P00FE

Code

Generic P — Powertrain

EVAP System Tank Vapor Line Restricted/Blocked

Brand: Generic

Type: P — Powertrain

Views: UK: 22 EN: 173 RU: 40

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Page language: EN

Retrieve freeze frame and live data for EVAP-related parameters (fuel tank pressure, purge duty, vent state)
Visual inspection of EVAP hoses, connectors, canister, and tank fittings for kinks, damage or disconnections
Operate purge and vent solenoids with a scan tool to confirm movement and commanded response
Smoke test the EVAP system to find leaks and blockages
Check canister for liquid fuel contamination and inspect inlet screens/filters

Fuel Tank Pressure Sensor (FTPS) voltage or pressure reading — should change predictably during EVAP tests (voltage typically ~0.1–4.9 V across range)
Purge valve commanded duty cycle (%) vs. actual flow — duty increases should produce measurable flow or pressure change
Vent valve/open state (open/closed) as reported by controller
EVAP system test pressure or vacuum (kPa or inH2O) during onboard or shop test
Smoke injection flow/exit points during smoke test (no smoke should exit tank side if line is sealed; smoke exit at vent indicates open path)

Connect scan tool, read code P00FE and related EVAP codes; note freeze frame and monitor live FTPS and purge/vent commands.
Perform a visual inspection of all EVAP hoses from tank to canister: look for kinks, crushes, disconnected fittings, or melted/abraded sections.
Command the purge valve and vent solenoid while monitoring FTPS and observing for pressure or flow change; listen for valve operation.
Perform a smoke test into the EVAP system supply (canister side) and observe where smoke exits; smoke failing to reach tank indicates a blocked vapor line.
If smoke test indicates blockage between canister and tank, isolate sections by disconnecting at accessible fittings and repeat smoke/pressure check to locate the restricted segment.
Inspect and remove the charcoal canister if necessary to check for internal clogging or liquid fuel saturation. Replace if contaminated or damaged.
Inspect tank outlet, rollover/check valve and inlet screens for debris; clean or replace parts as required.
Replace collapsed or damaged hoses, clamps and any failed valves; reassemble and clear codes.
Run EVAP self-test or perform a verified drive cycle to confirm the repair. Re-scan to ensure P00FE does not return.