hamish_18

So for obd2, look at the digram and find the data link connector on the far right. You will see numbers for each wire. That is the pinout for the connector itself. My connector had numbers on it so it was easy. Just move the pins that you have around to match the diagram. Then the one wire to ecu, and two grounds, and I just used my cig. lighter power wire with a 7.5 fuse inline to the connector. If you have questions too, pm me and I can call you as well. Sometimes explaining it over the phone is easier than trying to write it out.

hamish_18

and I know that we all have been in your shoes. I was the same way. The last few wires are killer. but in the end its sooooo worth it. Last night I went up a hill that I had to do 3rd in my truck. I scooted right up it in 5th. No ting you either.(<----- *edit what did I mean here? LOL) WAY better.

RobD

What he said.

Dewbro91

How long did it take you guys to do your swap? I wanted to do mine over memorial day weekend seeing how I didn't have work. Would I be too crunched for time?

hamish_18

If you are trying to do it in a specified amount of time I doubt you'll make it. Just take your time and double check your work. I did it in probably 12 or so hours all together over the course of 2 days.

RobD

All told, took me about 11 days. Some full, some not as much. I could do it in about half that time now.

hamish_18

agreed. now that I have done it, the next one will be easily in a day. For the wiring that is. I made it way more complex than it needed to be. in the couple weekends that I worked on it, it was being bothered every minute it seemed like. I couldn't just sit down and bust it out.

Dewbro91

Hamish, is the OBDII the one that only has four wires going to it then?

hamish_18

yep. My harness didn't have it wired in for some reason. so I went and stole one from a honda civic at a junkyard. You can get them off any vehicle 96 or newer. just have to re-pin to suite the vehicle. The obd2 is not the one that says diagnostic that is on the intake plenum.

Dewbro91

Cool. Ill get to the junkyard in the next couple days and grab one. So you said two grounds, one power from the cig. lighter, and one to the ECU. Where in the ECU did it come from?

vital22re

iTrader: (2)

dewbro look at the ecu ewd.

Dewbro91

Ok I got the ECU signal wire and power figured out. For the 2 grounds did you just ground them to the body or what?

hamish_18

yep. the metal framing that is in the center there. I used the same screw that screw that annoying buzzer down.

Dewbro91

Sweet I did the exact same thing. How did you go about mounting it? I couldn't figure it out so I walked away before I got pissed off

84Prerunner

not to get off topic here, but on the TIS site it says $15 for 2 days. can you safe the PDFs or are they gone after 2 days? also i know it says 1990 and newer but does anyone know if it has any diagrams for an 84 pickup?
thanks!

RobD

Yes, you can, and should, save all the pdf files you can get your hands on.

No, they don't have diagrams for anything that old, least not while I was on there. Your best bet for those is shop manuals on eBay or there may be someone here with a link to a site that's hosting manuals from '84.

hamish_18

I didn't mount mine. I just have it sitting there behind that lower panel. I have a mobile pc with a touchscreen mounted where the stereo and little cubby are. I have a usb obd2 scanner that is always plugged in. So there was no need to mount it anywhere.

Dewbro91

Got Alot done today. I pulled the ole 3.0 and started swapping everything over. So far I did the motor mounts, oil pan pickup tube and baffle, relocated the dipstick. Now I think that's about all I have to swap over but correct me if i'm wrong. Tomorrow I'm welding my custom crossover and dropping it in then wiring it up. Hopefully everything goes off without a hitch

sam4runner

iTrader: (1)

Don't forget the oil pressure sender(I think that is what it is called). You need to put the one from the 3.0 on the 3.4

Dewbro91

I switched that over as well. I got alot more done yesterday, the crossover is made and fits very well I must say. The engine is in!! I got the motor mounts and tranny bolts in. I started buttoning up the power steering and alt up. Hopefully a key turn by Monday seeing how I won't be working on it this weekend. I'll try to get some pics next time at the shop