The past several times I filled up my car with gas (93 octane) after about 50 miles the service engine soon light comes on, so I remove the gas cap, re-install it and give it a couple of minutes and the light turns off. The seal in the gas cap look ok, there’s no cut, and it's not dried out, am I missing something? Also I just installed a BORLA cat-back exhaust, im wondering if that could be bothering me too.