FUEL PUMP RELAY
INSPECTION
1) Disconnect negative cable at battery.
2) Remove fuel pump relay (1) from its connector.
3) Structure of fuel pump relay is the same as that of main relay.
Check its resistance and operation using the same procedure
as that for main relay.
If found defective, replace.
FUEL CUT OPERATION
INSPECTION
NOTE:
Before inspection, check to make sure that gear shift lever is
in neutral position (with A/T model, selector lever in “P”
range) and that parking brake lever is pulled all the way up.
1) Warm up engine to normal operating temperature.
2) While listening to sound of injector (2) by using sound scope (1)
or such, increase engine speed to higher than 3,000 r/min.
3) Check to make sure that sound to indicate operation of injector
stops when throttle valve is closed instantly and it is heard again
when engine speed is reduced to less than about 2,000 r/min.
CMP SENSOR
Refer to Section 6F for removal, installation, inspection and adjust-
ment of CMP sensor.
ENGIINE AND EMISSION CONTROL SYSTEM
6E1-65
SH410