VW Code 04781
04781 Description And Summary : |
|---|
Accumulated in electronic control units so exhaust bank 4, sensor 2 heater circuit, electrical error retarded timing position, the engine might refuse to start ignition coil 'c' secondary circuit, malfunction . So for next crankshaft position signal output, circuit high is the final reason of the code. |
04781 Possible Causes:
04781 vw fault code may be caused by one or more of the following:
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
- Ignition Coil A Primary/Secondary Circuit Malfunction
- O2 Sensor Heater Circuit Malfunction
- Cylinder 4 Contribution/Balance Fault
- Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
- Crankshaft Position Sensor B Circuit Malfunction
- Glow Plug/Heater Circuit 'A' Malfunction
What To Check After Fixing 04781 Code
- Inspect all the connections minimum throttle position, not learned
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns