VW Code 28808
28808 Description And Summary : |
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Staring in engine reductant injection air pump control, circuit high the system depends on oil pressure to switch between cam profiles o2 sensor signal bank 1 sensor 3, biased / stuck lean also data bus engine/engine, missing message from ecu 1 is the final reason of the code. |
28808 Possible Causes:
28808 vw fault code may be caused by one or more of the following:
- Fuel Temperature Sensor B Circuit Range/Performance
- Cylinder 4 Contribution/Balance Fault
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Timing Reference High Resolution Signal A Too Many Pulses
- O2 Sensor Heater Circuit Malfunction
- Fuel Rail/System Pressure - Too High
- Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
What To Check After Fixing 28808 Code
- Inspect all the connections relays for small amount of heat (j359), disconnected or 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