Purge Flow Sensor: Description and Operation

PURGE FLOW SENSOR
Monitors vapor flow through EVAP solenoid and sends signal to PCM. PCM sends output signal to solenoid based on flow conditions.

NOTE:
- If the purge flow sensor circuit has an open or short, Diagnostic Trouble Code No. P1444 or P1445 is output.
- If the purge flow sensor circuit is open or shorted, no driveability symptom will be noticed.
- If purge flow is malfunctioning, DTC No. P1443 is output.