P2251
O2 Sensor Negative Current Control Circuit/Open Bank 1 Sensor 1.
- Generic
- Powertrain
- Generic code
How this code is built
- P
- SystemPowertrain
- 2
- Defined bySAE, the same on every car
- 2
- AreaFuel and air metering (injector circuit)
- 51
- FaultThe specific fault in that area
Guide
Writing the guide for P2251. The first open of a code takes up to a minute.