Cummins n14, fuel peddle dead, changed the TPS and Harness

Will it idle up with cruise control?

 

Did you change the accelerator pedal itself, the pedal has a built in potentiometer that receives two reference voltages from the Engine Control Module (ECM), having two ground wires and two signal wires that send a varying voltage back to the ECM relating to accelerator pedal position.

Over time the pedal can get side to side play and essentially wears out and will not give and receive a correct reading on throttle position.

 

The pedal is where you need to look at first.

We had a car that derated because the throttle body (Air intake) and it's electronics were fried. The replacement was pricey. But not as bad as it would have been if the Voltage and count from the throttle pedal was also bad.

 

I agree with the guys my peddle was doing same thing with cat motor. Was told that just changing tps most the time will not solve issue. New bendex pedal assembly is 1000 bucks from dealer. Shopped eBay a while back and found brand new bendex for 300. Sometimes you can find a incredible deal. Anyhow, solved problem instantly
Would be great if you could find someone with same motor and try their pedal in your truck.

 

I had that same thing happen. The engine would idle only, no throttle response. Company finally got a hold of Cummins and had me do a simple shut off engine, turn ignition on and hit brake twice or something along those lines and throttle response returned. I got 14 hours paid waiting time
Call Cummins if you don't figure it out
I forget the exact procedure...

 

Must be different issue. My throttle would do nothing. I drove 7 miles to Wawa On at idle to go for breakfast that morning