Cascadia 125 DD16 Accelerator Pedal not working randomly

Hello guys i have a 2014 FREIGHTLINER CASCADIA 125 with a DD16 engine that it was parked 1 month until today, so i went to parking lot to pick up a load and i realized that the truck start but it wont accelerate at all i had to cancel the load because of the issue ... i have this codes on the dash SPN-111 FMI 18 Engine Coolant Level 1 and SPN-2623 FMI 8 Accelerator Pedal #1 Channel 2 and SPN-3510 FMI 4 Sensor supply voltage 2 then i googled it and i ended buying the accelerator pedal with the positioning sensor included at the dealership and replaced it but still not working so after cutting the power with the switch under the driver seat and giving it power again i realized that sometimes randomly after i switch the power ON the yellow check engine light and def service yellow light stays on and the problem starts happening no acceleration at all .. then i shut down the truck and i cut the power off with the switch and give it power again with the switch and the yellow lights stays off so truck works as normal the problem looks to happen randomly ... the coolant LVL its ok the tank is full
Then doing a research on my ELD it shows that the problem started 1 week before i parked the truck last month so i worked with that problem a week now that i have realized about having that problem i don't know if i should go on the road again like that or no .....

any suggestion is appreciated thanks to all of you who take time to read and answer something

 

Hello and thanks for answering i just came from the parking lot and i was looking the sensor i disconnected it and made a bridge on the connector but still failing

 

thanks tomorrow ill take it to a electrician :*(

 

Thanks I will check it before taking it to the electrician

 

The problem ended being a bad CPC and costing me 800 dollars so they had a used CPC they programmed it and they opened the engine because was governed by the computer to run only 65mph hopefully it work nice from now on thanks for replying guys

 

Thanks for giving me hope I was thinking that guy robbed me but looks like I was wrong hopefully everything goes as should ... I toke It to a road test all looks good and now it runs a lot because it only used to go at 65 now I had to stop pushing the throttle at 77