Im considering using the Harness that came with my LQ4 which came out of a 2002 Yukon. I have the proper C101 pinout and schematic for my 1990 V6 Firebird. Does anybody have the schematic for the connector that I'd splice into C101 on the car?

Thanks in advance!!

Chris

 

I used one in mine

 

Did you use the Truck Underhood fuse panel? Also, what diagram did you use to connect the truck harness to the C101 on the Firewall by the brake booster??

 

I think I'm going to be using a truck harness on mine... Unless I can come across an F-body one for cheap enough. I am also debating whether or not to use the truck fuse panel. I was leaning toward an f-body one for size but I can't remember how big the truck one was...

I am also thinking of just taking the harness all out of the loom anyway, cause it is a 4L80E harness so it is missing a couple things for the 4L60E that I plan to use. Also, if I do decide to do that I guess I would just take the time while I'm at it to extend the PCM main lines so I can mount it in the passenger compartment...

Anyway, here is a site with a good collection of diagrams: http://www.lt1swap.com/2000harness.htm

 

i got a question for some of the more knowlegeable guys here. anyone used the truck harness with a t56 and 5.3, or is it just easier to use the ls1/T56 harness?

 

Good Stuff!! Ill be using this for sure if I go 6.0L Harness route!! Thanks!

 

Used one too. Had to completely tear it appart and make my own harness wire by wire. It was from a 02 Silverado 4WD, I took a sh!tload of wires out of it, probably half of them. heh

 

My Truck harness didnt come with the OBD-2 Test port. Are you guys running an OBD-2 Port??