1JZ swap issues

[streetpower]

well i had a friend call me over to check out this swap he was doing on his 1990 Supra turbo auto. i liftes the hood only to see a 1JZ sitting inside the engine bay with wires like crazy going everywhere.
he said my car was sitting in a shop for 5 months and they did not know how to wire it up. me being a good friend knowing little about the Toyota scene my specialty is Rotary's i figured i would help.
so i investigated
1)the engine harness has been extended and is plugged into the 1J ecu the connectors are grey and have 4 rows of pins?
2) the ignitor and the diagnosis port and fuse box has been cut off clean from the harness on the drivers side
3) they gavbe him back his 7m ecu and harness untouched.
4) the 1 jz they installed came with an auto trani which is still mated to the engine and in the vehicle
all he wants is to start the engine.
i looked through all the swap info on the forum and it seams to be relativly straight forward.
my question is what will start this thing up without bothering with gauges and auto trani operation...just the bear minimum just tumble over and start.
thanks
sean

 

[Dr Tweak]

Oh man. If I were you, I would pack those harnesses up and send them to me.

http://www.phoenixtuning.com/

-Doc

 

[bobiseverywhere]

Dr Tweak nice self promo there.

To get it up and running it is pretty strait forward. You don't really need to worry about most of the body connectors.

here is some info so you can see what is related to what

and obviously the vac lines
Make sure you have what you need first and get back to me i'll give you what ever help i can

 

[streetpower]

Dr Tweak nice self promo there.

To get it up and running it is pretty strait forward. You don't really need to worry about most of the body connectors.

here is some info so you can see what is related to what

and obviously the vac lines
Make sure you have what you need first and get back to me i'll give you what ever help i can

great info i am going to check it out

 

[streetpower]

okay i inspected the car today the vin tag says it is a MA70 the harness is a 7m the 1jz has an auto trani athached to it oil pan sump is in the rear the ecu connectors have 4 rows of wires on the plugs.
i read all the write ups on the forums and found AF1Jz write upto be very simple
i located the C1 plug at the fuse box, the M1 plug, B1 plug and B2 plug and understand the wires i need
but i have a couple of questions......
how do i distinguish the plug EB2, EB1,IJ1, IJ2, IK1, IK2 from the 1 j harness i have
this is the write up i am following from AF1JZ post
thanks guys
Sean

There are two plugs on Driver side near Junction Block #2, a 3 wire plug and 7 wire plug

3 wire plug EB2

• Black – yellow from old alternator plug and black from EB1
• White – white from old alternator plug
• Black/Red – Black/Red from C1 plug and Black/Red from EB1

7 wire plug EB1

• Blue –Blue from old AC connector
• White – White of C1 plug
• Black/Red – Black/Red of C1 plug and Black/Red of EB2
• Black – Black of EB2 and Yellow of old alt plug
• Black/Orange – Black/Orange of C1 plug
• Black/Yellow – Black/Yellow of C1 plug


Next you are going to be using wires from engine harness are IJ1, IJ2, IK1, IK2
7M plugs that you are going to use from inside the glove box are M1, B1, B2


Wiring the M1 plug is mainly for your gauges
• Brown – Brown from IK2 (ground for cluster)
• Yellow/Black – Yellow/Black from IK1 (Oil pressure gauge)
• Grey/Green – Blue/Yellow of IK1 and Yellow/Green from IJ1 (Engine Light)
• Purple – Black/Yellow from IJ2 (12v switch, alt to charge batt)
• Red/Black – Red/Black from IK1 (Reverse lights)
• Yellow – Yellow from IJ2 and Red/Blue IJ1 (Speed sensor)
• Yellow/Green – Yellow/Green from IK1 (Water Temp Gauge)
• Pink – Pink from IJ2 (Speed)
• Black – Black from IK1 (Tach)

Wiring the B1 plug is mainly for ignition and fuel
• Green – Brown from IK2 (Ground for Fuel Pump)
• Black/Blue – Black from IK2 (NSW)
• White – Blue from IK1 (AT Switch)
• Black/Red small – Green from IJ1 (Fuel)
• Black/Orange small – Black/Orange from IJ2 (switched power, ignition)
• Black/White big – Small Black/White from IJ1 (Starter)
• Black/Yellow – Black/Yellow from plug on engine harness loom (VSV Water)
• Yellow – Red/Green from IJ1 (Fuel)
• Red/Yellow – Red/Yellow from IJ1 (ELS)
• Black/Orange big – both Black/Orange from IJ1 (Switched power, ignition)
• Black/Red big – Black/Red from IJ1 (Fuel Main)

Wiring the B2 plug
• Blue – White from IK1
• Green – Green from IK2
• Yellow/Blue Red IJ2

 

[935motorsports]

2) the ignitor and the diagnosis port and fuse box has been cut off clean from the harness on the drivers side

That is a HUGE problem. Do you have the other end of it? If not, give up on that harness right now.

 

[streetpower]

Yes i have the other half of the harness i already matched up most wires and connected see pic

 

[streetpower]

so what about these plugs EB2, EB1,IJ1, IJ2, IK1, IK2 how do i distinguish them ?
are these plugs on my harness remenber i have a 1jz with an auto trans and the ecu connectors have 4 rows of wires not 2 .
sean

 

[JonoTurbo]

One thing I can tell you is that it's probably a soarer engine, with 4 rows of pins on the ECU connector. I don't recognize any of the plugs you are referring to, but they're probably soarer plugs. I do know that for the car to start all you have to do is wire in the EA2 (fusebox wires) and the IH1 connector under the dash. Of course with the ignitor cut off that needs to be fixed too.

 

[lagged]

wow that looks like a real headache. but dont give up it can be fixed.

 

[AF1JZ]

Just so you know if you don't already, the wiring instructions are for a wiring harnes from a soarer 1jz. I just wanted to make that clear so you don't hook stuff up wrong. Does the 1jz in the supra a soarer (mech. fan) or supra (hydrofan) 1jz?

 

[JonoTurbo]

Also I just noticed you have a regular 1jz EA2 plug, it's the plug thats sitting right behind the corner of the fusebox in your picture. If you have enough of the harness, I recommend this method of wiring in the fusebox:

http://www.supramania.com/forums/showthread.php?t=36020

 

[streetpower]

Just so you know if you don't already, the wiring instructions are for a wiring harnes from a soarer 1jz. I just wanted to make that clear so you don't hook stuff up wrong. Does the 1jz in the supra a soarer (mech. fan) or supra (hydrofan) 1jz?

i do not know because ther is no fan on the engine or anywhere.
the guy that put the engine in the vehicle claimed the 1jz engine came from a jdm supra frt cut. for some reason i want to belive it is from a soarer is there any other way to make sure of it.?

 

[Ds650rida]

there is a dimple or something on the soarer mounts, dont quote me on that, but there should be some pressure lines coming off the water pump if i'm not mistaken. but it could have been swapped with a 2j pump.

 

[streetpower]

Also I just noticed you have a regular 1jz EA2 plug, it's the plug thats sitting right behind the corner of the fusebox in your picture. If you have enough of the harness, I recommend this method of wiring in the fusebox:

http://www.supramania.com/forums/showthread.php?t=36020

ok sodo i need a 1jz fuse box of of a frt cut or do i use the 7m fusebox in the car?

 

[JonoTurbo]

ok sodo i need a 1jz fuse box of of a frt cut or do i use the 7m fusebox in the car?

Doesn't matter, the 1jz fusebox and the 7m fusebox are the same.

 

[streetpower]

Doesn't matter, the 1jz fusebox and the 7m fusebox are the same.

i guess i shuold have read the complete tread.
so can i take the female portion of the ea2 plug and match the 3 alternator wires by color and extended over to the alternator.
i assume...that the ring terminal on the alternator needs to be extended to the alternator as well...

 

[JonoTurbo]

i guess i shuold have read the complete tread.
so can i take the female portion of the ea2 plug and match the 3 alternator wires by color and extended over to the alternator.
i assume...that the ring terminal on the alternator needs to be extended to the alternator as well...

You don't have to extend them to the alternator, the EA2 plug on the engine harness has those wires in it, so you have to connect the wires from the body portion of the plug to the same color wires on the supra body harness. The only wire you have to extend is the ring terminal.

 

[streetpower]

You don't have to extend them to the alternator, the EA2 plug on the engine harness has those wires in it, so you have to connect the wires from the body portion of the plug to the same color wires on the supra body harness. The only wire you have to extend is the ring terminal.

okay i am going to do this today....
still got more unsolved issues ...
thanks
sean

 

[streetpower]

okay so i wired up the igniter matched the wires but i have about 12 wires left back from the harness where the ignitor and the diagnosis connector is athached i want to assume that those wires are going to the JDM fuse box?
if it is do they splice into the ea2 connector as well or is the ea2 connector with 6 wires only for the alternator wiring?
i will take a pic and post today.