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Would it cause all those other codes?
Should I replace the chip for good measures?
No
Until you have completed the diagnostics on the other circuits you have no idea what is going on.
I would also try pulling the codes the factory way to see if you get anything different showing ( hopefully less codes )
See http://www.corvettephotographs.com/c4vettes/codes.htm.
This thread is past it's use by date.
Would be better to start a new one after you have the results of your tests