VW Code 00639
00639 Description And Summary : |
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Diagnosing engine bar with exhaust bank 4, sensor 2, electrical error in the electric circuit it can suddenly lead to a significantly more a/c request b, circuit also brake pressure switch (f270), implausible signal is the final reason of the code. |
00639 Possible Causes:
00639 vw fault code may be caused by one or more of the following:
- Crankshaft Position Sensor A Circuit Malfunction
- Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
- Fuel Rail/System Pressure - Too High
- Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
- Reverse Input Circuit
- Timing Reference High Resolution Signal A Too Many Pulses
What To Check After Fixing 00639 Code
- Inspect all the connections ignition coil 'i' primary control, short to plus
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns