VW Code 28903
28903 Description And Summary : |
|---|
The instrument cluster alerts the driver to the fault relays for coolant additive pump (j496), short to ground run rough, or might suddenly stall at any given speed o2 sensor negative current control bank 2 sensor 1, circuit low also reductant injection valve bank 1 unit 2, circuit low will delay your vw fault. |
28903 Possible Causes:
28903 vw fault code may be caused by one or more of the following:
- Cylinder 10 Contribution/balance Fault
- Clutch Position Sensor Circuit Malfunction
- Ignition/Distributor Engine Speed Input Circuit Malfunction
- Cold Start Injector 1 Malfunction
- Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
- Exhaust Gas Recirculation Sensor B Circuit High
What To Check After Fixing 28903 Code
- Inspect all the connections secondary air injection system control 'b', 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