1K views · 3 comments | We break down fault code 3255 (SPN 3246 FMI 0 or FMI 16), which indicates that the DPF outlet temperature sensor has exceeded safe limits. Learn how this critical fault impacts your truck’s aftertreatment system and what actions the ECM takes to protect the engine. Learn more https://shorturl.at/zaM3z | OTR Performance | Facebook

🚨 Don’t Ignore Cummins Code 343. When working on a Cummins Celect Plus ECM (N14 engine), Code 343 may appear. 📟Although the description says "no effect on performance," this can be misleading. 🚫The fault indicates a communication error with the fault-processing chip, which can cause engine stumble, shutdown, or no start. 🔧👉 Follow us for more ECM tips and drop your questions in the comments! #ECMRepair #DieselTrucks #TruckMaintenance | Oscar Truck ECM

Top Cummins fault code we see, and how to make sure you don’t just replace the turbo actuator when there’s a bigger issue | Dave's Engines