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Originally Posted by blackjack
i bought this improved calibration after reading mark haybeck`s site...
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Ahhh. So you bought Marc's calibration, not the GM one.
Many probably read your post as buying the stock factory replacement calibration. In which case, as Tyler said, the 1-4 would not be disabled, nor would any appreciable change be made to the fan on temps.
Any chip purchased from a GM dealer would not have the "enhancements" which Marc provides. Although he starts with the most recent GM service replacement cal, he does make several changes, as noted on his website.
Todd