LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

OBD1 diagnostic port pinout

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Old Feb 2, 2003 | 05:37 PM
  #1  
Hotwire's Avatar
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From: Summerfield, NC USA
OBD1 diagnostic port pinout

Hey all,

Just trying to tie up loose ends on this LT1 swap and need some help.

I'm trying to splice the LT1 harness into the S-10 and need to know what wires go where on the diagnostic port.

If anyone could just run off the the numbers, 1-6, 7-12, I'd greatly appreciate it! The pcm has already been programmed by Ion Soltan and I have the program and cables to get into it a little myself, just need to get everything together.

Pretty soon I'll be makin pony boys weep!!!!!

thanks guys,

Jeff
Old Feb 2, 2003 | 05:47 PM
  #2  
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From: Kansas
01 02 03 04 05 06 07 08
09 10 11 12 13 14 15 16

05 = Ground
06 = Mode Select
09 = Serial Data

heres the other one but i thought in your sig is say you have a 95 in which case youd use the top one but heres the 12 pin

F E D C B A
G H J K L M

A = Ground
B = Mode Select
M = Serial Data
Old Feb 2, 2003 | 05:50 PM
  #3  
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From: Little Rock, AR
DLC pinouts
Old Feb 2, 2003 | 05:59 PM
  #4  
Hotwire's Avatar
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From: Summerfield, NC USA
Talking

Rob,

dude, you are the man. you can add me to the list of "owe beers."

I can't wait to get this truck on the road, you are helping me a bunch!!!

Thanks,

jeff
Old Feb 2, 2003 | 06:02 PM
  #5  
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From: Little Rock, AR
Originally posted by Hotwire
Rob,

dude, you are the man. you can add me to the list of "owe beers."

I can't wait to get this truck on the road, you are helping me a bunch!!!

Thanks,

jeff
Give turbo_Z some credit. He typed all that stuff out.

(maybe he cut and pasted, but the effort was there )
Old Feb 2, 2003 | 06:07 PM
  #6  
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From: Kansas
Originally posted by shoebox
maybe he cut and pasted, but the effort was there )
i will admit your reply was far better than mine. and btw...i did cut and paste
Old Feb 2, 2003 | 06:13 PM
  #7  
Hotwire's Avatar
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From: Summerfield, NC USA
lol, preciate it guys, I really do appreciate all the help.

also, thanks turboz, I saw your reply as well and was getting ready to print it out when rob popped up. your diagram is heads on too, but there were more than three hooked up to the original port on the s-10, and was curious if i needed anything else connected.

I really do appreciate all your time guys, you make the forum worthwhile.

Jeff
Old Feb 2, 2003 | 06:22 PM
  #8  
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Posts: 4,577
From: DeKalb, IL
Originally posted by Hotwire
lol, preciate it guys, I really do appreciate all the help.

also, thanks turboz, I saw your reply as well and was getting ready to print it out when rob popped up. your diagram is heads on too, but there were more than three hooked up to the original port on the s-10, and was curious if i needed anything else connected.

I really do appreciate all your time guys, you make the forum worthwhile.

Jeff
Just noticed your email Jeff... looks like I'm a little late.
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