Automatic Trans.

DESCRIPTION
The fuel evaporative system consists of fuel vapor valve, two-way check valve, charcoal canister, purge solenoid valve, PCM, and input devices. The amount of evaporative fumes introduced into the engine and burned is controlled by the solenoid valve to correspond to the engine's operating conditions. To obtain the best engine performance, the solenoid valve is controlled by the PCM.

OPERATION
The purge solenoid valve is controlled by duty signals from the PCM to perform purging of the charcoal canister. Purging is done when these conditions are met:
(1) After warm-up
(2) Driving in gear
(3) Accelerator pedal depressed
(4) Heated oxygen sensor functioning normally