the check engine light turns on while im driving my 94 accord ex at about 50-60 mi/hr on 5th gear. the mods i have are: dual magnaflow exhaust, headers, intake, and complete downpipe, race cluctch and NGKs spark plugs. i know that the intake sets off the light but it usually stays on once u turn on the car, im not sure why it goes off only after hitting 50 and im at a constant speed. any ideas?