P1450EVAP system: fuel tank vacuum does not bleed off
- Ford code · Engine
- Turns on the check-engine light
- How the car detects it
- During its evaporative-emission test the engine computer pulls a slight vacuum in the fuel tank and then expects it to disappear when the canister vent opens. With P1450 the vacuum stays, which points to a blocked vent path. On early 2015-2016 Focus 1.0 EcoBoost cars (built up to 19 October 2015) Ford bulletin 16-0055 fixes it with an engine computer update.
- What you may notice
- Check-engine light
- Likely causes
- PossibleCanister vent valve stuck closed, or its filter blocked
- PossibleKinked or blocked vent hose, dirt in the canister
- RareFuel tank pressure sensor
- RareEngine computer software (early 1.0 EcoBoost Focus)
- Sources
Backed by at least two independent sources.
From Obdaryn's Ford pack, exactly as the app shows it, with the public sources above. Guidance only; confirm with a workshop.