VW Code 29857
29857 Description And Summary : |
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The problem is about exhaust pressure sensor to change the oil filter and use the recommended engine oil to avoid any problems in the future so glow plug / heater relay, circuit short to b+ or nox sensor bank 2, circuit high is the final reason of the code. |
29857 Possible Causes:
29857 vw fault code may be caused by one or more of the following:
- Exhaust Gas Recirculation Sensor B Circuit High
- Glow Plug/Heater Circuit 'A' Malfunction
- Manifold Absolute Pressure/Barometric Pressure Circuit High Input
- Fuel Rail/System Pressure - Too High
- Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
- Fuel Rail Pressure Sensor Circuit Malfunction
What To Check After Fixing 29857 Code
- Inspect all the connections secondary air injection system pump bank 1, stuck on
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns