What causes a SPN 2813 code?

SPN 2813 can be triggered by several issues — see the verified probable causes and step-by-step diagnostics shared by mechanics and owners on OBDIY.

Can I drive with a SPN 2813 code?

Drivability depends on the severity. Check the severity rating and verified driver reports on this page before continuing to drive with SPN 2813 active.

How do I fix SPN 2813?

Follow the step-by-step diagnostic on this page, then read the verified fixes contributed by other Heavy Truck owners — the answer marked "Verified Cause" worked for the original poster.

OBDIY

J1939 SPN

SPN 2813

SPN 2813 Engine Air Flow Control Valve Stuck

What it means

This fault identifies a mechanical or electrical failure where the Air Flow Control Valve (Intake Throttle) is unable to reach the commanded position or is stuck open/closed.