PCM Diagnostics & Tuning HP Tuners | Holley | Diablo

PCM removal question

Thread Tools
 
Search this Thread
 
Old Apr 4, 2006 | 05:23 PM
  #1  
quail's Avatar
Thread Starter
Teching In
 
Joined: Nov 2005
Posts: 8
Likes: 0
Default PCM removal question

i have a 99 ls1 camaro and am looking for a place to run a power wire to a speaker amp through the firewall i remember in a 98 there being a good spot behind the PCM... I tried to instead of taking the entire pcm out just remove the two banks off the top exposing the pins to take a peak behind it... however im a moron and im 99% sure i put them back the right way...is it possible to switch them and do it backwards put the top "plug" on the bottom bank and the bottom plug to the top bank or do they fit only in their respective locations? Please help thanks
Reply
Old Apr 4, 2006 | 05:51 PM
  #2  
2001NBMZ28's Avatar
TECH Senior Member
 
Joined: Dec 2001
Posts: 5,399
Likes: 3
From: Jacksonville, FL
Default

Don't know if it's possible to reverse them or not, can't remember what they looked like. I wrote in pencil top and bottom when I removed mine. Anyway, on my car the "bottom" connector has another bundle of wires coming out of it going to the connectors on the fender well - yours is probably the same.
Reply
Old Apr 4, 2006 | 06:05 PM
  #3  
quail's Avatar
Thread Starter
Teching In
 
Joined: Nov 2005
Posts: 8
Likes: 0
Default

yeah thats how mine is too so i guess i had it right thanks a bunch
Reply
Old Apr 4, 2006 | 09:25 PM
  #4  
slow's Avatar
TECH Senior Member
20 Year Member
iTrader: (7)
 
Joined: Dec 2001
Posts: 6,150
Likes: 7
From: Orlando
Default

There is a huge RED and BLUE connector markings on the side of the pcm, and the wires are setup in such as way the top connector has them running off the top, and the bottom coming off the bottom, so it is not possible to reverse them.

Ryan
Reply




All times are GMT -5. The time now is 11:18 PM.

story-0
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-1
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-2
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-3
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-4
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-5
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-6
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-7
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-8
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-9
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE