Diagnostic Trouble Code
P0496 — EVAP Emission System High Purge Flow
EVAP Emission System High Purge Flow
Definition
The EVAP system is detecting purge flow when none is commanded. Fuel vapors are being drawn into the engine at the wrong time.
Common Causes
- Purge valve stuck open
- Purge valve leaking internally
- Faulty EVAP pressure sensor giving false readings