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Anyone here with a 2JZ-GTE vvti swap?

Waffle

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Joined
Sep 6, 2016
Messages
210
Its a long shot but what the hell. Trying to help out a friend with a pickup/2jz swap, specifically the main wiring circuits to/from the ECU & building a standalone fuse block for one. There's just so much garbage on the net and it appears nearly everyone just applies 12v+ to **** and sends it.
All I have for internet at the moment is my phone, so I'm just about useless.

Anyone here done this specific swap and willing to answer a few questions?
 

Waffle

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Joined
Sep 6, 2016
Messages
210
Swap is probably 50% completed at this point. Engine/clutch/flywheel is in and cases are all 23 spline with 4.3 gears in the 2nd one. Winch is in. Intercooler & IC plumbing are next. Radiator will go in the back. Lots of odds & ends to complete but it's slowly getting there.
 

Waffle

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Sep 6, 2016
Messages
210
Standalone not an option ?
He doesn't want to spend $1000+ for one. I think it's a good investment myself since it'll show up with a new panel, new wire and new connectors, but he's isn't willing.

His issue is compounded because he has a JDM spec 2JZ and he's trying to wire it up thru a cut Aristo body harness. All schematics are in Japanese and the directions people give are horrific.

They'll say things like "switched power here and there" but fail to tell you what amperage rating the fuse & relay should be, or they'll just make no mention of them altogether.
 
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Waffle

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Sep 6, 2016
Messages
210
For instance.......I recently watched a 20min Youtube vid from a guy who claimed to tell you everything one needed to know and he made it because he was sick of piecing together stuff from everyone else's bad info, yet he only mentions ONE fuse in the entire vid, and no mention of relays at all. No mention of flowpath (ie: on a 2JZ the efi relay is turned on/off by the ecu itself).

To top it all off I'm trying to do this using my phone that gets poor service the moment I walk into his garage.

I Bow Out!
true-grit-bridges.jpg
 
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TBItoy

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Jul 2, 2010
Messages
10,743
Location
Dodson Branch, TN
Yep, sounds like he did the easy and fun part of the engine swap and isn’t ready to put in the effort for the suck parts. Plus engine choice...
 

Waffle

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Sep 6, 2016
Messages
210
I tried talking him into an LS but he wasn't having it.
 
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TBItoy

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Jul 2, 2010
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10,743
Location
Dodson Branch, TN
I used to try to talk people out of 2JZ swaps too. But I don't personally know anyone that got past the parts gathering phase.
 

Bebop

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Joined
Jan 27, 2013
Messages
1,815
He doesn't want to spend $1000+ for one. I think it's a good investment myself since it'll show up with a new panel, new wire and new connectors, but he's isn't willing.

His issue is compounded because he has a JDM spec 2JZ and he's trying to wire it up thru a cut Aristo body harness. All schematics are in Japanese and the directions people give are horrific.

They'll say things like "switched power here and there" but fail to tell you what amperage rating the fuse & relay should be, or they'll just make no mention of them altogether.

Seems to me that he's finding out why people get standalone stuff.
 

gs300tt

New Member
Joined
Jun 16, 2016
Messages
2
See if these will help
 

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Waffle

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Joined
Sep 6, 2016
Messages
210
See if these will help
I'll look at em and see if I can eliminate some roadblocks. Looks like I can based on what I see so far, then perhaps I can narrow it down to something more manageable. Thanks.
 

Waffle

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Joined
Sep 6, 2016
Messages
210
I know you said he didn't want to go stand alone, but ecu masters makes a kick ass plug and play adaptor.
Yeah, plug n play directly into their aftermarket ECU. That's even more than a harness. I get what your saying though. I do.

One thing in particular that I cannot stand about the 2JZ-GTE vvti ECU is that non of it is waterproof. Not the ECU or any of its 5 plugs, so it all gets mounted inside a seperate Aristo ECU box behind the drivers headlight. Talk about a tight fit, lol. I would have liked to see him go aftermarket for this reason alone.
 

Waffle

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Joined
Sep 6, 2016
Messages
210
I think gs300tt triggered something with those schematics cause I think I'm starting to understand the big picture here.
I looked them over quite a bit, went back over the wilbo666 site and looked closely at a standalone vvti harness

I'm fairly certain I can wire power to the engine and Tweakd fuel pump controller (if Tweakd uses 20a relay, not 35a, dnt kno yet) using a 280 GEP 24 position waterproof pdm. This gives me space to hardwire two 35a relays, one 20a relay and 4 mini fuses into the smallest possible footprint.

1 30a fuse to protect EFI relay 1 and supply constant power to ECU
1 35a relay for EFI 1 circuit
1 30a fuse to protect EFI relay 2
1 35a relay for EFI 2 circuit
1 15a fuse to protect ETCS-i circuit
1 XXX fuse to protect fuel pump relay
1 XXX relay to control fuel pump
Screenshot_20210714-024845_Samsung Internet.jpg
 
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Waffle

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Joined
Sep 6, 2016
Messages
210
This is the 2JZ-GTE vvti pinout. To power the engine you'll be messing with the two right side connectors only. F59 and F60. Thank goodness this swap is a 5speed and I'll be able to remove a crazy number of automatic pins.
20210622_202317.png
 
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Waffle

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Joined
Sep 6, 2016
Messages
210
Only one pin on the F59 connector requires work. STA is the starter signal input pin. Connect this directly to the small plug on the starter coil so the ECU knows when the engine is attempting to start.
20210714_031937.png
 

Waffle

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Joined
Sep 6, 2016
Messages
210
F60 pin 1, BATT, input. This gets constant 12v+ for ECU memory. Power to this pin comes from the 30a efi 1 fuse.
20210714_032747.png
 

Waffle

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Joined
Sep 6, 2016
Messages
210
F60 pin 7, +BM, input, This pin gets constant 12v+ from a 15a fuse to power the ETCS-i
(Electronic Throttle Control System)
20210714_033327.png
 

Waffle

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Joined
Sep 6, 2016
Messages
210
F60 pin 8, +B2, input, EFI main relay switched power input, this pin gets 12v+ switched from 35a EFI relay 1 when relay is energised. Note: EFI relay is triggered by 12v+ pin 10 M-REL, use 30a fuse to protect relay
20210714_033809.png
 

Waffle

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Joined
Sep 6, 2016
Messages
210
F60 pin 9 IGSW, input, Ignition switch, when ignition switch is in (run and crank), 12v+ is switched to this pin. This turns on the ECU
20210714_034534.png
 

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