98 pcm help
10 Second Club
Joined: Jul 2008
Posts: 224
Likes: 0
From: Columbus Ohio
In short no. The harness can be re-pinned, but IMO is too big of a PITA. You could install a 99-02 harness and do a full reflash on the 98 PCM. The PCMs are teh same just having a different pin-out.
Repinning the harness ain't that big of a deal. A lot easier than changing the harness, besides you already have a harness. Reflash of 98 PCM wont work. Dean.
https://ls1tech.com/forums/conversio...swap-faqs.html
Trending Topics
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?
Pouria Savadkouei
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
Repinning the harness ain't that big of a deal. A lot easier than changing the harness, besides you already have a harness. Reflash of 98 PCM wont work. Look here for the pinouts. It looks like a lot, but it isn't that bad. You will be happier with the later PCM.
https://ls1tech.com/forums/conversio...swap-faqs.html
https://ls1tech.com/forums/conversio...swap-faqs.html
question-if i have a 98 camaro i am wanting to mod, i.e., heads, cam, injectors, tune accordingly, will i be better off changing to a later pcm, if so, what year pcm?
again, thanks!
It all depends on the extent of your mods. I'm running 10.2 with a 98 ecm so It can't be all that bad. The only reasons I see to change it out are either adding Boost, or really aggresive heads/cam/high compression. So in short, unless your adding boost or building a race car your good to go.
The later pcm have it's advandage in that they are easier to tune using a c.o.s. and they are faster with better resolution. But it's unlikely any of that would equate into HP in a typical heads/cam car.
Frank
The later pcm have it's advandage in that they are easier to tune using a c.o.s. and they are faster with better resolution. But it's unlikely any of that would equate into HP in a typical heads/cam car.
Frank
