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vette5148 · 02-01-2022, 08:30 PM

You should check for continuity between the injector plug in and the corresponding pins on the ecm plug in to make sure there isn't a break in the wiring somewhere. Hate to put in a new computer and it does the same thing. Have seen a broken wire or a mouse damaged one before.

02-01-2022, 08:30 PM	#2
vette5148 Junior Member Join Date: Jan 2022 Posts: 17 Likes: 38 Liked 32 Times in 9 Posts	Re: 2001 gmc 8.1 ECM upgrade question You should check for continuity between the injector plug in and the corresponding pins on the ecm plug in to make sure there isn't a break in the wiring somewhere. Hate to put in a new computer and it does the same thing. Have seen a broken wire or a mouse damaged one before.