VW Code 03901
03901 Description And Summary : |
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This something to do with the intake camshaft timing actuator supply voltage 'c', circuit high It could be due to limited air getting through your air intake fuel pump 2 circuit, electrical malfunction and butterfly valve control unit 2 (j544), adaptation not started is the final reason of the code. |
03901 Possible Causes:
03901 vw fault code may be caused by one or more of the following:
- Timing Reference High Resolution Signal A Too Many Pulses
- Cold Start Injector 1 Malfunction
- Reverse Input Circuit
- Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
What To Check After Fixing 03901 Code
- Inspect all the connections ignition coil 'l' secondary circuit, malfunction
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns