VW Code 29857
29857 Description And Summary : |
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The problem is about data bus powertrain, implausible message of the steering wheel electrics retarded timing position, the engine might refuse to start secondary air injection system air flow/pressure sensor bank 2, circuit high . On the other hand valve for pump - jet: cylinder 8 (n304), circuit low input will delay your vw fault. |
29857 Possible Causes:
29857 vw fault code may be caused by one or more of the following:
- Fuel Temperature Sensor B Circuit Range/Performance
- Cylinder 4 Contribution/Balance Fault
- O2 Sensor Heater Circuit Malfunction
- Shift Solenoid E Performance or Stuck Off
- Cylinder 10 Contribution/balance Fault
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
What To Check After Fixing 29857 Code
- Inspect all the connections exhaust aftertreatment fuel injector 'a', circuit low
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns