CM2100 Manual Truck Won't hold MM3 past 2900 RPM

[TwistedShafts]

Hey everyone I am working on an 08 manual truck. I just built the engine to support 4400 rpm but can not get the tune to hold 150mm3 past 2900 rpm. At that point, it starts pulling fuel. I haven't had this issue with the 06-07 5.9 or earlier 5.9s. I have read in the past that you need a Cax file. I asked EFI Live if they could fix this issue in the past but they said there is not high enough demand. Does anyone have a solution to my problem? Also tried to get a read off of the truck with HP tuner, so I could build a single tuneable to hit 4400K. The ECM is locked. It currently has my EFI Live tunes on it. Any way around this, or how I can get a stock HP tune for this truck? Thank you

[Jim P]

Email support with the vin number and OS needed, I?m sure they could give you a stock file to use for the truck.

[TwistedShafts]

Thank you Jim. I always forget that with HP tuner you can't just change the VIN in the editing software. Use to using EFI Live for so long.

[Jim P]

I hate the restrictions in HP Tuners

[TwistedShafts]

That makes two of us. Jim, I just dynoed a 2005 auto truck with HP tuner already on it. It has a four-position switch plugged into the baro sensor to change between baro maps. I have been looking online trying to find who makes it. Would you happen to have any idea? Seems like a simple way to have a switch on the fly tuning.

[Jim P]

Yea that would be Craptimal Welding. It?s simple enough to do if you know what to do.

[TwistedShafts]

I figured to have a rotary switch. Just need to figure out the different resistance values to change the baro. Don't know why I never thought of that before. On a different subject. Do you know what EFI live left out on the CM2100 for fueling limiter? Have you ever used HP tuner to hit 5k on an early 6.7?

[Jim P]

Don?t need to know the resistance of the switch positions.

Yea I?ve helped someone with it before, the speed limiter that is on EFILive.