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Posted: 7/23/2009 4:43:44 AM EST
Link Posted: 7/23/2009 11:18:19 AM EST
Link Posted: 7/23/2009 1:56:53 PM EST
It may take up to 3 "Drives" by the computer to run evap tests. and as the above poster typed, some need to have many different things met before performing the test, and makeing a "Drive"
Link Posted: 7/23/2009 6:35:13 PM EST
Link Posted: 7/30/2009 8:29:31 PM EST
Don't know about other makes, but if it is an older Ford, here is what you need:

1) Long soak (like, 6 hours) to get tank temperature down
2) Start up and idle for several minutes
3) Drive steady for a few minutes while at around 25-50 mph
4) Stop and idle some more

This will usually exercise both the idle and cruise monitor.
Link Posted: 8/1/2009 9:32:02 PM EST
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