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Re: Can someone tell me why?? (GM Question)
Posted to Technical Theory Forum on 6/14/2007

Alan,

As Steve Phillips said, A vehicle with an "independent" ICM only needs: Power, Ground and a valid CKP signal to start on "module timing". Fords and Chryslers are different beasts because the PCM (with all their attendant programing) does directly contr... Login to read more.