ISX "whistling" and shut down

[CoroView Shop]

Hi there, thanks for the replies.
Once I realized that the injectors also return pressure to the tank, it made sense that it may not cause a hard start/smoke condition. Thanks for that info!

Also, the highest pressure we could achieve is about 17000psi at about 2000 rpm, which is also all it commanded. We don't have Insite unfortunately, and are limited to having access to live data. Commanded pressure never got higher than 17000psi either. Could that point to an issue? ECM calibration or?

I'll watch the video when I have a moment (thanks!), but at this point the boss would like to remove injectors and have them tested rather than spend the $ to get test equipment for one engine. The rest of our fleet is either Cat or Detroit (sorry for swearing!)...

Thanks again, you all have been very helpful!