There is a delicate balance involved in controlling emissions and allowing the engine to reach peak performance. The EVAP system was invented to help with this effort. Although the EVAP system is not critical to basic vehicle functionality, emissions regulations dictate it must function.
The P0444 check engine light code is one of the many EVAP-related codes that are logged when a component fails. In this guide, we will delve into why this trouble code occurs. Including symptoms, causes, and diagnostic techniques.