Toyota TERCEL 1985 Repair Manual page 123

EMISSION CONTROL SYSTEMS - Carburetor Feedback System
Vacuum
Switch
(b) Start the engine and warm up the engine normal
operating temperature.
(c) Using an ohmmeter, check for continuity between
the switch terminal and the body.
INSPECTION OF TVSV
(See page EC-22)
INSPECTION OF Ox SENSOR
CHECK Ox SENSOR WITH VOLTMETER
(a) Warm up the engine to normal operating tem-
perature.
(b) Connect the voltmeter to the service connector.
Service connector location:
low the wiper motor.
Connect the (+) testing probé to the Ox terminal and
(-) testing probé to terminal E.
(c) Race engine at 2,500 rpm for about 90 seconds.
(d) Maintain the engine speed at 2,500 rpm.
(e) Check that the needle of the voltmeter fluctuates
within 0 - 7 volts 8 times or more ¡n 10 seconds.
NOTE:
• If this test is positive, the Ox sensor is OK.
• If not, inspect the other parts, hose connections and
wiring of carburetor feedback system. (See from page
EC-32).
If no problem is found, replace Ox sensor.
EC-35
Right tender apron be-