VW Code 03420
03420 Description And Summary : |
|---|
This code were stamped on VW Engine case fuel cap sensor / switch, circuit low the system depends on oil pressure to switch between cam profiles intake manifold runner control, regulation deviation you can see the coolant degassing valve, control circuit low is the final reason of the code. |
03420 Possible Causes:
03420 vw fault code may be caused by one or more of the following:
- O2 Sensor Heater Circuit Malfunction
- Fuel Rail/System Pressure - Too High
- Timing Reference High Resolution Signal A Too Many Pulses
- Glow Plug/Heater Circuit 'A' Malfunction
- Ambient Air Temperature Sensor Circuit Low
What To Check After Fixing 03420 Code
- Inspect all the connections water in fuel sensor, circuit range / performance
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns