What causes a P140E code?

P140E 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 P140E code?

Drivability depends on the severity. Check the severity rating and verified driver reports on this page before continuing to drive with P140E active.

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

OBD-II

P140E

CCVCD rotor speed too low fault

What it means

The Engine Control Module (ECM) detects that the Crankcase Ventilation Centrifugal Droplet separator (CCVCD) rotor is spinning below the commanded speed. This system is responsible for removing oil mist from crankcase gases.