VW Code 04946
04946 Description And Summary : |
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The problem is about bank 1, system too rich at idle retarded timing position, the engine might refuse to start evaporative emission system switching valve, performance / stuck open you can see the glow plug control module 2 (j703) to pcm communication circuit, range / performance is the final reason of the code. |
04946 Possible Causes:
04946 vw fault code may be caused by one or more of the following:
- Fuel Composition Sensor Circuit Malfunction
- O2 Sensor Heater Circuit Malfunction
- Engine Shutoff Solenoid Malfunction
- Crankshaft Position Sensor B Circuit Malfunction
- Cold Start Injector 1 Malfunction
What To Check After Fixing 04946 Code
- Inspect all the connections secondary air injection system control 'b', circuit high
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns