Electronic spark control help
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CF Beginner
Joined: Jul 2022
Posts: 7
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From: Ca
Electronic spark control help
Im. In need of help on my 94 gmc which i pulled out 4.3l motor and and put in a 5.0 motor now the problem having is the ESC we're trying to spark control I need to know where the yellow and black wire goes with pin pin out on the ECM does it connect to
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