Cat c15 MBN

Right same. But I watched a guy smoke like a freight train from a blown turbo and send the oil out too lol. So that’s was my first inclination he didn’t have any air to match his fuel from the turbo being blown but to me it sounds like a sensor isn’t getting a reading.

 

Also run a cutout test injector could be bad.

 

Was the stock turbo the replacement cause I only build 32psi at 550hp tune and I tuned it from MBN to 6NZ.

 

If it’s done it a long time you probably just have bigger injectors in it. Cause 40psi out of a 475 isn’t normal

 

And if you have the stock MBN turbo on that making 40 pounds your gonna end up blowing another one. It’s best to go buy a Borg Warner stage one or something along those lines. Cause at 32 psi my turbo is overspinning and you can hear it praying for jesus to take it away lol.