What causes a SPN 658 code?

SPN 658 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 658 code?

Drivability depends on the severity. Check the severity rating and verified driver reports on this page before continuing to drive with SPN 658 active.

How do I fix SPN 658?

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 658

SPN 658 — Engine Injector Cylinder #8

What it means

Cylinder #8 Fuel Injector Circuit malfunction. The ECM has detected an electrical fault (open, short, or out of range) on the control circuit for the eighth injector.