ISB 6.7 CM2150 problem

[Rawze]

(07-27-2025 )Stovedude Wrote:  So I bit the bullet and installed a new turbo, and as I suspected, that didn't change anything. Still won't rev past 1000rpm (still stumbling and lots of grey smoke). Idles just fine, but no boost.
Anybody have any ideas? Injectors maybe? The Injector cutout test seemed to pass fine.

did you do what I said to do in this post?...
https://rawze.com/forums/showthread.php?...6#pid80656

Did you put a gap between the manifold and turbo and run it to see if it goes past 1,000 rpm, and runs freely?.

Did you also open up a gap at the intake manifold so that intake can breathe and do same test?.