2005 International 4300 Gas Pedal quits working

Replace the whole pedal assembly, if I remember correctly around that time the tps wasn't the problem, the assembly was. That solved the problem on quite a few.

 

The "gas" pedal, actually called the throttle on diesels, has a sensor that controls throttle application( more gas). Cost for whole pedal assembly about $250, and looks pretty easy to do. Can't make a living at idle,,

 

If you already replaced the sensor, the other thing is run new wiring between the sensor and the engine. Or, trace the wires yourself and see if you can find a bad spot. Start the engine, put a small screwdriver to wedge the throttle down enough to raise the RPM. Then you wiggle wires until the engine drops to idle, this is the location of the bad spot in the wires.

 

Boy, there's on the job training, huh?

 

What faults do you have, knowing that could narrow down the search for the problem. Depending what engine you have the throttle sensor may share signal supply and return with another sensor. The throttle sensor also has an idle validation switch that could cause the problem.

 

Windshield leaking down on to the fuse box ?
This common problem with iH brings out the gremlins.

 

I am very surprised that the engine light came on and there were no logged faults. What engine do you have?