OBD-II code · Powertrain (generic)
P0469 EVAP Purge Flow Sensor Circuit Intermittent
EVAP purge flow sensor signal jumps or drops out intermittently. The evaporative system captures fuel vapor from the tank and purges it into intake; leaks or stuck purge valves leak hydrocarbons and cause emissions failures.
Is it safe to drive with P0469?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyIntermittent connector
- Less likelyConnector with intermittent contact under vibration
- Less likelyHarness routed against vibrating component
Symptoms
- Check engine light on
- Possible smell of fuel near tank or engine bay
- Failed emissions inspection
- Loose-cap warning may appear
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.5–2.5 h
- Emissions test
- Likely to fail
- Parts involved
- Evap Purge Flow Sensor
Related codes
- P0465EVAP Purge Flow Sensor Circuit
- P0466EVAP Purge Flow Sensor Circuit Range/Performance
- P0467EVAP Purge Flow Sensor Circuit Low
- P0468EVAP Purge Flow Sensor Circuit High
- P046ACatalyst Temperature Sensor 1/2 Correlation (Bank 1)
- P046BCatalyst Temperature Sensor 1/2 Correlation (Bank 2)
- P046CEGR Sensor A Circuit Range/Performance
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.