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P0441 P0xxx · パワートレーン (P) 重大度低
Evaporative Emission Control System Incorrect Purge Flow
The ECU commanded the purge valve open but the expected change in fuel trims or tank pressure did not occur — a flow problem rather than a leak.
重大度の目安： 低 — 通常は走行性への影響なし。次の定期点検時に対処してください
確認できる症状
- Rough idle after refuelling
- Hard starting when hot
- Fuel smell near the engine bay
- Slightly high fuel consumption
主な原因
可能性の高い順に並んでいます。上から順に確認してください。
- 1 Stuck-open or stuck-closed purge valve
- 2 Blocked vapour line
- 3 Failed purge solenoid
- 4 Disconnected or cracked hose at the intake
点検・修理の手順
費用が安く侵襲の小さい項目から — これらのコードの大半は部品の問題ではありません。
- ✓ Command the purge valve and watch fuel trims and tank pressure respond.
- ✓ Check the hose from the valve to the intake manifold for cracks.
- ✓ Blow through the valve: it should be sealed when de-energised.
- ✓ Smoke-test the whole vapour path if flow is still unexplained.
修理の選択肢
- Replace the purge solenoid
- Clear or replace the blocked hose
- Repair the intake-side connection
P0441 — よくあるご質問
Why does the engine stumble after filling up? +
A stuck-open purge valve dumps a rich vapour cloud into the intake right when the tank is full.
Is this a leak or a blockage? +
P0441 usually means flow is wrong, not that vapour is escaping — start with the purge valve, not the cap.