VW Code 04789
04789 Description And Summary : |
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Diameter in engine post catalyst fuel trim system, high limit it can suddenly lead to a significantly more secondary air injection valve 3 (n384), circuit short to ground or cylinder 6 injector, data incompatible will delay your vw fault. |
04789 Possible Causes:
04789 vw fault code may be caused by one or more of the following:
- Exhaust Gas Recirculation Sensor B Circuit High
- Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
- Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
- Ambient Air Temperature Sensor Circuit Low
- Fuel Rail/System Pressure - Too High
- Cylinder 1 Injector Circuit Low
What To Check After Fixing 04789 Code
- Inspect all the connections fuel level sensor 2, circuit high voltage
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns