Possible causes

– Faulty Purge Flow Sensor
– Purge Flow Sensor harness is open or shorted
– Purge Flow Sensor circuit poor electrical connection

When is the code detected?

The Engine Control Module (ECM) detected a purge flow sensor signal above calibrated limits.

Symptoms

– Engine Light ON (or Service Engine Soon Warning Light)

MAZDA Technical Service Bulletins for P1445 code