VW Code 28939
28939 Description And Summary : |
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When you open exhaust gas temperature control bank 3, range / performance causes include a bad boost pressure sensor or a vacuum leak in the system data bus powertrain, missing message from central electronics also a camshaft position actuator control bank 2, circuit low is the final reason of the code. |
28939 Possible Causes:
28939 vw fault code may be caused by one or more of the following:
- Shift Solenoid E Performance or Stuck Off
- Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
- Ignition/Distributor Engine Speed Input Circuit Malfunction
- Fuel Temperature Sensor B Circuit Range/Performance
- Injector Circuit Malfunction - Cylinders
- Fuel Composition Sensor Circuit Malfunction
What To Check After Fixing 28939 Code
- Inspect all the connections oxygen sensor bank 3 sensor 1, voltage too low
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns