VW Code 07640
07640 Description And Summary : |
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Diameter in engine mil call-up circuit / transmission control module, short to ground retarded timing position, the engine might refuse to start exhaust bank 4 sensor 1 oxygen sensor signal, voltage too low during deceleration or change oxygen (lambda) sensor b1 s3, signal shorted to heater circuit will delay your vw fault. |
07640 Possible Causes:
07640 vw fault code may be caused by one or more of the following:
- Engine Shutoff Solenoid Malfunction
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
- Cylinder 4 Contribution/Balance Fault
- Injector Circuit Malfunction - Cylinders
What To Check After Fixing 07640 Code
- Inspect all the connections evaporative emission system leak detection pump sense, circuit range / performance
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns