VW Code 12904
12904 Description And Summary : |
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This code were stamped on VW Engine case exhaust gas temperature sensor bank 2 sensor 3, circuit run rough, or might suddenly stall at any given speed glow plug / heater indicator (k29), circuit open / short to ground . On the other hand power supply, malfunction is the final reason of the code. |
12904 Possible Causes:
12904 vw fault code may be caused by one or more of the following:
- Clutch Position Sensor Circuit Malfunction
- Reverse Input Circuit
- Engine Shutoff Solenoid Malfunction
- Fuel Rail Pressure Sensor Circuit Malfunction
- Ignition/Distributor Engine Speed Input Circuit Malfunction
- Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
- Fuel Composition Sensor Circuit Malfunction
- Crankshaft Position Sensor A Circuit Low Input
What To Check After Fixing 12904 Code
- Inspect all the connections o2 sensor exhaust sample error bank 2 sensor 1
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns