OBD Guide

P0496

EVAP System High Purge Flow

P0496 is an OBD-II diagnostic trouble code meaning: EVAP System High Purge Flow. Common causes: evap purge valve malfunction, clogged or damaged adsorber. Estimated repair cost: $33–111.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$33–111 (est.)

Symptoms

  • Check Engine light comes on
  • Slight deterioration in fuel consumption
  • Smell of gasoline in the cabin or under the hood

Causes

  • EVAP purge valve malfunction
  • Clogged or damaged adsorber
  • Leaks in the EVAP system
  • Problems with the wiring harness or connectors
  • Fuel tank pressure sensor malfunction

How to Fix

  1. Check the EVAP purge valve for sticking or leaks.
  2. Inspect the adsorber for damage
  3. Check the EVAP system for leaks
  4. Check the integrity of the wiring harness and connectors
  5. Scan the system for additional errors

Related codes

Error P0496 by Vehicle Brand

FAQ

What does the P0496 code mean?

P0496 is an OBD-II diagnostic trouble code that indicates: EVAP System High Purge Flow

What causes a P0496 error code?

The most common causes of P0496 include: EVAP purge valve malfunction; Clogged or damaged adsorber; Leaks in the EVAP system; Problems with the wiring harness or connectors.

How do I fix a P0496 diagnostic trouble code?

To fix P0496: Check the EVAP purge valve for sticking or leaks.. Inspect the adsorber for damage. Check the EVAP system for leaks. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P0496?

Limited driving only, diagnose soon

How much does it cost to fix P0496?

The estimated repair cost for P0496 is $33–111. Actual cost depends on your vehicle, location, and labor rates.

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