SPN-3490 Aftertreatment purge air actuator

[JimT]

So, unless I'm mistaken, a 2015 engine will be an ISX 15, cm2350. This is different then the newer "X15" engines.

Also, if you want to truly troubleshoot/work on your own engine you'll need Insite running on a laptop and a free account on Cummins Quickserve to look up engine specific information, parts and up to date troubleshooting info. All you really need to sign up is your engine's ESN.

As for insite, search this forum, it's been discussed hundreds of times. Rawze also has a youtube video on setting it up.