TorqueMech OBD Code Guide
P0466 - Purge Flow Sensor Sensor Range/Performance
The ECM detected a purge-flow sensor sensor range/performance fault.
Code Overview
The ECM detected a purge-flow sensor sensor range/performance fault.
Common Causes
- Failed purge flow sensor
- Damaged wiring or connector
- Restriction or leak in the EVAP system
Diagnostic Steps
- Inspect the sensor connector and nearby EVAP lines
- Check live data for a stable purge-flow reading
- Use smoke or flow testing if the EVAP system is suspect
Likely Repairs & Cost Guides
Use test results to confirm the fault before pricing the repair.
Open EstimatorRelated OBD Codes
Browse the closest code-family pages when the same fault pattern often shows up nearby.
Next Steps
Move from the code to a diagnosis path, then into repair pricing once the fault is confirmed.