Stalling

I have a 1992 Jeep Cherokee with the 4.0 I6 in her. I have 199,xxx miles and i cant wait to hit 200,000. I have recently developed a problem, when i start her up for the first time of the day she revs up like she is supposed to then goes down below 1,000 stuters then stalls. what can i do about that? i recently changed plugs and wires and cap and rotor button but it was stalling before i changed them. Any ideas??i think it maybe in the fuel ine but not sure...thanks!

Check The TPS, Idle Stepper Motor.

Im not sure how to do that. Where is that located at on the engine and how do i check it?