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

Wiring harness question

Thread Tools
 
Search this Thread
 
Old 07-25-2012, 12:44 PM
  #1  
Staging Lane
Thread Starter
iTrader: (1)
 
Mike.'s Avatar
 
Join Date: Jun 2012
Location: Jacksonville, Fl
Posts: 72
Likes: 0
Received 0 Likes on 0 Posts
Default Wiring harness question

I need to replace the engine harness on my 97 ta. I have the lt1 with a t56. I've found a harness from a 96 lt1 with an automatic transmission. Will this harness work on my car?
Old 07-25-2012, 01:54 PM
  #2  
TECH Veteran
 
shbox's Avatar
 
Join Date: Dec 2008
Location: Little Rock, AR
Posts: 4,116
Received 50 Likes on 44 Posts

Default

It not going to work without some modification. The best thing would be a 96 or 97 harness from a T56 car.
Old 07-25-2012, 07:28 PM
  #3  
Staging Lane
Thread Starter
iTrader: (1)
 
Mike.'s Avatar
 
Join Date: Jun 2012
Location: Jacksonville, Fl
Posts: 72
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by shbox
It not going to work without some modification. The best thing would be a 96 or 97 harness from a T56 car.
I'm glad I asked. Will a 96 T56 harness require any modification?
Thank you for the response. I think I use your website a lot, unless I have you mixed up with someone else.
Old 07-25-2012, 10:21 PM
  #4  
TECH Veteran
 
shbox's Avatar
 
Join Date: Dec 2008
Location: Little Rock, AR
Posts: 4,116
Received 50 Likes on 44 Posts

Default

Originally Posted by Mike.
I'm glad I asked. Will a 96 T56 harness require any modification?
Thank you for the response. I think I use your website a lot, unless I have you mixed up with someone else.
I am pretty sure 96-97 harnesses are the same. Make sure it is for an f-body.
Old 07-26-2012, 07:21 PM
  #5  
TECH Fanatic
iTrader: (7)
 
Spartan7's Avatar
 
Join Date: Mar 2009
Location: Spring, TX
Posts: 1,714
Likes: 0
Received 6 Likes on 5 Posts

Default

Modifying the A4 harness for your T56 is easy on 96-97 harnesses. I have details on doing it if you want.
Old 07-26-2012, 10:57 PM
  #6  
Staging Lane
Thread Starter
iTrader: (1)
 
Mike.'s Avatar
 
Join Date: Jun 2012
Location: Jacksonville, Fl
Posts: 72
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by Spartan7
Modifying the A4 harness for your T56 is easy on 96-97 harnesses. I have details on doing it if you want.
If it would be easy that would be great. I'm having a hard time finding a 96-97 t56 harness.
Old 07-27-2012, 09:30 AM
  #7  
TECH Fanatic
 
93M6Formula's Avatar
 
Join Date: Aug 2008
Location: Nebraska
Posts: 1,740
Likes: 0
Received 2 Likes on 2 Posts

Default

Out of curiosity, what's wrong with your current harness?
Old 07-27-2012, 07:24 PM
  #8  
Staging Lane
Thread Starter
iTrader: (1)
 
Mike.'s Avatar
 
Join Date: Jun 2012
Location: Jacksonville, Fl
Posts: 72
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by 93M6Formula
Out of curiosity, what's wrong with your current harness?
The previous owner somehow got a fire going under the hood. Heat + electrical tape on everything made everything a sticky mess. Some connectors are melted, and there's a lot of exposed spots. Somehow everything still works.

Here's an example for you. Look at the grounds on the right, and the iac connector on the left.

Old 07-28-2012, 09:17 PM
  #9  
TECH Fanatic
iTrader: (7)
 
Spartan7's Avatar
 
Join Date: Mar 2009
Location: Spring, TX
Posts: 1,714
Likes: 0
Received 6 Likes on 5 Posts

Default

Originally Posted by Mike.
If it would be easy that would be great. I'm having a hard time finding a 96-97 t56 harness.
It's really not that bad, all you'd have to do is splice your existing T56 connectors into the A4 harness. All the PCM wiring is already in the A4 harness, it's just a matter of hooking up to the right wires. The only issue would be reverse lights, I'd have to look through the schematics to figure that out.
Old 11-17-2012, 08:21 PM
  #10  
Staging Lane
Thread Starter
iTrader: (1)
 
Mike.'s Avatar
 
Join Date: Jun 2012
Location: Jacksonville, Fl
Posts: 72
Likes: 0
Received 0 Likes on 0 Posts
Default

I know this is an old thread, but does anyone know if a 95 lt1 t56 harness will work for a 97? I can't seem to find the changes.
Old 11-17-2012, 10:38 PM
  #11  
TECH Veteran
 
shbox's Avatar
 
Join Date: Dec 2008
Location: Little Rock, AR
Posts: 4,116
Received 50 Likes on 44 Posts

Default

Originally Posted by Mike.
I know this is an old thread, but does anyone know if a 95 lt1 t56 harness will work for a 97? I can't seem to find the changes.
A 95 harness will not have wiring for several things your 97 has:
-rear O2s
-crank position sensor
-EVAP vacuum switch

and it will have a different coil connector.
Old 11-17-2012, 10:40 PM
  #12  
11 Second Club
iTrader: (11)
 
green96ta's Avatar
 
Join Date: Jul 2007
Location: Kentucky
Posts: 316
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by Mike.
I know this is an old thread, but does anyone know if a 95 lt1 t56 harness will work for a 97? I can't seem to find the changes.
No it wont. At least not plug and play. You will have to repin it and add some wires.

If you want a brand new harness for your application shoot me a pm.



Quick Reply: Wiring harness question



All times are GMT -5. The time now is 03:38 AM.