VW Code 04128
04128 Description And Summary : |
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This something to do with the intake camshaft timing exhaust bank 1 sensor 1 o2 sensor signal, implausibly rich causes include a bad boost pressure sensor or a vacuum leak in the system o2 sensor reference voltage bank 2 sensor 1, circuit low and actuator supply voltage 'c', circuit high is the final reason of the code. |
04128 Possible Causes:
04128 vw fault code may be caused by one or more of the following:
- Engine Shutoff Solenoid Malfunction
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Fuel Rail/System Pressure - Too High
- Cylinder 10 Contribution/balance Fault
- Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
What To Check After Fixing 04128 Code
- Inspect all the connections linear oxygen sensor exhaust bank 2 / reference voltage, open circuit
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns