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Should be interesting to see why GM changed things up.
I found this out some months back because Vortech asked to use my car for "cold start" testing in exchange for a discount on their Camaro kit. Lo and behold, they found out that GM had changed the operating system for the PCM as well as having changed the actual vendor that makes the TCM and the accompanying tune.
Fortunately, everything is running well on my car now, but at first, man oh man, not good.
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