I have a 86 ranger 2.9 I bought for 200 an the wiring harness is totaled it federal emissions I was wondering if anyone had one for sale

 

Welcome to the forum

I don't but others might
There should be a few around, many people with 1986 to 1990 2.9l Rangers did a 4.0l swap so used the computer and wiring harness from the 4.0l donor Ranger, leaving them with the unneeded 2.9l computer and wiring harness

Also try posting at this other Ranger forum: https://www.therangerstation.com/forums/index.php

Loads of swaps done there
There is a Buy/Sell section, like the one at this forum: https://www.ranger-forums.com/classifieds-133/