LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Opti wiring harness?

Thread Tools
 
Search this Thread
 
Old Jun 1, 2009 | 10:30 AM
  #1  
Murdered96TA's Avatar
Thread Starter
Teching In
iTrader: (2)
 
Joined: Jan 2009
Posts: 27
Likes: 0
Default Opti wiring harness?

Just wondering if a wiring harness on a 94 obd1 is different than a 96 obd2.
Reply
Old Jun 1, 2009 | 04:05 PM
  #2  
shbox's Avatar
TECH Veteran
15 Year Member
Liked
 
Joined: Dec 2008
Posts: 4,145
Likes: 61
From: Little Rock, AR
Default

Yep, it sure is, but the OBD type has nothing to do with it. 93-94 optis (non-vented) use one harness, 95-97 optis (vented) use another.
Reply
Old Jun 1, 2009 | 04:50 PM
  #3  
Murdered96TA's Avatar
Thread Starter
Teching In
iTrader: (2)
 
Joined: Jan 2009
Posts: 27
Likes: 0
Default

Thanks for the information. I had to replace my opti i had a msd. Went with a oem opti with msd cap and rotor. I didn't have the stock wiring harness so i put one off a 94 on there and its just crankin but wont start.
Reply
Old Jun 1, 2009 | 04:59 PM
  #4  
shbox's Avatar
TECH Veteran
15 Year Member
Liked
 
Joined: Dec 2008
Posts: 4,145
Likes: 61
From: Little Rock, AR
Default

Originally Posted by Murdered96TA
Thanks for the information. I had to replace my opti i had a msd. Went with a oem opti with msd cap and rotor. I didn't have the stock wiring harness so i put one off a 94 on there and its just crankin but wont start.
An early harness has a short plug at the opti end. The later harness is long there. An early harness will never make contact with the opti pins on the vented model.
Reply
Old Jun 1, 2009 | 05:02 PM
  #5  
Murdered96TA's Avatar
Thread Starter
Teching In
iTrader: (2)
 
Joined: Jan 2009
Posts: 27
Likes: 0
Default

Oh, okay. Does that sound like that is the problem then? Where can you pick one up at?
Reply
Old Jun 1, 2009 | 06:05 PM
  #6  
Schweet97Z's Avatar
12 Second Club
iTrader: (35)
 
Joined: Jan 2006
Posts: 1,550
Likes: 0
From: Danville PA
Default

That is definately the problem.

I have a brand new harness id be willing to sell for 20+ shipping. Its a Vented opti harness.
Reply
Old Jun 1, 2009 | 11:01 PM
  #7  
Murdered96TA's Avatar
Thread Starter
Teching In
iTrader: (2)
 
Joined: Jan 2009
Posts: 27
Likes: 0
Default

pm sent
Reply
Old Jun 2, 2009 | 01:30 AM
  #8  
squeals99's Avatar
TECH Enthusiast
iTrader: (8)
 
Joined: Aug 2006
Posts: 664
Likes: 0
From: Linton, IN
Default

if you dont get it from him i bought mine from i think a sponsor... if not someone can fix it... but it was from www.eficonnection.com
they have all sorts of harnesses and plugs on there
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-1

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-2

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-3

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-4

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-5

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

 Verdad Gallardo
story-6

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

 Verdad Gallardo
story-7

10 Camaros You Should Never Buy

 
story-8

10 LS Engine Myths That Refuse to Die

 Verdad Gallardo
story-9

Five Reasons the Camaro Was the Most Pivotal Player in the Pony Car Wars 2.0

 Brett Foote
Old Jun 2, 2009 | 10:29 AM
  #9  
Murdered96TA's Avatar
Thread Starter
Teching In
iTrader: (2)
 
Joined: Jan 2009
Posts: 27
Likes: 0
Default

Thanks for the information
Reply




All times are GMT -5. The time now is 06:39 PM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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-7
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-8
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
story-9
Five Reasons the Camaro Was the Most Pivotal Player in the Pony Car Wars 2.0

The world was a better place when it was still around.

By Brett Foote | 2026-01-23 09:20:37


VIEW MORE