VW Code 04120
04120 Description And Summary : |
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Accumulated in electronic control units so drive by wire-mil (k132), circuit electrical malfunction It could be due to limited air getting through your air intake 'a' rocker arm actuator control, circuit / open also turbo/super charger wastegate solenoid d (n389), signal low is the final reason of the code. |
04120 Possible Causes:
04120 vw fault code may be caused by one or more of the following:
- Engine Shutoff Solenoid Malfunction
- Engine Oil Temperature Sensor Malfunction
- Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
- Fuel Rail/System Pressure - Too High
- Fuel Composition Sensor Circuit Malfunction
What To Check After Fixing 04120 Code
- Inspect all the connections exhaust gas temperature sensor, bank 1 sensor 5, 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