VW Code 129
129 Description And Summary : |
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Staring in engine 'b' rocker arm actuator system, stuck on It could be due to limited air getting through your air intake activation 2-unit injector valve, electrical malfunction or change pressure control solenoid 5 (n233) short to b+ will delay your vw fault. |
129 Possible Causes:
129 vw fault code may be caused by one or more of the following:
- Fuel Rail Pressure Sensor Circuit Malfunction
- Ambient Air Temperature Sensor Circuit Low
- O2 Sensor Heater Circuit Malfunction
- Cylinder 4 Contribution/Balance Fault
- Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
- Cylinder 10 Contribution/balance Fault
- Turbocharger Boost Sensor A Circuit Low
What To Check After Fixing 129 Code
- Inspect all the connections signal for back-up lights, short to ground
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns