What causes a SPN 1867 code?

SPN 1867 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 1867 code?

Drivability depends on the severity. Check the severity rating and verified driver reports on this page before continuing to drive with SPN 1867 active.

How do I fix SPN 1867?

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 1867

SPN 1867 Exhaust Gas Recirculation (EGR) Valve Stall

What it means

The Engine Control Module (ECM) has detected that the EGR valve is mechanically stuck or unable to move to the commanded position despite motor current being applied.