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11-11-2021, 09:14 AM | #1 |
Member
Join Date: Nov 2002
Location: Potomac,IL
Posts: 268
Likes: 1
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2001 gmc 8.1 ECM upgrade question
I have a 2001 GMC 2500 HD, the ECM isn’t sending a pulse signal to the #4 injector. So I need to purchase a new ECM I am assuming. Anyone have experience upgrading the ECM on these 8.1 chevys for more performance for towing?
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Monte Howard 3209 STK, 3208 SS |
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