97 5.2 Ram 1500 Stalls When Starting

Can Anyone Help? My Truck Immediately Stalls When Started After Sitting For A While. The Fuel Pump Went Out So I Changed That, I Wanted To Do Some Gm Since My Gas Mileage Seemed Low So I Changed The Cap, Rotor Plugs, Wires, Air Filter, Coolant And Thermostat. The Problem Seemed To Be The Iac So I Changed It. The Truck Ran Great For A While But Now The Problem Is Back. Can It Be The Tps? Any Help Would Be Appreciated It's Driving Me Nuts!

Yeah you're right it's probably the TPS.