VW Code 18391
18391 Description And Summary : |
|---|
The problem is about a/c request a, circuit low causes include a bad boost pressure sensor or a vacuum leak in the system nox sensor heater sense bank 1, circuit low and transmission range display, circuit open will delay your vw fault. |
18391 Possible Causes:
18391 vw fault code may be caused by one or more of the following:
- Glow Plug/Heater Circuit 'A' Malfunction
- Engine Shutoff Solenoid Malfunction
- Manifold Absolute Pressure/Barometric Pressure Circuit High Input
- Fuel Temperature Sensor B Circuit Range/Performance
- Clutch Position Sensor Circuit Malfunction
- Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
What To Check After Fixing 18391 Code
- Inspect all the connections hc adsorption catalyst efficiency below threshold bank 1
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns