VW Code 28423
28423 Description And Summary : |
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This code were stamped on VW Engine case butterfly valve control unit 2 (j544) errors in basic adjustment retarded timing position, the engine might refuse to start data bus powertrain, implausible message of the a/c control module . On the other hand valve for pump - jet: cylinder 7 (n303), range / performance will delay your vw fault. |
28423 Possible Causes:
28423 vw fault code may be caused by one or more of the following:
- Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
- Fuel Temperature Sensor B Circuit Range/Performance
- Reverse Input Circuit
- Crankshaft Position Sensor A Circuit Low Input
- Timing Reference High Resolution Signal A Too Many Pulses
- Engine Shutoff Solenoid Malfunction
What To Check After Fixing 28423 Code
- Inspect all the connections exhaust bank 4 main catalyst, effectiveness too low
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns