i dont know what tx sent you, but most of the time it is a sticking idle control sensor. all you need to do is remove it and give it a good dousing of carb cleaner, and scrub it with an old toothbrush. also spray out the hole it goes into

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