wiring harness
wiring harness i have a 94 obd1 car.. my harness is jacked up.. will the harness out of a 96 or 97 work with my car? are the connectors the same? they are both manual transmission harness's
TECH Veteran
Joined: Dec 2008
Posts: 4,145
Likes: 61
From: Little Rock, AR
You will have some extra connections on the late harness, like rear O2s, crank sensor, EVAP vacuum switch and the coil connector won't match. You would have to keep your opti harness, too.
but otherwise all the other connections are the same?!? i am switching to a vented opti so i have the new connector.. as far as the coil connector goes are all the wires the same the shape of the connector is different or what? could i just move my connector to the new harness? i have an msd coil so i would like to keep it.. but worse case couldnt i buy a coil from an obd2 car?
but otherwise all the other connections are the same?!? i am switching to a vented opti so i have the new connector.. as far as the coil connector goes are all the wires the same the shape of the connector is different or what? could i just move my connector to the new harness? i have an msd coil so i would like to keep it.. but worse case couldnt i buy a coil from an obd2 car?
http://www.optisparkharness.com/opti...s/default.aspx
TECH Veteran
Joined: Dec 2008
Posts: 4,145
Likes: 61
From: Little Rock, AR
but otherwise all the other connections are the same?!? i am switching to a vented opti so i have the new connector.. as far as the coil connector goes are all the wires the same the shape of the connector is different or what? could i just move my connector to the new harness? i have an msd coil so i would like to keep it.. but worse case couldnt i buy a coil from an obd2 car?
You can compare wiring differences of the coil connectors with schematics on my Tech Page.
Trending Topics
There are some differences in the wiring so have a look through the connectors in the link http://shbox.com/1/harness_connector_faces.htm
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
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
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo So by not using the "stupid vacuum tubes" you will have successfully made the first vent opti into a non vented conversion. You are defeating the whole purpose of making the swap by not putting the hoses on.
I'm switching to a 95 opti as well but the only thing you need is a new opti harness and stupid vacuum tubes (which I'm not putting on.) Oh, and a longer cam dowel..
http://www.optisparkharness.com/opti...s/default.aspx
http://www.optisparkharness.com/opti...s/default.aspx
OP: I am pretty sure just switching the coil to the obd2 style or switching the connectors and keeping your current coil will both work fine, but I'm sure the others have much more lt1 knowledge than myself.
TECH Veteran
Joined: Dec 2008
Posts: 4,145
Likes: 61
From: Little Rock, AR
shbox, I have a 97 but swapped to a 95 pcm and knock sensor a few months back. It's running fine, but I noticed that not only is the coil different, but also the ICM carries a different part number. I'm still running the 97 coil and ICM. I know the coil is fine as-is, but is there a compatibility issue with the 97 ICM and the 95 PCM?? OP: I'm thinking it's okay to ask this in your thread since it's kinda relevant and may or may not be something that you have to consider with your harness swap. Otherwise I'd have just started a new thread.
Not with the correct diameter tubing, flow reducer, backflow prevention valves, and elbows. Sure you could just throw any old tubing on there, but the FR and BPV are extremely important in keeping your optispark oil and crud-free.
