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ORIGINAL: Shovelhead Bob
Now, you wanna know something really funny.... all of the PC III's that were installed will need to come off, so the ECM can be updated with the proper flash, or it can't be installed... Inherent flaw with the PC III.... Prevents System Information from being processed, but engine data gets through.... Hmmmmmm?????
THEN, you are going to have to retune your PC's as the Baseline ECM programming has been changed, and your settings are going to be off kilter for the PC to modify.....
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Gunrunner (in another thread) stated that he did not have to remove his PCIII when his ECM was flashed as it was done through an "alternate" port... whassup wid dat?