1995 mustang gt t5 swap issues...
Okay so I swapped my 1995 mustan. Gt to a t5 trans, immediately after I noticed that when I would beat on it hard it would buck at 4500, 4800, 5300 and not in every gear, I swapped everything over except the trans harness, now I pulled my codes today and got codes; 637, 654, 621, 622, 652, 624... They are all trans temp and shift solenoid fault codes, now the weird thing is that I swapped my PCM to a 5 speed mustang PCM and I'm still getting auto tranny codes? Is it cause I didn't change harness over for trans? Could this be causing my bucking issue? Is it possibly putting the car into a limp mode due to not knowing where it's shifting? Please help thanx
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