General Information

P0497 Evaporative Emission System Low Purge Flow

General Information

Component Location





General Description

The evaporative emission control system prevents hydrocarbon (HC) vapors from the fuel tank from escaping into the atmosphere where they could form photochemical smog. Gasoline vapors are collected in the charcoal canister. The ECM controls the Purge Control Solenoid Valve (PCSV) to purge any collected vapors from the canister back to the engine for combustion. This valve is actuated by the purge control signal from the ECM and controls fuel vapor from the canister to the intake manifold.

DTC Description

If the Reference value of differential tank pressure is over -0.1 hPa, ECM determines that PCSV is Close stuck and sets DTC P0497.

DTC Detecting Condition





Specification





Diagnostic Circuit Diagram