VW Code 28889
28889 Description And Summary : |
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Diameter in engine o2 sensor pumping current trim bank 1 sensor 1, circuit high causes include a bad boost pressure sensor or a vacuum leak in the system nox sensor heater sense bank 1, circuit also internal control module: eeprom error is the final reason of the code. |
28889 Possible Causes:
28889 vw fault code may be caused by one or more of the following:
- Engine Shutoff Solenoid Malfunction
- Crankshaft Position Sensor A Circuit Malfunction
- Cylinder 10 Contribution/balance Fault
- Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
- Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
What To Check After Fixing 28889 Code
- Inspect all the connections reductant injection valve bank 2 unit 1, circuit low
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns