I need a 95 pcm pinout diagram
10-27-2009, 11:40 AM
#1
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I need a 95 pcm pinout diagram Does anyone have a link so I can see the different pinouts for a 95 lt1 harness vs a 94? I need to do some research and find out if my 95 computer is having issues with my 94 harness. Tia
10-27-2009, 12:48 PM
#3
I replied with some of the information for your question in your other thread...
Shbox.com has tons of information. The first link below is to the wiring pinouts for the different plugs on the engine harness that connects it to the rest of the vehicle. In 1995-1997 LT1s, there were two plugs on the passenger wheel well / strut tower area. In 1993 and 1994, there's only one. These two plugs are C100 and C105. For all the years (as far as I know) there are three main plugs that go through the firewall under where the PCM mounts that connects the engine harness to the interior harness. I know there are wiring differences between the years for those plugs.
http://shbox.com/1/harness_connector_faces.htm
PCM wiring pinout for a 1995 is also on Shbox's website. Unfortunately, I'm not sure if the 1994 is wired differently or not... never seen any other pinout other than the one Shbox used from the 1995 Service Manual.
http://shbox.com/1/4th_gen_tech2.html#1995_pcm_pinouts
Shbox.com has tons of information. The first link below is to the wiring pinouts for the different plugs on the engine harness that connects it to the rest of the vehicle. In 1995-1997 LT1s, there were two plugs on the passenger wheel well / strut tower area. In 1993 and 1994, there's only one. These two plugs are C100 and C105. For all the years (as far as I know) there are three main plugs that go through the firewall under where the PCM mounts that connects the engine harness to the interior harness. I know there are wiring differences between the years for those plugs.
http://shbox.com/1/harness_connector_faces.htm
PCM wiring pinout for a 1995 is also on Shbox's website. Unfortunately, I'm not sure if the 1994 is wired differently or not... never seen any other pinout other than the one Shbox used from the 1995 Service Manual.
http://shbox.com/1/4th_gen_tech2.html#1995_pcm_pinouts
10-27-2009, 01:09 PM
#5
I've got the PCM wiring for 1993-1994 from Chilton's... -removed false information-
Edit: Wait, not sure on that yet - I was reading this Chilton diagram wrong... It's showing plug "A" and plug "B" on one PDF file, which threw me off. Still compiling.
Edit: Wait, not sure on that yet - I was reading this Chilton diagram wrong... It's showing plug "A" and plug "B" on one PDF file, which threw me off. Still compiling.
Last edited by meissenation; 10-27-2009 at 01:36 PM.
10-27-2009, 01:30 PM
#6
OK I've compared A, B, and D plugs and they are identical according to Chilton.... if I compare plug C and it's identical too, then epic fail on my part for spending all this time comparing the two in excel and epic fail on Chilton's part for separating 1993-1994 and 1995 PCM wiring diagrams...
Alright - atleast comparing Chilton's PCM Wiring to Shbox's 1995-1997 PCM pinouts, they're identical...
My only other guess would be - are you sure it's a 1995 LT1?
Alright - atleast comparing Chilton's PCM Wiring to Shbox's 1995-1997 PCM pinouts, they're identical...
My only other guess would be - are you sure it's a 1995 LT1?
Last edited by meissenation; 10-27-2009 at 01:40 PM.
10-27-2009, 01:42 PM
#7
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Damn. They are identical huh? I am stumped then. Worst case scenario is I can't get this thing figured and I have to end up going carbureted. I don't have the money for that right now but I can save for a few months. Haha. Well I guess after work I will go come over every single wire and see if I have any shorts. I have already gone through a lot of the harness so far. Now I need to look under the dash and make sure a squirrel didn't get in my car when it was sitting without the motor and trans in it. That would be a bad day to find shreds of wires haha.
