I am installing a used TPI system with a painless wiring harness into my 350 powered 1988 mazda rx7. The TPI was from a 90 Vette origionallly, and was swapped into a Jeep and run for a few years. I just recently bought it and polished it up.

Everything has gone smoothly so far, except for the wiring of the little black vats box. There are three wires on it. I know that one is supposed to attach to the purple wire on the harness, but which one? And what do the other two go to? I hate to just hook them up to power and ground and fry something. I had to get the wiring instructions from the Painless website, and have read the whole website several times now. I used the search function, but found nothing on the forum.

I will attach a pic of the module in question.

Thanks in advance for your help.

http://www.home.earthlink.net/~jnrwacker/

 

sorry here is the pic!!!

 

Also, does the fuel pump relay turn the fuel pump on and off as needed, or does it just leave it running? I already have the pump wired from my previous setup, and it would be nice if i didnt have to change it.

 

I just put a '92 computer onto my 350 TPI in my '87 Monte Carlo SS. I didn't even need that vats module and also since I don't have the ignition hardware and matching coded key, I had a friend burn me a new chip with VATS disabled...

 

I wish i had a friend that could "just burn me a chip". But that is not a feesable option for me.

Unless there is someone here from the Memphis area that does PROM burning.

 

I spoke with Painless Performance, and the RED wire goes to a 5v source (pulled from the TPS), the BLACK wire is ground, and the GREY wire goes to the vats wire ion the harness.

Thanks for the replies.......

 

I was just checking out your site. You have to put more pictures of your swap up. I would love to see it...

 

I dont know if i would call it a "site" but i will try to add some this evening after dinner.