VW Code 04977
04977 Description And Summary : |
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Diagnosing engine bar with exhaust bank 4, sensor 2 heater circuit, electrical error to change the oil filter and use the recommended engine oil to avoid any problems in the future so low pressure fuel system sensor (g410), circuit high . So for next cylinder 4 above knock threshold will delay your vw fault. |
04977 Possible Causes:
04977 vw fault code may be caused by one or more of the following:
- Glow Plug/Heater Circuit 'A' Malfunction
- Crankshaft Position Sensor B Circuit Malfunction
- Shift Solenoid E Performance or Stuck Off
- Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
- Engine Shutoff Solenoid Malfunction
What To Check After Fixing 04977 Code
- Inspect all the connections fuel injector group 'd' supply voltage, circuit high
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns