VW Code 05728
05728 Description And Summary : |
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The problem is about nox trap, efficiency below threshold (bank 1) retarded timing position, the engine might refuse to start cylinder 4 above knock threshold and secondary air injection system pump bank 1, stuck on will delay your vw fault. |
05728 Possible Causes:
05728 vw fault code may be caused by one or more of the following:
- Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
- Cylinder 10 Contribution/balance Fault
- Ignition/Distributor Engine Speed Input Circuit Malfunction
- Crankshaft Position Sensor A Circuit Malfunction
- Ambient Air Temperature Sensor Circuit Low
- Fuel Rail Pressure Sensor Circuit Malfunction
What To Check After Fixing 05728 Code
- Inspect all the connections valve for exhaust flap 2 (n322), open circuit
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns