6.0 harness and PCM, will it work with a 5.3 engine?
Thread Starter
Joined: May 2006
Posts: 4,218
Likes: 3
From: Birmingham AL.
6.0 harness and PCM, will it work with a 5.3 engine? I'm actually going to be installing a 5.3 into a denali that is DBC. I was just wondering if the 6.0 harness and PCM will work with a 99-02 5.3 engine?
I'm thinking it should just be a plug and play, but figured I would ask and see. I also think it has the 4l80e trans in this 02 denali.
I'm thinking it should just be a plug and play, but figured I would ask and see. I also think it has the 4l80e trans in this 02 denali.
Teching In
Joined: Jul 2023
Posts: 30
Likes: 3
From: California
I have a 4l80e in my 5.3 06 silverado... could I just swap a 6.0 pcm that has a 4l80e in it? what issues will I run into? or what would be the easiest way to tune it? is it only a segment swap and certain pins that need to be swapped? sorry for all the noob questions to the mechanics that know what they are doing. I just need a bit more understanding.
Teching In
Joined: Jul 2023
Posts: 30
Likes: 3
From: California
I understand that part about moving the wires and adding the speed sensor.... but a tune.... do I just do it through hp tuners or is there a sct or edge or any hand held tuner I can use or do I have to do it through my laptop on hp?
Trending Topics
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine
Verdad Gallardo
7 Most Reliable High-Performance Engines GM Has Ever Built
Verdad Gallardo
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin
Verdad Gallardo
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo Yup this is laptop stuff, not doing it with a hand held. I know with the older Gen III stuff you needed a segment swap, don't know if with the DBW the factory programming allows you to run either and you just drop the tune in.
Teching In
Joined: Jul 2023
Posts: 30
Likes: 3
From: California
Thank you!!! Im taking my pcm to a guy in LA to get it segment swapped and after that he said to take my truck to get my shift points right with him!!!! for $250 not bad! rather do that then buy my own hp tuners and credits for it. the cheapest route for me atm!
