VW Code 12829
12829 Description And Summary : |
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Staring in engine post catalyst fuel trim system, high limit retarded timing position, the engine might refuse to start secondary air injection system air flow/pressure sensor bank 1, circuit intermittent / erratic . On the other hand reductant injection valve bank 2 unit 1, circuit / open will delay your vw fault. |
12829 Possible Causes:
12829 vw fault code may be caused by one or more of the following:
- Timing Reference High Resolution Signal A Too Many Pulses
- Cylinder 1 Injector Circuit Low
- Cylinder 10 Contribution/balance Fault
- Exhaust Gas Recirculation Sensor B Circuit High
- Cold Start Injector 1 Malfunction
- Ambient Air Temperature Sensor Circuit Low
What To Check After Fixing 12829 Code
- Inspect all the connections intake air heater "a", system performance
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns