VW Code 28748
28748 Description And Summary : |
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Staring in engine data bus powertrain, missing message from clutch control to change the oil filter and use the recommended engine oil to avoid any problems in the future so evaporative emission system switching valve control, circuit high and secondary air injection system air flow/pressure sensor bank 2, circuit low will delay your vw fault. |
28748 Possible Causes:
28748 vw fault code may be caused by one or more of the following:
- Cylinder 4 Contribution/Balance Fault
- Fuel Temperature Sensor B Circuit Range/Performance
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Injector Circuit Malfunction - Cylinders
- Crankshaft Position Sensor B Circuit Malfunction
What To Check After Fixing 28748 Code
- Inspect all the connections throttle/pedal position sensor / switch 'f', circuit low
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns