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Author Topic: 1UZ Swap Wiring for stock ECU "Simplified"  (Read 24062 times)

Offline Cebby

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1UZ Swap Wiring for stock ECU "Simplified"
« on: February 02, 2007, 10:23:45 PM »
SuperRunner already has his motor home running and has done the hard part in figuring this out.  He shared this over on Lextreme in my build thread. Certainly some great tech!

Quote from: SuperRunner on Lextreme
Now that's the easy part.

EB2 connector is a 3 pin connector and is near the igniter
EB1 connector is a 6 pin connector and is near the igniter
IJ2 connector is 17 pin connector near the ECU is dark gray, has 2 rows of pins.

You need switched power to EB2(2). This is a black and orange wire.
You need switched power to EB2(3). This is a black and red wire
You need switched power to IJ2(11). This is a black and orange wire.

You need constant power to EB1(4). This is a black and yellow wire


To start you need to supply "start" power to EB2(1) which is a black wire.

And of course you need to figure out what it takes to turn your fuel pump on. Different on every vehicle.


Now isn't that EASY!!!!

This is how you make it run!!

Now let's all breathe a collective sigh of relief...  Whew!!!!!
« Last Edit: February 02, 2007, 10:30:50 PM by Cebby »
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Offline 2uzgte

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Re: 1UZ Swap Wiring for stock ECU "Simplified"
« Reply #1 on: May 20, 2007, 01:17:18 PM »
Just in case Superunner doesn't see my other post


This is all the external wiring that is needed to get the 1uz to start???

To make my question more clear, I could put this motor in a tractor, and hook this wiring up and get it to start!!!???



SuperRunner already has his motor home running and has done the hard part in figuring this out.  He shared this over on Lextreme in my build thread. Certainly some great tech!

Quote from: SuperRunner on Lextreme
Now that's the easy part.

EB2 connector is a 3 pin connector and is near the igniter
EB1 connector is a 6 pin connector and is near the igniter
IJ2 connector is 17 pin connector near the ECU is dark gray, has 2 rows of pins.

You need switched power to EB2(2). This is a black and orange wire.
You need switched power to EB2(3). This is a black and red wire
You need switched power to IJ2(11). This is a black and orange wire.

You need constant power to EB1(4). This is a black and yellow wire


To start you need to supply "start" power to EB2(1) which is a black wire.

And of course you need to figure out what it takes to turn your fuel pump on. Different on every vehicle.


Now isn't that EASY!!!!

This is how you make it run!!

Now let's all breathe a collective sigh of relief...  Whew!!!!!

Offline Cebby

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Re: 1UZ Swap Wiring for stock ECU "Simplified"
« Reply #2 on: May 20, 2007, 04:17:35 PM »
That's what SuperRunner was saying (assuming you have all the related harness/sensors, etc hooked up as it was in the donor vehicle).

5 wires + the fuel pump.  Seems pretty darn easy.  I'll be getting into this in the coming weeks, so I'll let you all know for sure, but I'd trust Rob (SuperRunner).  He knows his stuff!!
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Offline 2uzgte

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Re: 1UZ Swap Wiring for stock ECU "Simplified"
« Reply #3 on: May 20, 2007, 04:59:05 PM »
Sweet!

How about the VVTI engines?

Offline Cebby

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Re: 1UZ Swap Wiring for stock ECU "Simplified"
« Reply #4 on: May 20, 2007, 06:39:37 PM »
I think they would be similar, since the complications of the VVTi system are handled within the factory harness.
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Offline 1uzhilux

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Re: 1UZ Swap Wiring for stock ECU "Simplified"
« Reply #5 on: November 08, 2008, 11:40:22 PM »
Cebby this info was invaluable to me in gettin my hilux project up and running,but i have one question,those 5wires and additional fuelpump stuff do make the engine run and idle fine but there is something else missing to make it rev cleanly,any ideas? Its like it hesitates and you need to stab it a few times to get it to rev which didn't happen when the 2 grey plugs off the main engine loom were plugged in. I have been told by someone that did a 2j conversion to a hilux that he had the same thing happen and theres just one more wire to hook up and it'll run sweet,its definetly not anything to do with the air flow meter as it was already disconnected and removed before this problem,any help would be greatly appreciated thanx mate.