Turbo problems

[Rawze]

* Pressurize the engine and look for leaks.

* clean out the EGR, Delta-P, and other piping and verify the EGR valve is not sticking.

* replace the Intake pressure sensor, Delta-P sensor, and exhaust pressure sensor if they are old.


* verify the turbo is calibrated properly.

* Never worked on a ISM. If the turbo controller is air driven like in the CM870's, make sure the pressure supply line is at full air pressure by checking it with a gauge.

Just some places to start.