Top ECM Parameters Every Shop Should Adjust on ...

Buying or receiving a new truck straight from the factory? Don’t assume it’s optimized. Manufacturers ship diesel engines with default ECM settings that may not match your driving style, routes,...

How to Test and Diagnose a NOx Sensor Using a D...

NOx sensors play a critical role in your truck’s emissions system. If you’re getting codes like SPN 4094, SPN 3490, or seeing frequent regens and poor fuel economy, it could...

How to Perform a Parked Regen on a Volvo D13 En...

If your Volvo truck is warning you about high soot levels, derate mode, or codes like SPN 3720, it's time for a parked regeneration. This burns off excess soot from...

How to Clear SPN 5246 Fault Code and Reset Your...

If your truck is stuck in derate and flashing the dreaded SPN 5246 FMI 0 or SPN 5246 FMI 15, it’s usually related to your aftertreatment system—most often the result...

How to Reset the DEF Level Sensor on a Paccar M...

If your Paccar MX-13 is showing a DEF level warning even after refilling, chances are the DEF level sensor is stuck or out of sync. This is a common issue—and...

How to Diagnose EGR Problems on a MaxxForce Eng...

MaxxForce engines are known for EGR issues—clogging, valve failures, and constant fault codes. If you're getting SPN 2791, SPN 132, or engine derate warnings, it’s likely related to your EGR...