What causes a P2087 code?

P2087 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 P2087 code?

Drivability depends on the severity. Check the severity rating and verified driver reports on this page before continuing to drive with P2087 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

P2087

Exhaust Gas Temperature Sensor Circuit Intermittent Bank 1 Sensor 2

What it means

The P2087 fault code indicates that the engine control module (ECM) has detected an intermittent or erratic voltage signal from the exhaust gas temperature (EGT) sensor 2 on bank 1.