General Information

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 PCM 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 PCM and controls fuel vapor flow from the canister to the intake manifold.

DTC Description

Checking output signals from fuel tank pressure sensor under evap.system test, if fuel tank's vacuum is lower than prescribed threshold, PCM sets P0455 and then MIL (Malfunction Indication Lamp) turns on.

DTC Detecting Condition