JAC J2 - Page 131

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
Maintenance Manual for J2 Sedan
Mechanical Part of Engine
130
③

Dismount
the
carbon
canister
Lift the carbon canister and dismount it from the
bracket on inner lining of left fender.
2)
EV
AP
carbon
canister
solenoid
valve
The air flow rate is controlled by the opening of evaporation by-pass passage in EVAP carbon canister
solenoid valve. The solenoid valve will repeat the operations of “ON” and “OFF” with signal from ECM
to actuate the variation of valve opening, so as to optimize engine control. The optimum value
memorized in ECM lies on the state of engine. When the engine operates, flow rate of fuel evaporation
from EVAP carbon canister is adjusted along with the variation of air flow.
①
 Instruction of
parts
Flow rate of fuel evaporation from EVAP carbon canister is controlled by duty cycle of ON/OFF of the
solenoid valve. The solenoid valve is actuated by ON/OFF duty cycle signal from ECM. The wider the
pulse width in “ON” condition is, the more fuel evaporation
will flow through
the valve.
②
 Dismantlement
a.
Disconnect
the
vacuum
hose
of
EV
AP
carbon
canister solenoid valve.
左前车架
左前车架
左前车架
左前车架

Fig. 1.5.003
Fig. 1.5.002

Left front frame