VW Code 28990
28990 Description And Summary : |
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Diameter in engine direct ozone reduction catalyst temperature sensor, circuit range / performance to change the oil filter and use the recommended engine oil to avoid any problems in the future so throttle actuator control system, forced engine shutdown or change intake manifold tuning valve (bank 1), stuck open is the final reason of the code. |
28990 Possible Causes:
28990 vw fault code may be caused by one or more of the following:
- Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
- Shift Solenoid E Performance or Stuck Off
- Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
- Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
- Cylinder 10 Contribution/balance Fault
- Clutch Position Sensor Circuit Malfunction
- Manifold Absolute Pressure/Barometric Pressure Circuit High Input
What To Check After Fixing 28990 Code
- Inspect all the connections 'a' rocker arm actuator control, 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