2jz with 1jz ecu

[1jzr32]

Hi All
Currently I'm running 1jz manual in to my R32 & plan to swap the 2jz complete block & head. My concern
1. Can I use the existing 1jz ECU & loom (I'm worry on the both 1jz & 2jz stroke re different)
2. If NO, can I use 2jz ECU in 1jz loom by changing the ECU pin lay-out

All this concern due I got 2jz complete engine BUT without ECU harness & transmission.

Thanks in advance.

 

[1jzr32]

anyone please

 

[viperkillertt]

Hi All
Currently I'm running 1jz manual in to my R32 & plan to swap the 2jz complete block & head. My concern
1. Can I use the existing 1jz ECU & loom (I'm worry on the both 1jz & 2jz stroke re different)
2. If NO, can I use 2jz ECU in 1jz loom by changing the ECU pin lay-out

All this concern due I got 2jz complete engine BUT without ECU harness & transmission.

Thanks in advance.

The wiring does work, and i believe the ecu works also. I am not 100 percent sure about the ecu, but wiring is a ok.

 

[tissimo]

yea itll work

 

[1jzr32]

As i know both are different storke & any issue on this ?

 

[viperkillertt]

As i know both are different storke & any issue on this ?

what issue are you wondering about?

 

[tlo86]

dont think you can rev to the 1jz's rev limit you'll be stuck at the 2jz's lower rev limit

 

[1jzr32]

I'm confuse about spark trigger between the stroke differencess not the rev limit.

 

[annoyingrob]

dont think you can rev to the 1jz's rev limit you'll be stuck at the 2jz's lower rev limit

Why not. I do it.




With the 2JZ's increased stroke, you're going to have 20% more volume than the ECU thinks. To compensate, you need 20% larger fuel injectors (440cc will be close enough).

Everything else will be fine.

 

[1jzr32]

Why not. I do it.




With the 2JZ's increased stroke, you're going to have 20% more volume than the ECU thinks. To compensate, you need 20% larger fuel injectors (440cc will be close enough).

Everything else will be fine.

Thanks for the details repply & I will do it.

 

[tlo86]

ok the broken english is confusing, you have a 2jz in your car and want to use a 1jz ecu?

 

[1jzr32]

In my r32 i have complete 1jz with full ecu wiring & ecu but I'm plan to swap the 2jz engine & remain the 1jz ecu wiring & ecu.
This 2jz engine i bought without engine wiring.

 

[annoyingrob]

you'll have to do something with the gauge temperature sensor in the water neck.

The 1JZ sensor is too big to fit into the 2JZ motor, and the 2JZ sensor has a different connector on it.

The oil pressure sensor is different too, but they can be interchanged.

Other than that, wiring is pretty much plug for plug.

 

[tsuper92]

everything from my 1jz harness pluged into my usdm 2j.i did swap out the upper intake for a jdm one because it has the air intake temp sensor.