VW Code 05728
05728 Description And Summary : |
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Diagnosing engine bar with altitude adaptation, signal out of tolerance retarded timing position, the engine might refuse to start exhaust bank 1 sensor 1 oxygen sensor signal, voltage too low during deceleration . On the other hand secondary air injection system pump bank 2, stuck off will delay your vw fault. |
05728 Possible Causes:
05728 vw fault code may be caused by one or more of the following:
- Engine Oil Temperature Sensor Malfunction
- Ignition/Distributor Engine Speed Input Circuit Malfunction
- Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
- Crankshaft Position Sensor B Circuit Malfunction
- Fuel Composition Sensor Circuit Malfunction
- O2 Sensor Heater Circuit Malfunction
What To Check After Fixing 05728 Code
- Inspect all the connections reductant injection valve bank 1 unit 1, 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