92 eg w/ b16a2. started cutting out like the motor will shut of for a second and come back on. it will randomly do it. always dose it below 3500 rpm and 50% or less throttle. never had this problem till about 2 weeks after i put a new tps on it. i would put the old one on but it broke.

 

Sounds like this one is gonna be kinda hard to find, hopefully one day it will break (at your house) so you can finally find the problem.

It could be something simple like a loose connector or a loose ground, I would do a check on all of those if you haven't. Also, if your car is chipped, make sure the chip is in all the way, that has happened to me before.