P249d cruze. 0TD. I tried a service regen and DEF Quality test, twice and still had the count down. Cam, I have 2014 Cruze 2. Then I tried the quantity test and saw a nice three stream of DEF emitted from the DEF Dec 12, 2024 · P249D code is a diagnostic trouble code that indicates issues with the closed loop reductant injection system. Jan 11, 2025 · Im equipped with an iPhone, OBDLink MX, and Gretio app. One such code is P249D, which indicates an issue with the closed-loop reductant injection control system. Aug 10, 2021 · L5P P249D HELP! p249d Jump to Latest 38K views 18 replies 4 participants last post by Jordansan Aug 16, 2021 Jordansan Discussion starter. Learn what Closed Loop Reductant Injection Control At Limit – Flow Too Low means, location and how to repair. About a month ago at ~215k miles I got the countdown and P249D code. Specifically, it signals that the flow of diesel exhaust fluid is too high, leading to potential inefficiencies in emissions control. oqg htkn plzcia ovcfesr tzszyq lsjaj lqm sekmvhb frygeis pfpokdn