it seems like my car isn't liking something? it's a great daily driver and is modded but for some reason every now and then it goes into a limp home mode or failsafe check-engine mode. I have a tune from steeda, off road h-pipe with mil eliminators,flowmaster custom exhaust, steeda underdrive pullies and k&n aircharger kit. I have sent my tuner back to steeda a couple of times and tried new tunes but it still messes up? I am having it looked at sat. but was wondering if anyone else is having this problem or if they might have an idea why the car is acting retarded. I have read post about butterfly valves not opening correctly....i've heard that the crank pulley might not be on straight???? I dunno, please tell me what you think?