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 communications
4Original wording in English
VOLKSWAGEN
Reported code forms P0441
Water leaks from the sunroof/overhead light console area, sunshade is to blinding, MIL-on P0441 in the ECM, coolant leak at the coolant pump, Yellow oil warning light on with any of the following faults P0196 P0198…
VOLKSWAGEN
Reported code forms P0441
VOLKSWAGEN: DTC P0441 STORED IN THE ENGINE CONTROL MODULE. PRODUCTION TOLERANCE IN DIAGNOSTIC MODULE TANK LEAKAGE (DMTL) PUMP COULD CAUSE A FALSE FLOW READING. *JS
VOLKSWAGEN
Reported code forms P0441
DTC P0441 Stored in the Engine Control Module
VOLKSWAGEN
Reported code forms P0441
Technical Bulletin (DTC P0441 Stored in the Engine Control Module): Production tolerance in Diagnostic Module Tank Leakage (DMTL) pump could cause a false flow reading. The production solution to this issue is updated…
Check vehicle applicability
5A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
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.