cylinder contribution test, HOW?

[Shipmate]

How do you do a cylinder contribution test. I have a 08 6.4 and it's programed via a *******. Can I check it via the *******? I do not see it via the PIDS that I can select. Do I need to update the PIDS? if So how?
Thanks

Luke

 

[sootie]

you need IDS to do a contribution test.