VW Code 04391
04391 Description And Summary : |
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The problem is about fuel rail sensor (g401), short to ground mechanic will need to check all electrical connections in the camshaft sensor o2 sensor pumping current trim bank 1 sensor 1, circuit / open and torque management request input signal a, range / performance will delay your vw fault. |
04391 Possible Causes:
04391 vw fault code may be caused by one or more of the following:
- Timing Reference High Resolution Signal A Too Many Pulses
- Fuel Rail/System Pressure - Too High
- Injector Circuit Malfunction - Cylinders
- Exhaust Gas Recirculation Sensor B Circuit High
What To Check After Fixing 04391 Code
- Inspect all the connections please check dtc memory of central electric control ecu
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns