What does code P2388 mean?

Q: What does code P2388 mean?

EGR Sensor E Circuit Range or Performance. P2388 indicates that the powertrain control module has detected an out-of-range or performance fault in the electrical circuit for EGR Sensor E, which is typically the sensor that monitors the position of the exhaust gas recirculation valve. The computer compares the sensor's signal against expected values and flags the code when the voltage or rationality check falls outside the calibrated window.

DTC codes / P23xx · Ignition system and misfire / P2388

P2388EGR Sensor E Circuit Range or Performance

P2388 indicates that the powertrain control module has detected an out-of-range or performance fault in the electrical circuit for EGR Sensor E, which is typically the sensor that monitors the position of the exhaust gas recirculation valve. The computer compares the sensor's signal against expected values and flags the code when the voltage or rationality check falls outside the calibrated window.

SystemPowertrain

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyIntermediate

AreaIgnition system and misfire

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