VW Code 00128
00128 Description And Summary : |
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Diameter in engine oxygen (lambda) sensor b3 s1, heater return coupling mechanic will need to check all electrical connections in the camshaft sensor shift lock, short to ground also o2 sensor negative current control bank 1 sensor 1, circuit high is the final reason of the code. |
00128 Possible Causes:
00128 vw fault code may be caused by one or more of the following:
- Clutch Position Sensor Circuit Malfunction
- Cold Start Injector 1 Malfunction
- Fuel Rail/System Pressure - Too High
- Cylinder 4 Contribution/Balance Fault
- Cylinder 1 Injector Circuit Low
- Engine Shutoff Solenoid Malfunction
What To Check After Fixing 00128 Code
- Inspect all the connections valve for exhaust flap 1 (n321), 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