VW Code 18640
18640 Description And Summary : |
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The problem is about evaporative emission system leak detection pump sense, circuit low causes include a bad boost pressure sensor or a vacuum leak in the system linear oxygen sensor exhaust bank 2 / pump current, open circuit you can see the data bus powertrain, missing message from clutch control will delay your vw fault. |
18640 Possible Causes:
18640 vw fault code may be caused by one or more of the following:
- Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
- Crankshaft Position Sensor B Circuit Malfunction
- Cylinder 1 Injector Circuit Low
- Timing Reference High Resolution Signal A Too Many Pulses
- Turbocharger Boost Sensor A Circuit Low
- Engine Shutoff Solenoid Malfunction
What To Check After Fixing 18640 Code
- Inspect all the connections power supply (b+) terminal 15, low voltage
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns