My 2003 7.3 has been kinda lurching and cutting out while i have been driving. i replaced the camshaft postion sensor, fuel filter and it didnt help. Ran a couple of tanks of additve,didnt help. So i took it to a diesel shop and they replaced some pressure clips under the valve cover

and the ipr valve. The was a $640 bill at the shop alone. but it still didnt fix my problem so i called him back and i brought it back to him and we took it for a test drive showed him what i thought was wrong and he said his computer was saying the throttle position sensor. so im gunna have him put one on tommrow. this problem is really costing alot anyone know if this would fix the problem or does anyone have another suggestion?