96 Cherokee starting problems

:mad:Hello, my wife's 96 Cherokee (4.0) will at random, not start without using the gas pedal to keep engine at about 1,000 rpm, I then must put my foot on the brake, put it in drive and after driving only about one-half mile every thing is ok and it will idle on its own. I have replaced: fuel pump, fuel pressure regulator (in tank), gas line fuel filter, crank position sensor, 02 sensor, plugs & plug wires, but these have not stopped the problem. Mileage is 62,000. Please, if anyone can help with suggestions, thanks!

Throttle position sensor. and clean the idle air control valve.

^^ what he said ;)