ISX egr tuneup vs X15 egr tuneup

[Edjahman]

The previous owner took it in to have the overhead done and apparently the cam was bad so it's got a new cam.

Also one of the sensors, the tip broke off, so I believe all of the sensors have been replaced but I'll ask Peterbilt next week because it's going in for a DPF cleaning.

I'll post a pic of the IMAP sensor. I've cleaned it before on my old tractor.

What about the piping that gets clogged with soot etc and other things. Should I just watch the EGR tuneup videos on YouTube and go by that?

When should I have the overhead adjusted again?

Thank you