[Fred0818]

My 1988 Mustang started missing and black smoke was coming out of tail pipes. I change the plugs and wires, but still same problem. What can it be?:sosad:

 

[5SpeedGT]

Ceck for missing/broken/cracked vacumn lines first. Most likely though, the BAP sensor is toast

 

[lxarlo]

bap, throttle position, maf, or a fuel pressure regulator. maybe even a leaky injector.