I dunno if anyone else has experienced this but my CEL came on a couple days ago the same time my fuel light came on. Its very weird because as soon as I refueled, the light went away. Never happened to me before. I have this theory that it could be because the engine wasn't getting enough fuel and might be affecting the A/F ratio, (I do have a CPE intake), but if this were the case, why didn't it happen before when my fuel light came on. Well I'm gonna drive it again until i'm low on fuel and see if the CEL comes back on.