State Inspection, Fuel Cap and Check Engine Light
I've lived in Texas about 24 years and never had a car fail inspection, until last week. The stupid gas cap failed whatever test they do. I didn't even know there was a gas cap test! The guy's nice about it and all, tells me to go to Autozone and get a new cap. I get the new cap, return to complete the inspection, it passes, and I drive home with a new inspection sticker. At least it didn't cost a lot of money.
Two days later, I notice the check engine light is on. I'm like WTF (What's That For? - in case you were thinking something more profane)? So I check miata.net to figure out how to read the CEL codes (I'm new at this), and I run across this
http://www.miata.net/garage/egr.html#cap
"If you do not tighten your gas cap sufficiently, the Check Engine light may come on...."
The gas cap is tight, but this new one has a button on the top. I guess it's to relieve pressure - push down and it vents. And the fuel door cover pushes down on the button when it is closed.
So that seems to be the problem: cover pushes button, button vents pressure, CEL genie thinks gas cap is not tight, CEL turns on.
I don't want to drill a hole in the cover for the button to fit through. Do I cut off the button (it's plastic), should I just get a new OEM gas cap? Anyone got a spare?