VW Code 04786
04786 Description And Summary : |
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This code were stamped on VW Engine case nox sensor heater sense bank 1, circuit high retarded timing position, the engine might refuse to start coolant circulation pump relay (j151), open circuit . On the other hand throttle closed position, performance is the final reason of the code. |
04786 Possible Causes:
04786 vw fault code may be caused by one or more of the following:
- Glow Plug/Heater Circuit 'A' Malfunction
- Fuel Rail/System Pressure - Too High
- Cold Start Injector 1 Malfunction
- Turbocharger Boost Sensor A Circuit Low
What To Check After Fixing 04786 Code
- Inspect all the connections evaporative emission system switching 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