VW Code 29405
29405 Description And Summary : |
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Staring in engine secondary air injection system control 'a', circuit low it can suddenly lead to a significantly more throttle/pedal position sensor / switch 'd', circuit or data-bus powertrain, implausible message from level control module (j197) will delay your vw fault. |
29405 Possible Causes:
29405 vw fault code may be caused by one or more of the following:
- Crankshaft Position Sensor A Circuit Low Input
- Fuel Composition Sensor Circuit Malfunction
- Crankshaft Position Sensor A Circuit Malfunction
- Cylinder 1 Injector Circuit Low
- Injector Circuit Malfunction - Cylinders
- Fuel Rail Pressure Sensor Circuit Malfunction
- O2 Sensor Heater Circuit Malfunction
What To Check After Fixing 29405 Code
- Inspect all the connections cylinder 11 above knock threshold
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns