OBD Guide

P0496

EVAP System High Purge Flow

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