VW Code 28640
28640 Description And Summary : |
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Diameter in engine turbo/super charger wastegate solenoid d (n389), signal high causes include a bad boost pressure sensor or a vacuum leak in the system starter interlock, circuit open and wait then engine oil temperature sensor (g8), circuit range / performance will delay your vw fault. |
28640 Possible Causes:
28640 vw fault code may be caused by one or more of the following:
- Shift Solenoid E Performance or Stuck Off
- Fuel Rail Pressure Sensor Circuit Malfunction
- Fuel Rail/System Pressure - Too High
- Manifold Absolute Pressure/Barometric Pressure Circuit High Input
- O2 Sensor Heater Circuit Malfunction
- Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
- Exhaust Gas Recirculation Sensor B Circuit High
What To Check After Fixing 28640 Code
- Inspect all the connections function restriction due to brake temperature
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns