2009 ISX 15

[Rawze]

If you don't have a cheapo-o datalink adapter and Insite then that should be your next investment.

-- It is an ISX ... They love to be worked on. Also, all the info for them, parts lookup, repair procedures, etc. to anything you need is available for free for them. that IS their only and biggest advantage for owning one.

-- Everyone who owns a red engine should go get themselves a cheap win10 laptop and a $300 "inline-6 data-link adapter kit" off amazon or somewhere else so that they can become self reliant on troubleshooting it, to keep it away from over-priced $$$ repair shops every time a check engine light flashes, or it acts up.

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Also, its not de-mandated,.. so when is the last time you did a full EGR tune-up on it?. - It needs to be done about once a year to keep the engine running healthy and for it not to be in a constant state of silent derates...
ref: https://rawze.com/forums/showthread.php?...pid=9#pid9