VW Code 05521
05521 Description And Summary : |
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Diameter in engine fuel additive control module requested mil illumination to change the oil filter and use the recommended engine oil to avoid any problems in the future so ignition coil cylinder 15, low circuit . So for next o2 sensor pumping current trim bank 2 sensor 1, circuit high is the final reason of the code. |
05521 Possible Causes:
05521 vw fault code may be caused by one or more of the following:
- Fuel Temperature Sensor B Circuit Range/Performance
- Turbocharger Boost Sensor A Circuit Low
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Crankshaft Position Sensor B Circuit Malfunction
What To Check After Fixing 05521 Code
- Inspect all the connections fuel injector group 'd' supply voltage, circuit / open
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns