I've read lots of posts on the subject and even the stickies, but I'm at a standstill with wiring. Perhaps I'm making this more complicated than it is.

Here's my scenario...

Donor: 2003 Tacoma w/ R151F
Recipient: 1995 4Runner w/ A340H

The Tacoma's 5VZ engine has a 5-plug harness on it. Three of those plugs go directly into the ECM. Two plugs remain.

Is the entire purpose of the wiring process to take the pins from these two extra engine harness plugs and route them to the two big plugs on the recipient vehicle? In my case this would be IK2 and IK6 (from the donor) to IH1 and IH2 (on the recipient). Is this it? Is that all there is to it? I've documented every pin in a spreadsheet and am having a hard time matching them which leads me to believe I'm doing this wrong. I need some help and I'll even send you my spreadsheet so you can have a look at what I've got. I'm just really confused with this part and the more I read about this process, it doesn't get any clearer for me.

 

Make an adapter harness that goes. 3.0 body female plugs on body to 3.0 male plugs to 3.4 female body plugs to 3.4 male plugs on engine harness. You will have another plug from your adapter harness that goes to ecu and will have ob2 port tee'd onto that as well.



That was my last one. Working on a 96 runner into 87 runner now.

A lot ofthe time you need to look at not just how the pin is labeled but where it goes to and how it functions.

 

Oh and that yellow wire was the starter signal wire. The green coiled wire was for power to obd port and single 2 ft green wire was my ground.

 

I gotta be honest... I don't exactly follow what that means. Neither do two other people I asked.

 

so what you're saying is... you're paying my gas food and lodging to drive over there for a weekend and show you whats up. Sweet..

 

anychance you have any diagrams for that... im currently working on a 1990 toyota pickup v6 with the r150f tranny doing a 3.4 from a 2001 4runner also with the r150f tranny.

 

No. I'm saying I'll drop it off at your house with a bottle of vodka.

 

I bet you will find something useful in this thread

https://www.yotatech.com/forums/f160...-101-a-239002/