Computer problem
1994 Buick Roadmaster V8 Two Wheel Drive Automatic 87654 miles
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car misses bad under acceleration but idles smooth. the car runs fine for the first 4 or 5 miles until it warms up. if i unplug the pcm and reconnect it the car runs fine for about a half mile. then same thing. no check engine light. i also tried to jumper the adl connector but could not even get code 12

my camaro was doin that and i had to change the coil pack and it worked