Mitsubishi MOTORS Space Runner 1999 Workshop Manual Supplement page 544

Special
patterns
pickup
Standard Wave Pattern
Observation condition
Function
Pattern height
Pattern selector
Engine r/min
Standard wave pattern
(V)
6
Crank angle
sensor output
4
wave pattern
2
0
6
Power transistor
control signal 4
wave pattern
2
0
MPI –
Troubleshooting
IGNITION COIL AND POWER TRANSISTOR
Analyzer
Measurement Method
1. Disconnect the distributor connector, and connect the
2. Connect the analyzer special patterns pickup to distributor
Alternate Method (Test harness not available)
1. Connect the analyzer special patterns pickup to
T
Compression
top dead centre
Point
θ
θ: Spark advance angle
Wave build-up section
Ignition coil primary signal
Refer to GROUP 16 – Ignition System.
Power transistor control signal
special tool (test harness: MB991348) in between. (All
terminals should be connected.)
connector terminal 3.
engine-ECU terminal 10.
Special patterns
Low
Display
Approx. 1,200 r/min
T: Revolution time corresponding
to a crank angle of 180_
OFF ON
Dwell section
13B-63
Time