Mitsubishi Pajero Pinin 1999 Workshop Manual page 158

13A-86
Standard wave pattern
Crank angle
sensor output
wave pattern
Camshaft posi-
tion sensor out-
put wave pat-
tern
TDC: Top dead centre
Wave Pattern Observation Points
Check that cycle time T becomes shorter when the engine speed increases.
GDI ±
2 engine revolutions
(1 camshaft revolution)
(V)
75 _ BTDC
5 _ BTDC
4
0
4
0
No. 1 No. 3 TDC
TDC
Examples of Abnormal Wave Patterns
Troubleshooting
T
No.
No. 4
TDC
TDC
Example 1
Cause of problem
Sensor interface malfunction
Wave pattern characteristics
Rectangular wave pattern is output even when the engine
is not started.
Example 2
Cause of problem
Loose timing belt
Abnormality in sensor disk
Wave pattern characteristics
Wave pattern is displaced to the left or right.
The time (cycle time) T is
reduced when the engine
speed increases
Time
2