2010 ram laramie. I invertantly left the gas cap off and foundit about 2 hours later. All that time I never got a indicator light. I assume that is not normal. If it didn't pick that up what else is it not seeing?
Engine: 1998-2001 360ci (5.9L) Magnum V8 245hp(standard), 250hp(Sport package)
Rep Power: 7
As I understand it, the diagnostic for the evap codes is run while key off, engine off, and can take a few hours. If you found it before the diagnostic was run, I think you should be OK. I would post how it works, but I found it on another forum. We've got a couple of Dodge techs here that should be able to explain it better. BTW- welcome to the forum!
If the computer detects a leak it takes some time before posting the code and turning on the MIL. Even if the MIL does come on once the leak is stopped the MIL will eventually go off. It just takes some time.
Not to worry..