VW Code 03789
03789 Description And Summary : |
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Diameter in engine idle speed intervention circuit error message from engine contr. retarded timing position, the engine might refuse to start fuel pressure regulator valve (n276), mechanical malfunction or a/c refrigerant pressure sensor 'b', circuit will delay your vw fault. |
03789 Possible Causes:
03789 vw fault code may be caused by one or more of the following:
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Crankshaft Position Sensor A Circuit Malfunction
- O2 Sensor Heater Circuit Malfunction
- Reverse Input Circuit
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
What To Check After Fixing 03789 Code
- Inspect all the connections exhaust gas recirculation cooling valve control, circuit / open
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns