Mitsubishi 1989-1993 GALANT Service Manual page 324

FUEL SYSTEM <SOHC-16 VALVE> - ~~~;~~~t~pection Of MF'
INSPECTION
Using Scan Tool
Function
I
Data reading / 41
41
Data reading
NOTE
The injector drive time refers to when the supply voltage is 11 V and the cranking speed is less than 250 rpm.
When engine coolant temperature is lower than 0°C (32°F). injection is made by four cylinders simultaneously.
When the vehicle is new [within initial operation of about 500 km (300 miles)], the injector drive time may be about
10% longer
F u n c t i o n I t e m N o .
Actuator test 01
0
03
04
Normal waveform
drive time
Check condition
Data display 1
D r i v e trme *' 1 Engine: Cranking
C h e c k c o n d i t i o n I
Data display 1
Drive time *3 Engine coolant
l
temperature: 85 to
Lights, electric
l
cooling fan, accesso-
ries: OFF
Transaxle: Neutral
l
D r i v e c o n t e n t
No. 1 injector shut off
2 No. 2 injector shut off
No. 4 injector shut off
Using Oscilloscope
shown in the circuit diagram,
the
TSB Revision
Engine
Check condition
Engine: Idling after
(Shut off the injectors in
sequence during after
engine warm-up, check
the idling condition)
and check the waveform at
drive side of each injector.
Standard value
Approx. 20 ms
Approx. 40 ms
Standard value
state
Normal state
(becoming less stable or
stalling)