P2A00 Fuel Trim Interrupted (Open Loop)

P2A00

Fuel trim interrupted (open loop)

NOTE:
- The DME has detected an implausible temperature range for the O2 sensor
- or a vehicle voltage > 16 V.
- Because fuel trim is interrupted when this happens, the DME stores this fault as information.
- The exact fault cause is stored as an additional P code if necessary.

Diagnostic conditions
- Engine running

Possible fault causes
- Vehicle voltage > 16 V
- Other electrical faults of the O2 sensor upstream