P0497 fault code: what it means

P0497: EVAP purge flow lower than expected when the ECU opened the purge valve.

Engine and gearbox (powertrain) · Minor

Usual causes, most likely first

EVAP purge valve stuck closed
pinched or blocked purge hose
EVAP pressure sensor
blocked canister

P0497 by make

Honda

EVAP purge flow lower than expected when the ECU opened the purge valve.

Usual causes: EVAP purge valve stuck closed; pinched or blocked purge hose; EVAP pressure sensor; blocked canister

What the repair usually costs

CVT valve body replacement (remanufactured, in car)NZ$1,280–NZ$2,420 · A$1,200–A$2,400

Not sure what P0497 means on your car? Ask Credov.

Before you clear it

Write the code down or photograph the scanner first. A code that comes straight back after clearing points to a fault that is still there. A car whose codes were cleared just before you arrived may be hiding one: the scanner's readiness monitors show "not ready" for a while after codes are cleared.

Researched by Credov from manufacturer and workshop sources. A fault code points to where a fault may be; a workshop confirms it with a diagnosis. Browse all fault codes.