P0441: Evaporative emission system incorrect purge flow
What the code tells you on its own
- System
- Powertrain
- Functional group
- EVAP and fuel tank
- Subsystem
- Auxiliary emission controls
- Failure type byte, when the tool sends one
- 00 (No sub-type information)
Engine, fuel, air, ignition, emissions and transmission. The overwhelming majority of what workshops bring to the AI.
Scan tools report the same fault as P0441 and as P0441xx, where xx is a sub-type. They are one fault, and whether the sub-type appears at all depends on the tool and the protocol rather than on the car.
Diagnostics
What we see when P0441 turns up
Measured across the diagnostics run through Wrenchlane, not taken from a reference table. Figures as of 2026-10-06.
- Diagnostics
- 7
- Separate workshops
- 7
- Arrived code only
- 43%
- Most common marque
- Skoda
March 2026 to September 2026
Not one shop meeting it repeatedly
No symptom description entered at all
Where we have seen it most
These are counts from our own work, not a claim about how common the fault is across all vehicles. They describe what independent workshops brought to us, which is a narrower and more specific thing.
Real cases
Real cases with P0441
Diagnoses of P0441 on real cars, written up: the car, the codes it came in with, the causes ranked and what to check first.
EVAP and fuel tank
Other evap and fuel tank codes
- P0443 Evaporative emission system purge control valve circuit
- P0456 Evaporative emission system leak detected, very small leak
- P2066 Fuel level sensor B circuit range/performance
- P049B Not individually documented
- P0451 Evaporative emission system pressure sensor range/performance
- P0444 Evaporative emission system purge control valve circuit open
- P049C Not individually documented
- P0440 Not individually documented
FAQ
Frequently asked questions
How do I run a diagnosis?
Select the vehicle on Start, click the Diagnostic card and choose New diagnostic. Fill in the description, the error codes and the mileage, then click Analyze.
Do I have to type the codes from my scan tool?
No. Click the camera button next to Error codes and take or choose a photo of the scan tool's screen; WrenchLane reads the codes and their descriptions into the form. You can also speak them with the microphone.
Are the public fault code pages built from my diagnostics?
They use diagnostics run in WrenchLane, with no workshop, customer, registration number or VIN shown. Each fault code page shows how often the code was seen and in how many workshops.
Run P0441 against the car in front of you
Enter the code and the symptoms and get ranked probable causes for that specific vehicle, with the checks in the order worth doing them. Free account, no card.