VW Code 18994
18994 Description And Summary : |
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Diameter in engine evaporative emission system leak detection pump sense, circuit intermittent / erratic It could be due to limited air getting through your air intake control unit programming, programming not finished . So for next ignition coil 'g' primary control, circuit low is the final reason of the code. |
18994 Possible Causes:
18994 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 A Circuit Malfunction
- Fuel Temperature Sensor B Circuit Range/Performance
- Glow Plug/Heater Circuit 'A' Malfunction
- Exhaust Gas Recirculation Sensor B Circuit High
- Fuel Composition Sensor Circuit Malfunction
What To Check After Fixing 18994 Code
- Inspect all the connections turbocharger / supercharger boost pressure not detected - mechanical
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns