LLY: 05 duramax wont accel over 2000 rpm?

[Burn Down]

Why do you think it's the CP3?

 

[burgess.jase7291]

Why do you think it's the CP3?

I took it to a shop yesterday and they hooked a scanner up to it and done a few things... checking rail pressure I assume ...test drove it and said the cp3 needed replaced. Hoping their right...

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[Burn Down]

I took it to a shop yesterday and they hooked a scanner up to it and done a few things... checking rail pressure I assume ...test drove it and said the cp3 needed replaced. Hoping their right...

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Pretty sure the CP3 can't be diagnosed like that... To many other variables like 8 injectors that can cause issues as well.

 

[burgess.jase7291]

It was the frpv...had stock valve and upgraded to racing valve from ppe and truck with 333000 miles runs as good as new...installing mild economy tune tomorrow from diablosport...anybody used their tunes?

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[burgess.jase7291]

All fst

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