Discuss General Motors (GMC, Chevy, Pontiac, Hummer, Cadillac, etc) tuning topics here. Request definitions, discuss parameters, etc.
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Hi there. I'm a total newbie to this stuff and am starting to at least understand some lingo. Here is my problem. I've downloaded the files I believe to be correct and still can't get the ECM to communicate with my computer. It acknowledges the cable alone but then will not connect when I turn the key on. The ECM is a 165 and it has a hypertech chip in it. I need some guidance in how to get these to talk to one another cuz I'm apparently missing something. Any help would be greatly appreciated. We are restoring an 89 IROC and the previous owner had deleted to the old computer. We got a new computer and did a bunch of upgrades to the car and now it's time to tune it in. It runs but won't idle. Anyhow any help would be awesome.