VW Code 07903
07903 Description And Summary : |
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This something to do with the intake camshaft timing secondary air injection system control 'b', circuit high it can suddenly lead to a significantly more kick down switch malfunction also data bus powertrain, missing messages is the final reason of the code. |
07903 Possible Causes:
07903 vw fault code may be caused by one or more of the following:
- Cylinder 4 Contribution/Balance Fault
- Crankshaft Position Sensor A Circuit Malfunction
- Fuel Rail Pressure Sensor Circuit Malfunction
- Injector Circuit Malfunction - Cylinders
- Cold Start Injector 1 Malfunction
- Fuel Composition Sensor Circuit Malfunction
What To Check After Fixing 07903 Code
- Inspect all the connections ecm/pcm power input, signal high
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns