How to pinpoint the fault?

Question

How should we go about diagnosing the exact reason for the problem? And where would the solenoid valve be typically located in a Volkswagen?

Answer 1

Hi there,

This code points to an issue with the purge control solenoid. This means either the solenoid itself is faulty, or wiring. Here is some more info for you.

P0444 VOLKSWAGEN - EVAP System Purge Control Valve Circuit Open

Read more: https://www.autocodes.com/p0444_volkswagen.html