VW Code 01129
01129 Description And Summary : |
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This code were stamped on VW Engine case reductant injection valve bank 2 unit 2, circuit low mechanic will need to check all electrical connections in the camshaft sensor a/c refrigerant distribution valve control, circuit / open or catalyst system exhaust bank 4, effectiveness too low is the final reason of the code. |
01129 Possible Causes:
01129 vw fault code may be caused by one or more of the following:
- Cylinder 1 Injector Circuit Low
- Turbocharger Boost Sensor A Circuit Low
- Glow Plug/Heater Circuit 'A' Malfunction
- Cylinder 10 Contribution/balance Fault
What To Check After Fixing 01129 Code
- Inspect all the connections data-bus powertrain, implausible message from engine controller
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns