CHEVROLET SILVERADO GAS PEDAL

94 7.3 Backfires Through Tb, Replaced Map Sensor, Tps, Fuel Pump, Cap& Rotor, Wires Truck Is A 1 Ton With 7.3

After My Truck Warms Up Or Drives Over 5 Miles There's A Hard Hesitation Like Its Starving For Fuel Or Too Much Fuel When I Step On The Gas...

Getting An Occasional Check Engine Light. Goes On And Then Goes Off. My Obdii Reader Says: "throttle/pedal Position Sensor A Circuit...