Start a new topic

GM service bay test

Has anyone been successful with service bay tests? 35 minutes holding at 1800 rpm. Says Engine running EVAP test active. Evap vent solenoid Command is warning level 6. The test does not seem to.complete. All other independent tests for purge, vent solenoid FTap all test good within parameters. No codes are setting. We have put over 200 miles on this thing with at least 12 cold start followed by miles of driving, park and idle then 17+ hours of cool down.
Login or Signup to post a comment