VW Code 04090
04090 Description And Summary : |
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When you open throttle actuator control system, high air flow detected mechanic will need to check all electrical connections in the camshaft sensor data bus powertrain, missing message from control module level control or change ignition coil 'k' primary control, circuit low is the final reason of the code. |
04090 Possible Causes:
04090 vw fault code may be caused by one or more of the following:
- Reverse Input Circuit
- Ignition/Distributor Engine Speed Input Circuit Malfunction
- Exhaust Gas Recirculation Sensor B Circuit High
- Cylinder 1 Injector Circuit Low
What To Check After Fixing 04090 Code
- Inspect all the connections o2 sensor pumping current trim bank 2 sensor 1, 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