I have an 07 GT 5spd w/ mods MMR CAI, JBA Shortys, X-pipe, MSD ignition, Magnaflow Catback, SCT including a custom tuner. My car wont start and everything is f'ed. I installed a MMR TB and it went into limp home mode with a code of 2104. The car idled very low and wouldnt rev. I took it...