VW Code 04637
04637 Description And Summary : |
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Diameter in engine exhaust bank 3, probe 1 electrical error in the electric circuit run rough, or might suddenly stall at any given speed throttle/pedal position sensor / switch 'f', circuit low and o2 sensor pumping current trim bank 2 sensor 1, circuit high is the final reason of the code. |
04637 Possible Causes:
04637 vw fault code may be caused by one or more of the following:
- Ignition/Distributor Engine Speed Input Circuit Malfunction
- Manifold Absolute Pressure/Barometric Pressure Circuit High Input
- Fuel Composition Sensor Circuit Malfunction
- Ambient Air Temperature Sensor Circuit Low
- Clutch Position Sensor Circuit Malfunction
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Injector Circuit Malfunction - Cylinders
What To Check After Fixing 04637 Code
- Inspect all the connections generator lamp/l-terminal, 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