What does code P2493 mean?

DTC codes / P24xx · Auxiliary emission controls / P2493

P2493EGR Cooler Bypass Position Sensor Range or Performance Bank 1

P2493 means the engine computer has detected that the EGR cooler bypass position sensor is reporting a position that is outside the expected range or is not performing as designed. The computer compares the sensor signal to the commanded bypass position and sets this code when the two do not agree within a calibrated threshold.

SystemPowertrain

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyIntermediate

AreaAuxiliary emission controls

Guidance is general and written for all OBD-II vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.