3.4 Swaps The 3.4 V6 Toyota engine

3.4 ?

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Old May 7, 2009 | 03:16 PM
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Houston5's Avatar
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From: JAX,FL
Question 3.4 ?

I have tried to read about every thread on the net regarding this swap but there is one ?Ican get a clear answer on or find.Will a 2wd 3.4 5speed work in a 89 4runner 4wd 5speed?I know that I will need a harness and all the other parts everyone has listed just was wondering about the 2wd to 4wd part,LOVE THE SITE great info everywhere.
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Old May 7, 2009 | 03:53 PM
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From: Woodinville, wa
obviously havent read enough

Yes it can be done and will bolt to a 3.0 v6 5sp tranny the r150f or a 22ret r151f. the comp will not be affected on the 3.4 if you bolt a 4x4 5spd tranny to it

Get your 3.4 with its original harness and comp do not try and mismatch or you will have nightmares trust me. You can use the harness and computer from the 2wd 3.4 and bolt that thing right in
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Old May 7, 2009 | 03:55 PM
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From: Woodinville, wa
Just for your information I used a 2wd ECU with my swap when I did it awhile back and I had 4wd
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Old May 8, 2009 | 03:31 AM
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Originally Posted by fillsrunner4
Just for your information I used a 2wd ECU with my swap when I did it awhile back and I had 4wd
Thanks for the info I was mainly needing to know about the ECU.I didn't no if it would work with the 4wd THANKS
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Old May 8, 2009 | 07:04 PM
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Since the computer doesn't control any of your transfer case's functions, I'm pretty sure it won't matter.

The only thing I can see, and it's just a wild guess, is your dash light not indicating when you're in 4 wheel drive. I'd have to look at the wiring diagrams, but they're on my other computer.

My light doesn't come on, but I'm pretty sure that's just a wiring thing, since I do have a 4x4 ECU with mine. I just look down at the transfer case shift lever to see if I'm in 4x4 or not!
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