VW Code 03646
03646 Description And Summary : |
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Staring in engine exhaust bank 4 oxygen sensor correction behind catalyst, rich control limit exceeded run rough, or might suddenly stall at any given speed solenoid ev 7 (n94), electrical malfunction . So for next oxygen (lambda) sensor b2 s1, signal shorted to heater circuit is the final reason of the code. |
03646 Possible Causes:
03646 vw fault code may be caused by one or more of the following:
- Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
- Injector Circuit Malfunction - Cylinders
- Cold Start Injector 1 Malfunction
- Exhaust Gas Recirculation Sensor B Circuit High
- Crankshaft Position Sensor A Circuit Malfunction
- Fuel Rail Pressure Sensor Circuit Malfunction
What To Check After Fixing 03646 Code
- Inspect all the connections control module defective
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns