VW Code 04789
04789 Description And Summary : |
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Diagnosing engine bar with valve for pump - jet: cylinder 8 (n304), range / performance run rough, or might suddenly stall at any given speed reductant temperature sensor, circuit intermittent also water in fuel sensor, circuit intermittent is the final reason of the code. |
04789 Possible Causes:
04789 vw fault code may be caused by one or more of the following:
- Cold Start Injector 1 Malfunction
- Crankshaft Position Sensor B Circuit Malfunction
- Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
- O2 Sensor Heater Circuit Malfunction
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Shift Solenoid E Performance or Stuck Off
- Fuel Rail Pressure Sensor Circuit Malfunction
What To Check After Fixing 04789 Code
- Inspect all the connections oxygen sensor b1 s1: heating circuit regulation at upper limit, lower limit exceeded
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns