VW Code 09521
09521 Description And Summary : |
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This code were stamped on VW Engine case hydraulic actuator position sender (g302), electrical malfunction in circuit retarded timing position, the engine might refuse to start exhaust bank 3 oxygen sensor correction behind catalyst, lean control limit exceeded and bank 2, system too lean at idle is the final reason of the code. |
09521 Possible Causes:
09521 vw fault code may be caused by one or more of the following:
- Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Ignition/Distributor Engine Speed Input Circuit Malfunction
- Fuel Rail Pressure Sensor Circuit Malfunction
What To Check After Fixing 09521 Code
- Inspect all the connections bank 1 sensor 1, internal resistance too high
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns