2jz gte running 1jz harness??

[tysen]

Hello everyone. I have a 91 jza70. The 1j has started to make noise on the bottom end. I could replace it with a 2 jz short block and keep the 1jz head (1.5jz). My question is, can I use the 2jz long block with the 1jz harness?
Both engines are non vvti, and 2jz is from aristo.
I do have a standalone for tuning.
Thanks

 

[Jeff Lange]

Most of the harness will work without too much issue. Things are in the same place for the most part. If you are using a standalone, I am assuming you are running a single turbo? If not, you'd need to add wiring for the sequential twins (or not run sequential twins). A few things may need to be extended/modified slightly, but in general I would think things should work without too much trouble.

Jeff

 

[tysen]

Thanks Jeff. I was unable to find anything definitive on the web.

 

[shipkiller]

2jz run sequential fuel injection while the 1jz is semi-sequential.

 

[hvyman]

If you use the 1jz head everything is the same.

Using the standalone you could wire the injectors to run sequential but it's not nesseccary.

 

[Jeff Lange]

2jz run sequential fuel injection while the 1jz is semi-sequential.

This is true, but not a reason the 2JZ wouldn't run on a 1JZ harness. It would just be running semi-sequential just like the 1JZ.

Something to be aware of when setting up the ECU for sure though. All settings would need to be for a 1JZ, tuning would need to be done for the engine it is running.

Jeff