What does this code mean?
The EVAP monitor detects purge behavior that does not match its expected response. This is not automatically a leak-size code or proof of a loose fuel cap. Monitor strategy varies by vehicle; an extended code and manufacturer procedure may describe the failure more precisely.
Sources and interpretation [1]
A code identifies a detected condition, not a part that must automatically be replaced.
Before replacing a part
Record the full code and recent software work. Use the specified EVAP test equipment and pressure limits. In the Atlas example, the diagnostic sequence separates canister debris, purge-valve vacuum testing and leak-detection wiring; do not skip directly to a fuel-cap replacement.
Manufacturer wording
Source wording can vary by vehicle and suffix. It is shown as written, not as a universal diagnosis.
P0441Evaporative emission control system incorrect purge flowManufacturer communications
2Original wording in English
MAZDA
Reported code forms P0441
Some vehicles may have a MIL illumination with DTC's P0441, P0442, P0455, or P0456 stored in memory. To determine the location of the evaporative system leak, follow the repair procedure below. P0441 - Evaporative…
MAZDA
Reported code forms P0441
MAZDA: DETERMINING EVAPORATIVE SYSTEM LEAK LOCATION FOR DTCS P0441, P0442, P0455, P0455. SOME VEHICLES MAY HAVE A MIL ILLUMINATION WITH DTCS STORED IN MEMORY. *PE UPDATED 4/18/11. *PE
Check vehicle applicability
2A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| Mazda | MAZDASPEED6 | 2007 |
| Mazda | MAZDASPEED6 | 2006 |
Sources and interpretation
These explanations are editorial summaries of the linked manufacturer material. PDF page numbers count from the first file page. Original publications are in English; translations are reference aids. A cited edition is not a claim that it is the manufacturer's latest instruction.
- Audi TT Quick Reference Specification Book · October 2013 ↗
Audi of America · PDF page(s) 140 ·
- 01-19-09TT / 2057754/2 · EVAP faults after software update ↗
Volkswagen Group of America · PDF page(s) 1, 2 ·
Source check date · 2026-10-27
Can I keep driving?
A code alone cannot establish whether driving is safe. A flashing malfunction light, severe shaking, overheating, oil-pressure warning or loss of braking or steering needs prompt attention. Stop in a safe place and seek assistance when control or engine safety is affected. Follow the vehicle handbook.