i need a wiring harness for my 91 auto tracker i have an 89 auto for parts but i think they are different will the 89 fit the 91 and do i need an automatic or could i use a standard i know where they are a few 91-93 parts rigs but they are all standards cant find to many autos

 I have a full wiring diagram, including ECM  pin outs copied from the dealer for an 89 (standard) and I think it's good for 89-93??

 You do need one from an auto cuz there's about 5-6 wires that are different between standard and auto's, they could be converted if you what to change the specific pins and change the matching connector but more work than most people want to do

Now that I'm done blabbing, yes the 89 harness should work as long as their both auto's or both standard

 My .02
 Steve. 

I'm pretty sure that the 89-90 models were different. The EFI is a little different, try PMing Wildgoody, he would know.