Glossary “EONV” Definition:
Engine Off Natural Vacuum, GM’s new ODB-II compliant scheme monitors EVAP system pressures while the engine is off, hence the term “Engine Off Natural Vacuum”. Introduced in 2003.
Glossary “EONV” Definition:
Engine Off Natural Vacuum, GM’s new ODB-II compliant scheme monitors EVAP system pressures while the engine is off, hence the term “Engine Off Natural Vacuum”. Introduced in 2003.