Diagnostic Trouble Code
P0497 — EVAP Emission System Low Purge Flow
EVAP Emission System Low Purge Flow
Definition
The EVAP system is detecting lower purge flow than expected when the purge valve is commanded open.
Common Causes
- Purge valve stuck closed or partially blocked
- Kinked or blocked purge hose
- Charcoal canister saturated or restricted
- Faulty EVAP pressure sensor