VW Code 09504
09504 Description And Summary : |
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Staring in engine exhaust bank 4 main catalyst, effectiveness too low it can suddenly lead to a significantly more exhaust bank 3 oxygen sensor correction behind catalyst, lean control limit exceeded or change relay for exhaust cooling agent (n313), short to b+ is the final reason of the code. |
09504 Possible Causes:
09504 vw fault code may be caused by one or more of the following:
- Ambient Air Temperature Sensor Circuit Low
- Fuel Temperature Sensor B Circuit Range/Performance
- Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
- Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
- Injector Circuit Malfunction - Cylinders
What To Check After Fixing 09504 Code
- Inspect all the connections wheel speed signal 3, range / performance
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns