What does this code mean?
The EVAP system detects excessive purge behavior; the exact test may infer flow from tank pressure or vacuum response rather than measure vapor flow directly. It is distinct from a small-leak code. A purge valve is a possible investigation point, but the cited manufacturer sequence does not treat the code alone as a confirmed valve failure.
Sources and interpretation [1]
A code identifies a detected condition, not a part that must automatically be replaced.
Volkswagen 01-19-09TT concerns 2018–2019 Atlas 3.6L CDVC after the 24FK-related software update. It separates leak/debris checks from N80 valve testing and leak-detection diagnosis. It is a technical tip, not a recall or proof of warranty eligibility.
Sources and interpretation [2]
Before replacing a part
Retain the suffix and inspect the applicable EVAP test sequence. Separate debris contamination, valve sealing and leak-detection faults using the prescribed tests. Do not apply another manufacturer's vacuum threshold or infer that every case needs a purge valve.
Manufacturer wording
Source wording can vary by vehicle and suffix. It is shown as written, not as a universal diagnosis.
P0496EVAP SYSTEM HIGH PURGE FLOWManufacturer communications
81Original wording in English
FORD
Reported code forms P0496
*This article supersedes TSB 24-2199 to add the rear half shaft seals to the TSB parts list. Some of the vehicles listed in the model statement above may exhibit one of the following conditions: *Fuel tank not filling…
LAND ROVER
Reported code forms P0496-00
The Malfunction Indicator Lamp (MIL) may illuminate if the vehicle is refueled within 15 seconds of turning the engine off. Diagnostic Trouble Codes (DTC) P0496-00 may be stored in the Powertrain Control Module (PCM).…
LAND ROVER
Reported code forms P0496-00
The Malfunction Indicator Lamp (MIL) may illuminate if the vehicle is refueled within 15 seconds of turning the engine off. Diagnostic Trouble Codes (DTC) P0496-00 may be stored in the Powertrain Control Module (PCM).…
LAND ROVER
Reported code forms P0496-00
The Malfunction Indicator Lamp (MIL) may illuminate if the vehicle is refueled within 15 seconds of turning the engine off. Diagnostic Trouble Codes (DTC) P0496-00 may be stored in the Powertrain Control Module (PCM).…
LAND ROVER
Reported code forms P0496-00
The Malfunction Indicator Lamp (MIL) may illuminate if the vehicle is refueled within 15 seconds of turning the engine off. Diagnostic Trouble Codes (DTC) P0496-00 may be stored in the Powertrain Control Module (PCM).…
BUICK, CHEVROLET
Reported code forms p0496
This Preliminary information communicates a potential for dtc p0496 to fail due to damaged purge solenoid valve O-rings.
Check vehicle applicability
211A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| Buick | ENCORE | 2019 |
| Buick | ENCORE | 2018 |
| Buick | ENCORE | 2017 |
| Buick | ENCORE | 2016 |
| Buick | ENCORE | 2015 |
| Buick | ENCORE | 2014 |
| Buick | ENCORE | 2013 |
| Buick | ENCORE GX | 2025 |
| Buick | ENCORE GX | 2024 |
| Buick | ENCORE GX | 2023 |
| Buick | ENCORE GX | 2022 |
| Buick | ENCORE GX | 2021 |
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.
- 2024–2025 MY OBD System Operation Summary for Gasoline Engines ↗
Ford Motor Company · PDF page(s) 11, 12 ·
- 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.