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Dakota Simpson
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Dakota Simpson New Member

Dakota Simpson

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Hey yall. I live in upstate NY. I went to get my 17 z71 sulverado inspected in June and it failed. Has evap and catalyst monitors as incomplete.  No engine light, no codes just incomplete.  Was inspected a year ago and have had no issues with it. Put 18k flawless miles on it in a year. Anyone had this issue or k ow how to resolve it?! Thanks in advance. Any help would be greatly appreciated.  

mikeyk101 Senior Enthusiast

mikeyk101

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Are you by any chance using a Range AFM Disabler? If so, that's why. It's an easy fix and only requires a couple start cycles and driving a bit.

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