Mazda 323 1988 Workshop Manual page 252

4A
EVAPORATIVE EMISSION CONTROL SYSTEM
EVAPORATIVE EMISSION CONTROL SYSTEM
Solenoid valve
n/(for vacuum wit&
Engine control Unit
Solenoid w
[
\ Fuel tank
way
valve
The
evaporative emission control system is controlled by signal from the water therm0 sensor, intake
air therm0 sensor, air flow sensor, and engine speed sensor (ignition coil).
The
engine control unit
determined the engine operating conditions from the signals, and control the evaporative emission
control system by operating the solenoid valves for No. 1 purge control valve and vacuum switch valve
when specified coiiditions-exist.
TROUBLE SHOOTING CHART
POSSIBLE CAUSE
Checking order
4A-52 323
Revised 10187