vehicle not in overrun phase
- No fault entered for: Oxygen sensor(s) or Fuel/air mixture preparation

Possible fault causes
- Injection valve Mechanical fault / blocked
(e.g. due to chip in the fuel rail)
- Oxygen sensor ahead of catalytic converter, bank 1, not installed in exhaust stream
- Oxygen sensor in front of catalytic converter Bank 1 Faulty