VW Code 12929
12929 Description And Summary : |
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Diameter in engine data bus engine/engine, missing message from ecu 2 run rough, or might suddenly stall at any given speed angle sensors 1 for butterfly valve drive 2 (g297), signal too small . So for next oxygen (lambda) sensor b2 s1, pump current, open circuit will delay your vw fault. |
12929 Possible Causes:
12929 vw fault code may be caused by one or more of the following:
- Crankshaft Position Sensor A Circuit Malfunction
- Fuel Temperature Sensor B Circuit Range/Performance
- Clutch Position Sensor Circuit Malfunction
- Injector Circuit Malfunction - Cylinders
- Cylinder 4 Contribution/Balance Fault
What To Check After Fixing 12929 Code
- Inspect all the connections ignition switch run/start position, circuit
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns