Purge Solenoid Valve (PSV)
- Measure resistance between PSV connector terminals (component side). Resistance should be 24-28 ohms at 68°F (20°C). If resistance is not as specified, replace PSV.
- Remove PSV. PSV should be closed. Blow air into port "A" and verify air does not escape from port "B". See Fig 1. Open PSV by jumpering one PSV terminal to battery positive terminal. Jumper other PSV terminal to battery negative terminal. Blow air into port "A" and verify air escapes from port "B". If air escapes from port "B" when PSV is closed and/or does not escape when PSV is open, replace PSV.
Courtesy of KIA MOTORS AMERICA, INC.