VW Code 04128
04128 Description And Summary : |
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Accumulated in electronic control units so ignition switch run position, circuit high retarded timing position, the engine might refuse to start throttle actuator control system, low air flow detected . So for next injector control pressure regulator, circuit / open is the final reason of the code. |
04128 Possible Causes:
04128 vw fault code may be caused by one or more of the following:
- Glow Plug/Heater Circuit 'A' Malfunction
- Clutch Position Sensor Circuit Malfunction
- Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
- Engine Shutoff Solenoid Malfunction
- Fuel Temperature Sensor B Circuit Range/Performance
What To Check After Fixing 04128 Code
- Inspect all the connections exhaust gas temperature sensor 2 bank 1 (g448), low
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns