Mitsubishi MOTORS Space Runner 1999 Workshop Manual Supplement page 539

13B-58
Special
patterns
pickup
Standard Wave Pattern
Observation conditions
Function
Pattern height
Pattern selector
Engine r/min
Standard wave pattern
75 BTDC
(V)
0
TDC: Top dead centre
Wave Pattern Observation Points
Check that cycle time T becomes shorter when the engine speed increases.
MPI –
Troubleshooting
INSPECTION PROCEDURE USING AN
Analyzer
ANALYZER
CRANK ANGLE SENSOR
Measurement Method
1. Disconnect the distributor (crank angle sensor) connector
and connect the special tool (test harness: MB991348)
in between. (All terminals should be connected.)
2. Connect the analyzer special patterns pickup to distributor
connector terminal 5.
Alternate Method (Test harness not available)
1. Connect the analyzer special patterns pickup to
engine-ECU terminal 89.
2 engine revolutions
(1 camshaft revolution)
5 BTDC
No. 1 No. 3 TDC
TDC
Special patterns
Low
Display
Idle speed
No. 4 No.
TDC TDC
13100930363
The time (cycle time) T is
reduced when the engine
speed increases
Time
2