CM849 for a Cummins swap.

[Diesel Daddy]

I am very new to this so excuse my ignorance. I am doing a Cummins Swap. My engine has a cm849 out of an 2006 that came out of an automatic truck. I believe I need a stock file for a manual truck? Does anyone have a stock file?

[DodgeBoy_8HP]

Did you try finding it in the repository?
I personally dont have it...

DodgeBoy.
Email: [email protected]
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[Diesel Daddy]

I'm very new to this. I didn't know there was a repository. I found an 05 model that should have the same cm849 ecm. I confused by it though. I looked at the file and when you click the transmission icon on editor there are fields on it referring to line pressure. So is it a manual trans file or an auto file? Also Ive read on the forum that hpt won't allow you to reflash an ecm to make it a manual ecm vs the auto ecm. There are threads saying you have to use anther tuner to flash stock file and then you can edit that file with hpt.

[DodgeBoy_8HP]

Yes, it is correct as far as I know:
1. Have it re-flahsed (I would suggest Sound German)
2. Have it re-tuned with HP Tuners

Let me know if you need any support.
Thanks.

[Jim P 2.0]

I'm very new to this. I didn't know there was a repository. I found an 05 model that should have the same cm849 ecm. I confused by it though. I looked at the file and when you click the transmission icon on editor there are fields on it referring to line pressure. So is it a manual trans file or an auto file? Also Ive read on the forum that hpt won't allow you to reflash an ecm to make it a manual ecm vs the auto ecm. There are threads saying you have to use anther tuner to flash stock file and then you can edit that file with hpt.

05 calibrations cannot be used on an 06 ecm, they are different. with the 5.9 calibrations they all have transmission parameters in them regardless if its a manual transmission or automatic, generic calibrations with some changes in parameters between the them.

[Fummins_Tuning]

No need to swap the OS over, i've tuned tons with no issues

[Rainman1]

Can a cm848 be read by hpt with an OS swap? What stops the 848 from being read to began with? I'm having little tiny issues and they are bugging me. Lol

[Rainman1]

What would cause throttle hang over 2500rpms at wot. Ive changed everything I could think of. Any ideas

[Jim P 2.0]

What would cause throttle hang over 2500rpms at wot. Ive changed everything I could think of. Any ideas

Many things can cause it, driven by the changes you’ve made in your tune file, consider increased delays in fuel cutoff at the high rpms when dumping load off the engine suddenly from things like increased rail pressure at high rpm low load, turbo still in high speed momentum, other air/fuel related changes, it all affects the reaction of the governors in the calibration, droop can likely be off/less ideal for the changes you’ve made