Ok, I just had my service engine soon light come on as I was driving home from the gas station after paying $2.45 a gallon. Even though that's not important, I just wanted to let you know how bad we got it out here in Cali with gas prices. Anyway, I think it's the fact that I have a prochamber with no cats on but I put that thing on like 3 weeks ago. Why would it come on now all of a sudden? Could it be something else? I'm kinda worried. Also, when I stepped on it today it didn't shift automatically at 5800-5900 like usual, it climbed all the way to about 6250 or so. Am I just being paranoid or do you think there may be something wrong? I'm sure I'm just paranoid but this is my baby and I don't want her to be hurt lol.