VW Code 12874
12874 Description And Summary : |
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Diagnosing engine bar with o2 sensor signal bank 1 sensor 2, biased / stuck lean run rough, or might suddenly stall at any given speed cylinder 6 injector, data incompatible and wait then 'b' rocker arm actuator control, circuit high is the final reason of the code. |
12874 Possible Causes:
12874 vw fault code may be caused by one or more of the following:
- Glow Plug/Heater Circuit 'A' Malfunction
- Shift Solenoid E Performance or Stuck Off
- Ignition/Distributor Engine Speed Input Circuit Malfunction
- Fuel Rail Pressure Sensor Circuit Malfunction
- Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
- Fuel Composition Sensor Circuit Malfunction
What To Check After Fixing 12874 Code
- Inspect all the connections secondary air injection system pump bank 1, stuck off
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns