a few weeks ago, my engine light was going on and off and i brought it to my buddy and he said it was the o2 sensor so i fixed that. he also plugged it up to a computer and cleared the codes. after that it was fine. the other day when i put a bbk 52mm throttle body on and when i started it after about 15 min the light came on. i got home, turned the car off and when i got back in it and turned it on, it was off. it seemes to be that if the car is running for more than 20 min or so, the light comes on. whenu first start it though, its off. idk wut is goin on