First time posting, I've used your advice on many previous issues reading different forums and such. Hopefully you can shoot a clear answer for me here cause I'm stuck.

1999 Dodge Cummins, I've had periodic dead pedal for the last 2 years. Would drop to an idle at highway speed and no throttle response. Shut truck off, turn back on, problem went away. 

Now the truck is stuck at a slightly high idle at 1,100 RPM. No Throttle response at all. I just replaced APPS with Napa replacement. No different.

-Vp44 replaced 3 years ago

 

Some other history:

-one day no gauges worked and got (No Bus) on odometer. Next day "problem fixed itself"

-A month ago the Wait to Start light would not come on before start up. But once running voltage would draw like grid heater was working while running. A week later "problem fixed itself". Wait to Start works fine.

So after this extremely long post (sorry) are these symptoms of a faulty ECM?? 

 

Good to hear that its not something worse. 

I just calibrated the APPS. Truck seems to be fixed. Idled at 850, and have throttle response. 

Is it possible that me not calibrating the new sensor was the issue?

6 minutes ago, DooLittleDiesel said:

I just calibrated the APPS. Truck seems to be fixed. Idled at 850, and have throttle response. 

Is it possible that me not calibrating the new sensor was the issue?

It could be. @Mopar1973Man can tell you for sure! 

Very possible the fact you attempted to run the new APPS sensor without calibration would cause this issue. 

Thanks for the help everyone, the truck seems to be running normal today! 

1 hour ago, DooLittleDiesel said:

Thanks for the help everyone, the truck seems to be running normal today! 

Good to hear!