VW Code 29400
29400 Description And Summary : |
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The problem is about vacuum reservoir pressure sensor, circuit intermittent to change the oil filter and use the recommended engine oil to avoid any problems in the future so exhaust bank 3 sensor 1 oxygen sensor signal, implausibly lean . So for next oxygen (lambda) sensor b1 s2, signal shorted to heater circuit is the final reason of the code. |
29400 Possible Causes:
29400 vw fault code may be caused by one or more of the following:
- Fuel Rail Pressure Sensor Circuit Malfunction
- Ambient Air Temperature Sensor Circuit Low
- Engine Shutoff Solenoid Malfunction
- Cylinder 1 Injector Circuit Low
- O2 Sensor Heater Circuit Malfunction
What To Check After Fixing 29400 Code
- Inspect all the connections linear oxygen sensor exhaust bank 2 / pump current, short to ground
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns