1994 Ford Escort STUDDER AND LOSS OF POWER UP HILLS OR HIGH

I FOUND THAT SOMEONE ELSE WAS HAVING THE SAME PROBLEM WE ARE WITH THE SAME CAR. RACEFAN966 WAS HELPING THEM BUT NO ONE POSTED THE SOULUTION TO THE CAR PROBLEM. THE PERSON WAS PATMAN242. ANY WAYS MY SONS CAR JERKS AND SPUTTERS LIKE IT IS STARVING AT HIGH DEMAND AND HILLS. WE HAVE NEW PLUGS & WIRES, AIR FILTER, FUEL FILTER, , PCV VALVE AND HOSE, CLEANED MASS AIR FLOW SENSOR. I SAW THE IT WAS SUGGESTED TO TEST THE THROTTLE POSSITION SENSOR SO WE DID AND THE RESULTS ARE .68 VOLTS AT NO THROTTLE, 5.06 OR 5.15 AT FULL THROTTLE NO DROPS IN VOLTAGE OR ANY GLITCHES WHILE INCREASING THE THROTTLE. HOWEVER WE DONT KNOW IF THIS MEANS IT IS BAD BECAUSE IT FALL OUTSIDE OF THE READINGS.