you'll have to get schematics to figure out which lead goes from the module to the ecm. a good place to start is a 90 tpi camaro. Look for the "large" dist. wiring. I believe you'll actually be looking for the wire that goes from the esc module to the dist. No beer required. That's the great thing about the forums. Everyone brings a little knowledge to bring the whole community up to speed. I think I might have some caddy manuals that used the chev motors. If you can't find any schematics, let me know.
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