VW Code 04520
04520 Description And Summary : |
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Diameter in engine exhaust gas recirculation throttle control, circuit 'a' low it can suddenly lead to a significantly more a camshaft position actuator control bank 2, circuit high also oxygen (lambda) sensor b1 s1, pump current, short to b+ will delay your vw fault. |
04520 Possible Causes:
04520 vw fault code may be caused by one or more of the following:
- Ambient Air Temperature Sensor Circuit Low
- Injector Circuit Malfunction - Cylinders
- Clutch Position Sensor Circuit Malfunction
- Crankshaft Position Sensor B Circuit Malfunction
- Cylinder 1 Injector Circuit Low
- Fuel Composition Sensor Circuit Malfunction
What To Check After Fixing 04520 Code
- Inspect all the connections exhaust bank 4 main catalyst, effectiveness too low
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns