Hi. I have a 2002 mustang gt I swapped in a 1994 mark 8 engine and installed 1998 cobra intake I extended the coil wires for cop along with some other wires. So I did a test fire and it started with out having all the harness plugs connected or any vacuum lines hooked up it started right up but would stall. So I finished hooking up all the connectors but when I put the wire from the alternator on the fuse box the negative cable started smoking and broke the ground by the radiator I fixed the...

Pcm help