Mitsubishi MOTORS Space Runner 1999 Workshop Manual Supplement page 451

13A-92
Special
patterns
pickup
Standard Wave Pattern
Observation condition
Function
Pattern height
Pattern selector
Engine r/min
Standard wave pattern
Crank angle
sensor output
wave pattern
Power transistor
control signal
wave pattern
GDI –
Troubleshooting
IGNITION COIL AND POWER TRANSISTOR
Analyzer
Power transistor control signal
Measurement Method
1. Disconnect the ignition coil connector, and connect the
2. Connect the analyzer special patterns pickup to terminal
Alternate Method (Test harness not available)
1. Connect the analyzer special patterns pickup to
(V)
T: Revolution time corresponding to a crank angle of 180
T
6
Compression top dead center
4
2
0
θ
θ: Spark
4
advance
angle
2
0
special tool (test harness: MB991658) in between. (All
terminals should be connected.)
3 of each ignition coil connector in turn.
engine-ECU terminal 10 (No. 1 ignition coil), terminal 11
(No. 2 ignition coil), terminal 23 (No. 3 ignition coil), terminal
24 (No. 4 ignition coil) respectively.
Special patterns
Low
Display
Approx. 1,200 r/min
OFF ON
Dwell section
Ignition period
Time