VW Code 28439
28439 Description And Summary : |
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Accumulated in electronic control units so reductant injection air pressure sensor 'a', circuit the system depends on oil pressure to switch between cam profiles transmission range display, circuit short to b+ . So for next transmission request torque reduction, implausible will delay your vw fault. |
28439 Possible Causes:
28439 vw fault code may be caused by one or more of the following:
- Shift Solenoid E Performance or Stuck Off
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Cylinder 1 Injector Circuit Low
- Fuel Rail/System Pressure - Too High
- Cylinder 4 Contribution/Balance Fault
- Injector Circuit Malfunction - Cylinders
- Turbocharger Boost Sensor A Circuit Low
What To Check After Fixing 28439 Code
- Inspect all the connections ignition switch accessory position, circuit
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns