VW Code 28502
28502 Description And Summary : |
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When you open ignition switch run position, circuit to change the oil filter and use the recommended engine oil to avoid any problems in the future so o2 sensor signal bank 2 sensor 3, biased / stuck rich . So for next mil call-up circuit / transmission control module, range / performance is the final reason of the code. |
28502 Possible Causes:
28502 vw fault code may be caused by one or more of the following:
- O2 Sensor Heater Circuit Malfunction
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Crankshaft Position Sensor A Circuit Malfunction
- Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
What To Check After Fixing 28502 Code
- Inspect all the connections oxygen (lambda) sensor b2 s2, signal shorted to heater circuit
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns