Really enjoying my first day of being a part of VCA so far. Lots of great people on here! I'll probably start posting a lot less soon so I can focus more on work... Haha!
So I have an important question to ask and have some background info to give first... So the previous owner replaced the stock cats with high flow cats and it sounds amazing with a bit more power too, about 620 hp now. Also has K&N air filter in place of the stock one.
The other day I drove it to my buddy's house and we washed, waxed, and detailed our cars by the books and very carefully, and I drove her home about 20 miles and filled up on premium gas a mile from my home. Took her out again that evening with my wife to a wedding about 20 miles away, and about 4 miles in, the check engine light came on. Totally freaked me out, but the car was driving fine with no tangible issues. What do you think the problem could be, if any at all? My assumption is that it could be from filling up and the gas cap wasn't put back on perfectly, or maybe the high flow cats are causing something to trip? They do make a lot of popping noises, basically backfires, when I am driving and let off the gas. Should I bring her in to be serviced or do you think this is a non-issue that should be fine?
Thanks in advance for any advice or help!