I want to install a kill switch. Just wondering where a good spot to tap into the EFI is. I tried to go through the fuse box, but after an hour of fiddling with it I decided to ask you guys instead.

By the way I have a 1994 4Runner with a 3.0

 

Why do you have to tap into the EFI?

Here's an idea:

https://www.yotatech.com/forums/show...ht=kill+switch

search around, you might find more

 

EFI, cut the fuel pump. It will require a Bosch type relay and a small switch. In fact, the small rocker type sold from Radio Shack. By turning off the fuel pump, no codes will be set if you crank it wihtout remembering to flip the switch back on.