jeep cherokee xj hasnt had a carb since the 80's

you said you replaced the tps,Is it properly set? I don't know if the newer ones are adjustable,but my 89 is.i dont know the readings right away or even if it would be the same as mine as well as the procedure to adjust it.Also the )2 sensor don't always throw a code, when mine went it never did either. It couls also be that the iac (idle air control)is sticking. clean the enire throttle body. could also be a partially clogged cat. as you can tell there are numerouse things it could be. just start at one end and start working back until you find the problem.

out of all the jeeps in this town the d**n gremlin had to invade mine

I've done so much,with so little for so long i can practicly do anything with nothing