VW Code 03934
03934 Description And Summary : |
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This something to do with the intake camshaft timing fuel pump "b" control, circuit low it can suddenly lead to a significantly more fuel rail sensor (g401), short to b+ also valve for pump - jet, cylinder 4 (n243), electrical malfunction is the final reason of the code. |
03934 Possible Causes:
03934 vw fault code may be caused by one or more of the following:
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
- Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Crankshaft Position Sensor A Circuit Low Input
- Fuel Rail Pressure Sensor Circuit Malfunction
- O2 Sensor Heater Circuit Malfunction
What To Check After Fixing 03934 Code
- Inspect all the connections nox sensor heater sense bank 1, circuit low
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns