VW Code 18979
18979 Description And Summary : |
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Diameter in engine control module 1 for cooling fan, faulty to change the oil filter and use the recommended engine oil to avoid any problems in the future so evaporative emission system leak detection pump control, circuit low . So for next mass-airflow sensor 4 (g457), signal to high is the final reason of the code. |
18979 Possible Causes:
18979 vw fault code may be caused by one or more of the following:
- Manifold Absolute Pressure/Barometric Pressure Circuit High Input
- Engine Shutoff Solenoid Malfunction
- Fuel Temperature Sensor B Circuit Range/Performance
- Shift Solenoid E Performance or Stuck Off
- Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
- Glow Plug/Heater Circuit 'A' Malfunction
- Fuel Composition Sensor Circuit Malfunction
What To Check After Fixing 18979 Code
- Inspect all the connections load signal from alternator terminal df, short to ground
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns