TECHNICAL ADVICE
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SPN 4364 FMI 18: SCR Efficiency Low — Causes, T...
Andre PerrasSPN 4364 FMI 18 indicates low SCR NOx conversion efficiency, but it doesn’t automatically mean the SCR catalyst has failed. Learn how DEF quality, NOx sensors, dosing problems, exhaust leaks,...
SPN 4364 FMI 18: SCR Efficiency Low — Causes, T...
Andre PerrasSPN 4364 FMI 18 indicates low SCR NOx conversion efficiency, but it doesn’t automatically mean the SCR catalyst has failed. Learn how DEF quality, NOx sensors, dosing problems, exhaust leaks,...
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Inlet vs Outlet NOx Sensor: How to Tell Which O...
Andre PerrasLearn the difference between inlet and outlet NOx sensors, what Sensor 1 and Sensor 2 mean, how to compare NOx readings, and how to diagnose which sensor is bad.
Inlet vs Outlet NOx Sensor: How to Tell Which O...
Andre PerrasLearn the difference between inlet and outlet NOx sensors, what Sensor 1 and Sensor 2 mean, how to compare NOx readings, and how to diagnose which sensor is bad.
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SPN 3216 FMI 10: What It Means, What Causes It,...
Andre PerrasIf your truck or equipment is showing SPN 3216 FMI 10, the fault is related to the Aftertreatment 1 Intake NOx Sensor, commonly referred to as the upstream NOx sensor or...
SPN 3216 FMI 10: What It Means, What Causes It,...
Andre PerrasIf your truck or equipment is showing SPN 3216 FMI 10, the fault is related to the Aftertreatment 1 Intake NOx Sensor, commonly referred to as the upstream NOx sensor or...
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DPF Regeneration Does NOT Require DEF: Understa...
Andre PerrasLearn the difference between DPF and DEF/SCR processes so that you can diagnose quickly and efficiently. They're often conflated - and misunderstood. Â
DPF Regeneration Does NOT Require DEF: Understa...
Andre PerrasLearn the difference between DPF and DEF/SCR processes so that you can diagnose quickly and efficiently. They're often conflated - and misunderstood. Â
