hvyman;2052237 said:
its just a spade connector. just cover it back up with the boot after.
A spade might work, but the oem terminal has a detent that helps lock onto the sensor. You'd probably be ok without it, but you'd risk them vibrating apart. It would suck to have it come off while driving. You wouldn't know if you just had catastrophic engine failure or a simple loose wire. And that's not an easy wire to check roadside on a hot engine.
Op: maybe you want to ask tweak'd (Cam) if he knows of an aftermarket solution since Toyota doesn't offer it.
When I redid my harness I stole a connector from a donor harness and used a new terminal, but it requires some modification to fit just right.