I'd agree with this... I graphed your CT, IT & RP & nothing stands out. RPMs would have helped in the data to see the lope & its frequency.

If the cam & crank sensors have not been changed, swap them. They are cheap & they do not last forever. Do not get anything but Cummins parts on these sensors (same sensor, 2 locations). Last time I swapped mine it was an eye opener, my tuning was dialed in for how the motor ran (self tuned) and on the 1st stab of NTK sensors, thru a code right away and the motor did not run 100% like it did with the old sensors. Got Cummins parts and did a comparison of the magnets at the sensor end & the NTKs had a weak magnet compared to the Cummins sensor. Not sure who makes that sensor but back then it was under $30 at the Cummins parts shop.

In the issue I had with the lope... mine was a steady one iirc and stopped at the 5 minute mark in the data log after the motor was running. IIRC I documented this over on CF.
edit: Found the thread and it is the opposite of yours... was rock solid until the 5 min mark & then had a rough idle. If you want to read it search for "Rough idle after 5 minutes" & steve05ram360 & you should find it, again it was the opposite of your symptoms. Rough idle after 5 minutes.

 

I'll get them ordered tonight so just 2 of the same sensors?

https://www.thoroughbreddiesel.com/cummins-crank-cam-position-sensor-03-18-dodge/?utm_source=google&utm_medium=cpc&utm_campaign=%28 ROI%29%20Shopping%3A%20PMax%20-%20Everything%20Else%20%7C%20Low%20AOV&utm_id=1775 4572369&utm_content=&utm_term=&gad_source=1&gad_ca mpaignid=17347656857&gbraid=0AAAAAD-Q2AvkGs59ppE0tAEQ5PU8RORad&gclid=CjwKCAiAs4HMBhBJE iwACrfNZWForFLZ89aYUDgIbTBYSFV4pl7D9AoXgEweAswmttF oXT6mph4M-RoCie0QAvD_BwE#tab-shopperapprovedreviews

 

I don't remember anymore i even did a motor swap a couple years ago on an 06, they may only run one sensor now, on the back of the gear case, crank you will be in the block obviously, but i just don't remember, they are significantly cheaper than i though, I was remembering over 200 for some reason, seems to be Cummins genuine, and price is decent

 

From what I read I think it's the same sensor for both

 

they are the same sensor for both positions...

the install of the cam sensor is a PITA, be patient...

 

So I buy 2 sensors? Just confirming

 

yes, you can go to Rockauto.com and confirm... same p/n on all parts for both positions.

 

Got the part ordered so I'll update as soon as I install it probably by the end of next week thank you. If it fixes it I'll still post an update fingers crossed!

 

Hey got busy this weekend so wasn't able to get it on yet from what I've researched it's behind the computer, but something to note today when I cranked the truck I let it idle for about 10 minutes and went and checked the smarty low voltage at lift pump code well I cut the truck off and cleared code and it idled perfectly so what is y'all's opinion on that?

 

do you have a lift pump pressure gauge?