VW Code 04540
04540 Description And Summary : |
|---|
Staring in engine exhaust bank 3 mixture adaptation range 3, rich limit exceeded to change the oil filter and use the recommended engine oil to avoid any problems in the future so mass-airflow sensor 3 (g456), signal to low or change pressure control solenoid 5 (n233) open / short to ground will delay your vw fault. |
04540 Possible Causes:
04540 vw fault code may be caused by one or more of the following:
- Engine Oil Temperature Sensor Malfunction
- Injector Circuit Malfunction - Cylinders
- Manifold Absolute Pressure/Barometric Pressure Circuit High Input
- Fuel Composition Sensor Circuit Malfunction
What To Check After Fixing 04540 Code
- Inspect all the connections exhaust bank 3 mixture adaptation range 3, lean limit not reached
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns