What causes a SPN 3358 code?

SPN 3358 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 3358 code?

Drivability depends on the severity. Check the severity rating and verified driver reports on this page before continuing to drive with SPN 3358 active.

How do I fix SPN 3358?

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 3358

EGR Inlet Pressure Sensor Data Erratic

What it means

The Engine Control Module (ECM) detects an intermittent or incorrect signal from the EGR Inlet Pressure sensor, indicating pressure readings outside of expected parameters for current operating conditions.