Howell ENGINE DEVELOPMENTS???
Thread Starter
On The Tree
Joined: Aug 2004
Posts: 129
Likes: 0
From: Sacramento, CA
Howell ENGINE DEVELOPMENTS??? Has anyone heard of them or used there harness? I finally figured out that this is the harness that came with my 98 ls1 that i bought. We are still having a problem, we arnt getting any spark at the coils.
Thanks
Thanks
Thread Starter
On The Tree
Joined: Aug 2004
Posts: 129
Likes: 0
From: Sacramento, CA
I wish there web site had the diag for the harness or pin out info. the harness has wires comming out of the pcm that are not factory! Blue harness pins 11 and 77. gm pin out say "not used" Wondering if these 2 wires are my problem!!
Reid
Reid
hmmm, very odd. Not much help to ya!
Edit: Those wires have the be the reason. I think they belong in another spot? Have you traced all of the wires making sure they're in the right place?
-Matt
Edit: Those wires have the be the reason. I think they belong in another spot? Have you traced all of the wires making sure they're in the right place?
-Matt
Thread Starter
On The Tree
Joined: Aug 2004
Posts: 129
Likes: 0
From: Sacramento, CA
yeah i have traced everything like 5 times lol.... i had to! i didnt have any diag so i had to trace everything just to figure out it all went! but im at a loss with those since the factory pin out says not used.
Joined: Nov 2001
Posts: 1,707
Likes: 33
From: Anderson, Indiana
What color are the 2 mystery wires? Maybe you have a 98 PCM but a 99 and up harness??
__________________
91 Z28 LS2 408CI, LS9 Supercharger, LPE GT7 cam, Yank3000, 3450 raceweight.
Latest numbers: 9.71 ET, 141.42 MPH, 1.40 60' , 610 RWHP Mustang Dyno
www.speartech.com
91 Z28 LS2 408CI, LS9 Supercharger, LPE GT7 cam, Yank3000, 3450 raceweight.
Latest numbers: 9.71 ET, 141.42 MPH, 1.40 60' , 610 RWHP Mustang Dyno
www.speartech.com
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
On The Tree
Joined: Jun 2005
Posts: 189
Likes: 0
From: Prescott, Arizona
Howell Question My son-in-law is a Howell Engine Developments Dealer and is a great LS Wiring PCM troubleshooter. He's a great guy and might be able to tell you what's goin' on, or get you some answers from Howell.
Call Jeff at Howard Performance Gilbert, Arizona (480) 577-9413
Call Jeff at Howard Performance Gilbert, Arizona (480) 577-9413
