Mitsubishi Eclipse 1990 Service Manual page 664

ENGINE (TURBO)
ENGINE> of
<Heated oxygen sensor
1. Disconnect the heated oxygen sensor connector.
2. Make sure that there is continuity [approx. 12
between terminal 3 and terminal
oxygen sensor connector.
3. If there is no continuity, replace the heated oxygen sensor.
NOTE
1. the scan tool dose not display 'the standard
although no abnormality is found by the above men-
tioned continuity test and harness check, replace the
heated oxygen sensor (rear).
2. For removal and installation of the oxygen sensor,
refer to GROUP 15
INJECTOR CHECK
Measurement of Resistance between Terminals
1. Remove the injector connector.
2. Measure the resistance between terminals.
Standard value: 2-3
3. Install the injector connector
Checking operation sound
Using a stethoscope or long blade screwdriver, check the
operation sound ("tick-tick-tick") of injectors during idling or
during cranking
Check that as the engine speed increases, the frequency
of the operating sound also increases.
Caution
Note that even if the injector you are checking is not
operating, you will hear the operating sound of the other
injectors.
NOTE
If no operating sound is heard from the injector that
checked, check the injector drive circuit. If there is nothing
wrong with the circuit, a defective injector or ECM is suspected
Components'
Exhaust Pipe, Main-Muffler.
[at
Engine (Turbo)>
13-16 [at
Engine>
at
on
being