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Improve your aftertreatment diagnostics today

Sponsored by Noregon Systems

DPF Regens

Performing regens, whether passive or forced, is necessary as they help to remove the soot buildup, prevent filter blockage, and increase the longevity of the DPF. By removing the accumulated soot, regens can help create a well-maintained DPF that lasts longer and avoids the hefty costs of replacing it.

Passive Regens

A passive regen occurs while the vehicle is in use, and the exhaust temperatures are raised to burn off the accumulated soot. One of the benefits of a passive regen is that it happens automatically, creating convenience without the work of a technician needed.

Forced Regens

A forced regen occurs on stationary trucks and is typically done when a passive regen is inhibited. In scenarios where the engine does not maintain the temperatures needed to burn off the soot, short-haul trucks will often require manual regenerations from the driver or the assistance of diagnostic tools such as JPRO to initiate the process.

For example, a trash truck that makes frequent stops on shorter routes is less likely to undergo a passive regen than a long-haul truck. In this case, a forced regen is required more often.

Note: There are scenarios in which the aftertreatment system is triggering an active fault but a forced regen isn’t needed. Learn the costs and consequences of running unnecessary regens in our guide: When to Avoid Forced Regens

Initiating a Forced Regen

When a forced regen is required, a diagnostic tool with bi-directional controls is needed to initiate the regen. Using an advanced tool like JPRO ensures technicians get a bumper-to-bumper diagnosis of the vehicle first, which can inform of other issues that should be addressed before (or instead of) the regen.

To initiate a forced regen in JPRO, simply press the “Start DPF Regen” button in the Aftertreatment Diagnostics window. The average regen lasts between thirty to sixty minutes, but JPRO will alert you when it is complete.

Noregon-JPRO-truck-Diagnostics

Tying It All Together

DPF regens, whether forced or passive, are necessary to remove soot buildup and prevent filter blockage. JPRO helps technicians understand what’s happening in vehicles’ aftertreatment systems and initiate a forced regen when needed.

Check out the JPRO coverage chart or browse the user guide to learn more about our tool.

This article is sponsored by Noregon Systems.

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