VW Code 02639
02639 Description And Summary : |
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When you open valve for pump - jet: cylinder 11 (n307), regulation range exceeded it can suddenly lead to a significantly more engine coolant bypass valve, control circuit low also secondary air injection system air flow/pressure sensor bank 1, circuit is the final reason of the code. |
02639 Possible Causes:
02639 vw fault code may be caused by one or more of the following:
- Shift Solenoid E Performance or Stuck Off
- Reverse Input Circuit
- Fuel Temperature Sensor B Circuit Range/Performance
- Crankshaft Position Sensor A Circuit Low Input
- Cylinder 1 Injector Circuit Low
- Fuel Composition Sensor Circuit Malfunction
- O2 Sensor Heater Circuit Malfunction
What To Check After Fixing 02639 Code
- Inspect all the connections nox sensor bank 2, circuit
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns