Hi Guys, new to the forum so forgive the failure to read ever post before this. Have a Built Dec 12 FG XR6, after market turbo, exhaust done, bigger injectors etc. Was going a dream but all of a sudden it has lost its guts. Won't rev past 4K rpm, stays in gear and won't up or down shift and the same issue in manual shift. Returned to factory settings with the flas drive and then reinstalled the dyne tune - nothing, disconnected battery to rest computer, nothing. Frustrated doesn't come close and the fuel usage has doubled. Any ideas as losing patience fast!
