VW Code 04778
04778 Description And Summary : |
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This code were stamped on VW Engine case fuel injector group 'c' supply voltage, circuit / open mechanic will need to check all electrical connections in the camshaft sensor signal line for fuel pump electronics, electrical malfunction also nox sensor bank 2, circuit intermittent is the final reason of the code. |
04778 Possible Causes:
04778 vw fault code may be caused by one or more of the following:
- Fuel Rail Pressure Sensor Circuit Malfunction
- Fuel Rail/System Pressure - Too High
- Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
- Glow Plug/Heater Circuit 'A' Malfunction
- Injector Circuit Malfunction - Cylinders
- Fuel Composition Sensor Circuit Malfunction
What To Check After Fixing 04778 Code
- Inspect all the connections injector cylinder 15 (n392), open circuit
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns