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late 99 f250 7.3 issues.

Good to see you got it going. I had an old 97 and I put a bully dog chip on it when I had it. Took the PCM out and apart cleaned it and it worked good for awhile then it would do like you described. I would have to unplug the chip and it would run fine. It was a pain in the ass but I got good and plugging it back up without haveing to take the PCM out every time. But I think my bully dog chip was **** from day one and would never buy another one of those. And kinda makes me Leary about any piggy back chip :****:
 
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