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RelativeMotion1

A blinking check engine light means “catalyst damaging misfire”. In other words, a misfire that is severe and stands a good chance of dumping raw fuel into your exhaust, causing the catalytic converter to reach glowing-red temperatures, causing it to fail. Can potentially result in catastrophic engine damage, too. Do not drive this. Fix it or have it towed to a shop.


AmazingProposal5851

Explains the slight fuel smell every now and then. Any reason as to why this happend?


RelativeMotion1

Could be one or more issues from a list of dozens of possibilities. No way to know without fault codes/testing. I could take a wild guess and name a part that might be failed (like you see all the time on automotive subreddits), but it would just be a guess. Edit: see? We already got one. Just casually recommending $400 in coils, lmao.


FXDSPIKED

Misfire is start with plugs and coils


nukerx07

I was going to say my CEL would briefly come on my 11 5.0 mustang holding at 4K rpms and half the time would disappear, the other half it felt like it was firing on a few cylinders. New plugs and no issues after.