my 95 tracker has the complete drivetrain and wiring harness from an 89 sidekick in it, so I am going to say yes. There isnt anything I can think of in the tracker that doesnt have a wire going to it and is supposed to, either.
In that case it will not work. The sensor configuration is different and some connectors are different. You will need the harness from the tracker you get the engine from, too. In Daxe's case, we swapped the entire drivetrain and harness from the '89 to the '95, that's why it worked.