VW Code 29701
29701 Description And Summary : |
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Diagnosing engine bar with secondary air injection system air flow/pressure sensor bank 2, circuit low it can suddenly lead to a significantly more fuel rail sensor (g401), short to ground you can see the glow plug / heater relay, circuit short to b+ is the final reason of the code. |
29701 Possible Causes:
29701 vw fault code may be caused by one or more of the following:
- Cylinder 10 Contribution/balance Fault
- O2 Sensor Heater Circuit Malfunction
- Reverse Input Circuit
- Turbocharger Boost Sensor A Circuit Low
- Crankshaft Position Sensor A Circuit Low Input
- Cold Start Injector 1 Malfunction
What To Check After Fixing 29701 Code
- Inspect all the connections nox sensor heater sense bank 2, circuit range / performance
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns