2012 lml loses all power around 2000rpms

[jasen]

I recently rebuilt my engine I replaced the pistons with rings, stage 1 camshaft, cp3, cheetah turbo, 10% over injectors, arp head studs in top and bottom end, Callie crankshaft, all bearings all and seals, Fluidampr Duramax Damper, Wagler oil pump pinned. The first test dive was great but the next day when I tried to get to speed I lost all power and have no petal response tell I let off and wait a second it only happens around 2000 rpms this is my first time building a motor I took my time and this build lasted 6 months buying parts and slowly assembling the engine so if anyone has any ideas It would be greatly appreciated thanks

 

[2004LB7]

Welcome

2k rpms is almost always a limp mode limit. There should be codes associated with it. Unless it's tuned. Then there's no telling what was done. But at least try and read the codes with a good scanner

 

[jasen]

Welcome

2k rpms is almost always a limp mode limit. There should be codes associated with it. Unless it's tuned. Then there's no telling what was done. But at least try and read the codes with a good scanner

I get no codes I tried my bosses scanner it's a icon t10 but still nothing. Another thing is if I hold the throttle the truck with start shaking and will die

 

[gmduramax]

Log fuel pressure while it’s doing it

 

[Mikey52]

Deleted or not?

 

[Chevy1925]

Oh im sure its deleted and sounds like alot of codes got shut off that shouldn’t be. Those are always fun

 

[jasen]

Yes it's deleted it have efi live maybe its the tuning does anyone know a good tuner and how do you post videos here

 

[Chevy1925]

You will need to upload to a hosting site like youtube. Videos take up a shitload of server space to store on.

 

[jasen]

You will need to upload to a hosting site like youtube. Videos take up a shitload of server space to store on.

Ok thanks

 

[jasen]

Thanks for all the ideas I found the Problem it was the Torque converter

 

[2004LB7]

Thanks for all the ideas I found the Problem it was the Torque converter

Can you explain your findings? How did you figure it out? Might help others down the road

 

[jasen]

I took it to a shop and they used there computer to read the The Slippage on the torque converter than I installed a triple disk one and the truck runs and drives fine now

 

[NC-smokinlmm]

You must have blown it apart internally for it to bog a diesel down at idle. Pretty work.?

 

[jasen]

You must have blown it apart internally for it to bog a diesel down at idle. Pretty work.?

Ya I'm not sure what exactly happened