P0441 P0xxx · Powertrain (P) Low severity
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.
Severity guidance: Low — usually no drivability impact, fix at the next service
Symptoms you will notice
- Rough idle after refuelling
- Hard starting when hot
- Fuel smell near the engine bay
- Slightly high fuel consumption
Common causes
Ordered from most to least likely — start at the top.
- 1 Stuck-open or stuck-closed purge valve
- 2 Blocked vapour line
- 3 Failed purge solenoid
- 4 Disconnected or cracked hose at the intake
How to diagnose it
Cheapest and least invasive first — most of these codes are not a parts problem.
- ✓ 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.
Repair options
- Replace the purge solenoid
- Clear or replace the blocked hose
- Repair the intake-side connection
P0441 — frequently asked questions
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.
Confirm the diagnosis before you buy parts
Send us the code, freeze-frame data and the vehicle — our engineers will tell you what to test first.