Reference meaning
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.
Narrow by vehicle
A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
Manufacturer example · limited applicability
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.
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.
Scan worksheet →Manufacturer wording
Source wording can vary by vehicle and suffix. It is shown as written, not as a universal diagnosis.
P0496EVAP SYSTEM HIGH PURGE FLOW
Manufacturer communications
81Original wording in English
FORD
*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 up beyond half-full *Hard to start *Stalls upon restart after refueling *A malfunction indicator lamp (MIL) with…
LAND ROVER
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). The PCM requires a software update.
LAND ROVER
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). The PCM requires a software update.
LAND ROVER
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). The PCM requires a software update.
Check vehicle applicability
211A 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.
- 2024–2025 MY OBD System Operation Summary for Gasoline Engines ↗
Ford Motor Company · PDF page(s) 11, 12 · 2024-04-16
- 01-19-09TT / 2057754/2 · EVAP faults after software update ↗
Volkswagen Group of America · PDF page(s) 1, 2 · 2020-10-02
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.