I'll try to get back with the #'s today. I spend too much time computin' and not enough werkin', so if this falls asleep, wake me up with a PM. This could turn out pretty cool. Y'day I finished up the Intake side, todayI'll do the exhaust. I checked out the places the wires hook up ("ECU pinouts") (?)  and some are the same. I have to go to the FSM to I.D. them. I'll post some pics with questions when I get this current project done. Cool thing is, I picked up the Aerio ECU too!

Rhinoman,
Here's the '02 Tracker's
http://www.witchhunter.com/flowdatapix/dinp-771.jpg

The Aerio's look like these under "JECS Top Feed", but I can't find "JS28-2" They look more like the Nikki's too. No red ones there.
http://www.witchhunter.com/flowdatapix/Jjs21-1.jpg

 This thread confirms what I thought with a swap I did in my last Sidekick Sport! It had a 1.8 that used a throttle body about the size of the one from the Aerio. I put the manifolds and electronics from the 1.8 on the 99 Tracker 2.0 and the thing ran like a beast! I couldn't tell you what color injectors it had... But I do plan on getting another Sport and doing that swap again, only this time I will pay attention to the injector color... Maybe I can get more than 150 horse out of this next setup... 

Can't you use the oil pan and pickup along with a manifold and exhaust from the 1.8/2.0 L and put it on a 2.3?