Purge Flow Sensor Circuit High Condition
Findings, check these first
- Failed purge flow sensor stuck high
- Shorted sensor signal wire to voltage
- Poor sensor ground
- Purge valve stuck open driving real high flow
- PCM reference fault
Standard procedure
- Check whether purge flow is actually high or the sensor is lying
- Test the purge valve seal with vacuum
- Inspect sensor wiring for shorts to power
- Verify the sensor ground
- Replace the flow sensor after confirming the purge valve seals
Code lookup
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Sources and review
Review: checked against the recorded source material.
- OBDII.pro: P1445 Ford definition
live reference page (obdii.pro)
Supports: Ford-family meaning for P1445: Purge Flow Sensor Circuit High Input
Fetched directly. obdii.pro is a publisher independent of the engine-codes family.
- P1445 FORD Code: Meaning, Causes, and Symptoms | OBD2 Codes
live reference page (obd2-codes.co)
Supports: Ford meaning for P1445: Purge Flow Sensor Circuit High Condition
Fetched directly. obd2-codes.co phrasing matches the engine-codes family, so it counts as one publisher.
Last updated 2026-09-04.
Report a correction for P1445. Include your vehicle, the issue and a source if you have one.