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DTC codes / P23xx · Ignition system and misfire / P2375
P2375 indicates that the powertrain control module (PCM) has detected an out-of-range or performance fault in the signal circuit for the turbocharger inlet pressure sensor B. This sensor measures the pressure of the air entering the turbocharger compressor, and the PCM uses that data to calculate expected boost and adjust fueling and wastegate control. The code is set when the sensor's voltage or pressure reading falls outside the expected range for the current operating conditions or fails a rationality check against other pressure sensors.
Guidance is general and written for all OBD-II vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.
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