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 Emissions System Incorrect Purge FlowManufacturer communications
6Original wording in English
KIA
Reported code forms P0441
TSB - ECU UPGRADE ? DTC P0441 LOGIC IMPROVEMENT - This bulletin has been revised and is no longer a Service Action. bulletin provides information related to the Engine Control Unit (ECU) software upgrade for some…
KIA
Reported code forms P0441
TSB: SERVICE ACTION: ECU UPGRADE - DTC P0441 LOGIC IMPROVEMENT (SA280) - This bulletin provides information related to the Engine Control Unit (ECU) software upgrade for some 2012-2016MY Rio (UB), 2014-2016 Soul (PS),…
KIA
Reported code forms P0441
COMBINATION TSB / SERVICE ACTION: ECU UPGRADE ? DTC P0441 LOGIC IMPROVEMENT (SA280) - This bulletin provides information related to the Engine Control Unit (ECU) software upgrade for some 2012-2016MY Rio (UB), 2014-2016…
KIA
Reported code forms P0441
TSB: SERVICE ACTION: MIL ON WITH DTC(S) P0326/P0441(SA194) - THIS BULLETIN PROVIDES INFORMATION RELATED TO THE ECM SOFTWARE UPGRADE OF SOME 2014MY RIO (UB), PRODUCED FROM OCTOBER 01, 2013 THROUGH JANUARY 22, 2014, AND…
KIA
Reported code forms P0441
TSB: ECM UPGRADE – RIO, SOUL MIL ON WITH DTC(S) P0456/P0461/P050A/P2188/P2192/P0128/P0326/P0441 - THIS BULLETIN PROVIDES INFORMATION RELATED TO THE ECM SOFTWARE UPGRADE FOR SOME 2012~2014MY RIO (UB), SOME 2012~2013 SOUL…
KIA
Reported code forms P0441
TSB: ECM UPGRADE – RIO, SOUL MIL ON WITH DTC(S) P0456/P0461/P050A/P2188/P2192/P0128/P0326/P0441 - THIS BULLETIN PROVIDES INFORMATION RELATED TO THE ECM SOFTWARE UPGRADE FOR SOME 2012~2013MY RIO (UB) AND SOME 2012~2013…
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.