Mitsubishi 3000GT Service Manual page 363

Function Item No.
Actuator test 01
02
03
04
05
Normal waveform
HARNESS INSPECTION
Refer to P.l3A-146.
ACTUATOR INSPECTION
Refer to P.l3A-147.
MULTIPORT
On-Vehicle Inspection of MFI
FUEL INJECTION - Components
Drive content
No. 1 injector shut off
No. 2 injector shut off
No. 3 injector shut off
No. 4 injector shut off
No. 5 injector shut off
Using Oscilloscope
(1) Run the engine at idle speed.
(2) Connect the probe to the oscilloscope pick-up point as
shown in the circuit diagram,
at the
TSB
Revision
Check condition
Engine: Idling after
warm-up
(Shut off the injectors in
sequence during idling
after engine warm-up,
check the idling condi-
tion)
I
and check the waveform
drive side of each injector.
1
Normal state
Idle state to change fur-
ther (becoming less
stable or stalling)