What causes a SPN 416 code?

SPN 416 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 416 code?

Drivability depends on the severity. Check the severity rating and verified driver reports on this page before continuing to drive with SPN 416 active.

How do I fix SPN 416?

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 416

J1939 SPN 416 — Fuel/Air parameter

What it means

SPN 416 indicates that the engine control module has detected fuel pressure or fuel/air delivery parameters that are outside of the calibrated normal operating range.