1990 Suburban 5.7 TBI V2500 Wiring Harness Search

[Fat Amy 90]

Hi all,
I'm new here and new to the Square Body world in general. I've been searching the depths of the internet and cannot find a wiring harness that I can use, called Painless and they told me, "good luck." So, does anyone here have info that will help me? I'd like to avoid chasing wires one by one if I can. Anything helps.

*1990 Suburban 5.7 TBI V2500*

Thanks!
Mike

 

[dd1990]

Would this work:

https://www.speedwaymotors.com/Speedway-1985-1992-GM-TBI-Engine-EFI-Wiring-Harness,46375.html?utm_medium=CSEGoogle&utm_source=CSE&utm_campaign=CSEGOOGLE&gQT=2

 

[Fat Amy 90]

David,
Thanks! I'll give them a call. The sire is telling me it may not fit but I will call and be sure. I'll let this thread know the outcome. Appreciate you.
Mike

 

[K5Beats]

Old thread but I was in the same situation with a 89 k5 blazer Ron Francis wiring is who you need they can get you set up with a harness that will utilize your Tbi and all factory options great people to work with.

 

[creich68]

Old thread but I was in the same situation with a 89 k5 blazer Ron Francis wiring is who you need they can get you set up with a harness that will utilize your Tbi and all factory options great people to work with.

K5Beats - do you happen to know if they make custom harnesses to match OEM harnesses. I’m currently on the search for a harness that covers from the firewall junction block to throughout the engine bay.