I just installed a turbo timer, S-AFC, and a 2nd turbo and the first time i turned the car on i got the check engine light and the trac off light to come on. My trac fuse is not pulled, btw. I remember i got this same problem last time i replaced my turboes but it went away (i can't even remember if i fixed it or it just went away on it's own). Any help would be appreciated. Thanks.