Trouble code
P0441
Evaporative Emission Control System Incorrect Purge Flow
What P0441 means
The purge valve is not moving the volume of fuel vapor the computer expects.
Symptoms you may notice
- Check engine light
- Occasionally a rough idle
- Failed emissions test
Common causes, cheapest first
- Stuck purge valve
- Blocked or cracked purge line
- Failed vent valve
- Saturated charcoal canister
Before you buy anythingA purge valve stuck open pulls fuel vapor into the intake at idle and makes the engine run rough. If your idle is poor alongside this code, that is the likely reason.
What to do next
- Confirm the code with your own scan tool, or have it read free at a chain parts store.
- Decode your VIN so you know your exact engine and build date.
- Work down the causes above from cheapest to most expensive.
- Search NHTSA for a recall or service bulletin covering this symptom on your vehicle.
- Read the engine buying guide before ordering.
P0441 is a generic OBD-II code, standardized across every make and model sold in the US from 1996 onward. The meaning is the same on any vehicle; the specific part and its location are not.
Parts
Parts commonly needed for P0441
These go to Amazon. We earn a commission if you buy, at no extra cost to you — see our affiliate disclosure. Which one you actually need depends on diagnosis — read the note above first.
Confirm fitment against your VIN on the listing page before ordering. A part that matches your year and model can still be wrong for your build date or engine code.