The diagnosis is performed on a Mazda 2.2 Skyactiv diesel; it applies to all model ranges equipped with such sensors.
This video is related to all vehicles equipped with similar sensors, and It shows essential diagnosis.
Possible fault codes for the Differential Pressure Sensor are P2454 and P2455.
Possible DTCs for Exhaust Pressure Sensor No. 1 are P0472 and P0473.
You will discover how to diagnose both sensors, possible symptoms, reference data, and replacement.
