So as with all problems I'm turning to reddit before I go drop an entire paycheck.

I've had my car (2014 mustang gt 5.0. Coyote, it has the "original" intake manifold on it but I have a boss 302 sitting in my trunk) for about a month or so now, and I recently did a road trip of 1300 miles all together. On my way home while cruising on the highway in 6th at around 2.6k rpm felt a stutter and my car went into limp mode, well I flipped the fuck out and immediately checked my tuner after pulling off and said I ran a p0300, p0301, p0306 (random misfire and misfire for cylinder 1 and 6) so in all my smartness I went ahead and swapped plugs and coil packs. Car ran well no more codes. Yesterday I was driving around town resting at about 2.4 rpms getting ready to hop on the highway, and lo and behold it does it again, once again into limp mode. So I get my injectors professionally changed and everything was put back in the right way. Go to drive back and BOOM ANOTHER FUCKING LIMP MODE RUNNING THE SAME GODDAMN CODES. So my question is.. what could it be? The boss 302 in my trunk came with my car for free. Would running an original intake on a 302 variant engine cause this? (Havent been able to check vin yet to make sure it's an actual variant) my tune is bone stock... now on to another issue, my ac is out. So what happens is it's a 50 50 on startup, but my entire center panel doesnt work and air only blows full force from my defrosters, would bad door blenders prevent the whole fucking center console from working? Or is it an electrical short somewhere cause YHE WHOLE.FUCKING CENTER CONSOLE DOESNT WORK