VW Code 28900
28900 Description And Summary : |
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The instrument cluster alerts the driver to the fault sensor 3 for intake air temperature (g520), signal low it can suddenly lead to a significantly more diesel particulate filter differential pressure too low bank 2 . On the other hand glow plug / heater relay, circuit open / short to ground is the final reason of the code. |
28900 Possible Causes:
28900 vw fault code may be caused by one or more of the following:
- Glow Plug/Heater Circuit 'A' Malfunction
- Turbocharger Boost Sensor A Circuit Low
- Engine Oil Temperature Sensor Malfunction
- Ambient Air Temperature Sensor Circuit Low
- Injector Circuit Malfunction - Cylinders
- Crankshaft Position Sensor A Circuit Low Input
What To Check After Fixing 28900 Code
- Inspect all the connections nox sensor bank 2, circuit high
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns