3.4 Swaps The 3.4 V6 Toyota engine

My first 3vz-e to 5vzfe conversion in my sas'd 4runner(any pointers appreciated)

Old 05-02-2013, 06:28 PM
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Fwiw, the wiring is NOT the same 90-95, so don't try and grab any ol wiring diagram for your swap. Get the right year.
Old 05-02-2013, 06:31 PM
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Originally Posted by DeathCougar
Fwiw, the wiring is NOT the same 90-95, so don't try and grab any ol wiring diagram for your swap. Get the right year.
Thanks bro! It's a 95 and the engine is a 99 so ill make sure my diagrams match up
Old 05-11-2013, 02:45 PM
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Built my crossover pipe today =]
Old 05-12-2013, 11:38 AM
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From experience I'll tell you crossing the exhaust into itself is a bad idea. The exhaust on the 3.0 (which crossed back into itself, then out) is one of the reasons they blew head gaskets all the time.

However, welds look good and you're doing on your own so good on ya!
Old 05-12-2013, 11:50 AM
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Thanks for the heads up!

Last edited by Sas954unner; 05-15-2013 at 01:49 AM.
Old 05-15-2013, 01:51 AM
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Originally Posted by DeathCougar
From experience I'll tell you crossing the exhaust into itself is a bad idea. The exhaust on the 3.0 (which crossed back into itself, then out) is one of the reasons they blew head gaskets all the time.

However, welds look good and you're doing on your own so good on ya!
I've been told this by 2 other members. So I decided to start from scratch and try try again. Buying some mandrel ubends today and building a new one tonight .
Old 05-15-2013, 02:15 AM
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Where is the best place to find wiring diagrams/ecu pinpoints for a 95 m/t 4runner and a 99 m/t 4runner?
I'm hoping a Chilton/ Haynes manual will have it.
Planning on checking auto zone today,
Where is everybody else getting their wiring schematics???
Old 05-15-2013, 09:25 AM
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www.techinfo.toyota.com/‎

Search around, it's been explained numerous times.
Old 05-15-2013, 11:38 AM
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[QUOTE=SacRunner;52077389]www.techinfo.toyota.com/‎

Search around, it's been explained numerous times

The site you listed you have to pay for, believe me I've been looking
Old 05-15-2013, 11:57 AM
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Yeah, I paid $15 for a 2-day pass and downloaded as much as I could figure I'd need. Probably going to have to do it again later in the project as I seem to be missing something but, if you're more careful than me, you probably won't have to.
Old 05-15-2013, 12:28 PM
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Originally Posted by Sas954unner
The site you listed you have to pay for, believe me I've been looking
It's the best $15 you'll spend on the entire project.

You can get all the FSMs and EWDs for any Toyota vehicle 1990 and newer as well as all the various service bulletins, recall notices, and ANY literature Toyota has ever sent to the various dealers' service departments.

The widely accepted recommendation (hence the "search around" comment) is to download all the FSMs and EWDs for both your truck and the donor truck. If you're using parts from various years or models be sure to grab the relevant information/documents for those applications too.
Old 05-15-2013, 01:26 PM
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Awesome! I'm heading to radio shack now to get a new soldering iron and some shrink wrap tubing and a roll of solder, when I get home I'm ordering a 2day pass and I'm gonna start building this harness ASAP.
I got lucky today and found a local dirt modified superstore and ended up buying two u-bends of 2 1/4 which will slide perfectly inside the piping I already used to build my first failed attempt of a crossover pipe my plan is to cut out the last elbow that drops the exhaust too close to the other manifold, patch the hole and dump it lower in the exhaust.
Coming along day by day it's just alot more work than I originally envisioned
I started out building Hondas at a young age and they are 10x easier than this.
Old 05-19-2013, 09:00 PM
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I think you want to make something like this for the cross over pipe to join the other side.

I bought this from Autozone for about 100. works great.
Old 05-20-2013, 03:38 AM
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Originally Posted by anthony1
I think you want to make something like this for the cross over pipe to join the other side.

I bought this from Autozone for about 100. works great.
Thanks but I already have 2 ubends of 2 1/4 for $30 .I'm already planning on notching the pipe and building my own Y connection.
Great info, I'm just to cheap to go that route.
Old 05-20-2013, 03:43 AM
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Wiring



Progress on my wiring
I bought a piece of construction paper drew a big line down the center.
On the right are all my 99 engine and ecu connections
And on the left will be all of my cab connections
I'm already done with the right side and I've made all of my internal connections
Tonight I move onto my cab and diagnostic port connections.
Old 05-20-2013, 05:40 PM
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I'm just showing you the pic of what it suppose to look like. I figured you can make one.
keep going with swap. You'll be driving it before you know it....
Mine took a year...
Old 05-20-2013, 06:58 PM
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Getting there with the wiring I still have 2 cab connections to figure out and
tying in the diagnostic port.
Old 05-21-2013, 09:23 AM
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Good thing you're not color blind like me.....I just use an ohm meter for most of it.
Old 05-21-2013, 08:21 PM
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Let the soldering begin! I soldered and shrink wrapped all the basic connections tonight tomorrow I'm going back over everything one last time before I solder the rest but it's 1230 and I have to be up at 5am so goodnight yotatech!

Last edited by Sas954unner; 05-21-2013 at 08:23 PM.
Old 05-22-2013, 04:32 PM
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Figuring out the COR and EFI relay

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