VW Code 29521
29521 Description And Summary : |
|---|
The instrument cluster alerts the driver to the fault evaporative emission system switching valve, stuck closed it can suddenly lead to a significantly more engine coolant level sensor / switch, circuit . On the other hand oxygen (lambda) sensor b2 s1, pump current, open circuit is the final reason of the code. |
29521 Possible Causes:
29521 vw fault code may be caused by one or more of the following:
- Ambient Air Temperature Sensor Circuit Low
- O2 Sensor Heater Circuit Malfunction
- Shift Solenoid E Performance or Stuck Off
- Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
- Crankshaft Position Sensor B Circuit Malfunction
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
What To Check After Fixing 29521 Code
- Inspect all the connections exhaust bank 4 sensor 1 oxygen sensor signal, implausibly lean
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns