3.4 Swap Harness Spreadsheet Review
#1
3.4 Swap Harness Spreadsheet Review
Hi all, first 3.4 swap, 99 4Runner Manual into a 91 Pickup 3.0 Manual. I have the EWD's from TIS, have created a spreadsheet, have my plugs and am ready to solder. I was wondering if anyone who is experienced at this is willing to review my spreadsheet and let me know if it looks right. Now I know there are many variances for year/manual/auto/etc. But the basics are quite similar and if you have done this enough I gather a quick look should be enough to say yeah, that makes sense, or wow he is out to lunch.
Anyways, if anyone is willing to review before I start to solder, please send me a PM. I just want to make sure i don't make any smoke when I turn the key!
Thanks,
Ian
Anyways, if anyone is willing to review before I start to solder, please send me a PM. I just want to make sure i don't make any smoke when I turn the key!
Thanks,
Ian
#5
Well here is the final revision. Hope its right! Please let me know if anything looks wrong.
Yellow means not using (at least not yet)
Yellow means not using (at least not yet)
Last edited by ianjadkins; 02-02-2017 at 04:43 AM.
#6
Registered User
I am swapping a 99 4runner manual into my 88, so I am familiar with half of your wiring. I was able to get my 4wd indicator to work by:
https://drive.google.com/open?id=1xl...OB9zTEjZV987uU
- grounding II3 (17) to the passenger kick panel
- connecting II3 (1) to your body harness's 4wd indicator line, also spliced here a connection to E12 (18) to let the ECU know, only because that is what the diagrams seemed to suggest it was like stock, probably not needed.
- Make sure you have swapped connectors and attached your transfercase 4wd switch to the new engine harness
https://drive.google.com/open?id=1xl...OB9zTEjZV987uU
#7
I am swapping a 99 4runner manual into my 88, so I am familiar with half of your wiring. I was able to get my 4wd indicator to work by:
https://drive.google.com/open?id=1xl...OB9zTEjZV987uU
- grounding II3 (17) to the passenger kick panel
- connecting II3 (1) to your body harness's 4wd indicator line, also spliced here a connection to E12 (18) to let the ECU know, only because that is what the diagrams seemed to suggest it was like stock, probably not needed.
- Make sure you have swapped connectors and attached your transfercase 4wd switch to the new engine harness
https://drive.google.com/open?id=1xl...OB9zTEjZV987uU
Trending Topics
#9
I reviewed your spreadsheet, and its a good thing i did! I had B+ going to the ECM (E14) and the engine (II3), but I never actually provided a source from the truck harness. Glad I caught that before I plugged it all in and turned the key! Would be a lot of cranking and no starting! So thanks for saving me hours of trouble shooting! There were 2 other differences, but I will look into it when I get home, I think it may just be because of the differences in harnesses between 88 and 91.
#10
Registered User
Haha yeah that would have been fun to track down. I imagine the other differences are because of the 88 vs 91 changes. 88 was the first year of the 3.0 and it seems to not match much compared to some other years. Good luck finishing up the harness, you are close!
#13
Last edited by lyon00; 02-15-2023 at 12:10 AM.
#15
I know this was from awhile ago, but how did you find all the functions of every pin? I've been able to trace most pins but a handful I can't find in the EWD's that I have. Is there a diagram or something that you used. My plugs don't match these ones because I have an auto so I can't reference this, just want to know how you found the functions.
Thread
Thread Starter
Forum
Replies
Last Post