I have looked at the "millions" of threads on failed emissions. I think I have a handle of what all to check.
Situation - passed all areas, but one, of the emissions check in Atlanta, GA.
Failed one area. 25/25, high rev, high HCs. Too much unburned fuel if not mistaken.
Question - Would a hole in the exhaust before the rear muffler affect the results? There are a few rather large holes.
I made the mistake of taking the car, which had been sitting for at least two months, without really heating it up, putting in 89 (midgrade) test fuel, and turning it off twice before the test. I know..I know.
Anything else I should try out? Going to check plugs, cap, rotor, vacuum lines, etc.
Thanks in advance.