100%
EG–472
ENGINE – 2JZ–GE ENGINE TROUBLESHOOTING
Injector Circuit
CIRCUIT DESCRIPTION
The injectors are located in the intake manifold. They inject fuel into the cylinders based on the signals from the engine control module.
Reference INSPECTION USING OSCILLOSCOPE
• With the engine idling measure waveform between terminals #10 ~ 60 and E01 of engine control module.
HINT: The correct waveform is as shown.
Injector Signal Waveform
10 V/Div.
GND
100 msec./Division (Idling)
(Magnification)
10 V/Div.
GND
1 msec./Division (Idling)
Injection duration
FI6588 FI6538
WIRING DIAGRAM
Ignition Switch
W-R
2
B-O
3
9
U1
B-O
4
IB1
W-R
2
AM2
1
2A
R/B No.2
B
Battery
FI6944
Injector Engine Control Module
B-O No.1 R-L 20
2 1 E9 #10
B-O No.2 R-Y 19
2 1 E9 #20
B-O No.3 R-G 18
2 1 E9 #30
B-O No.4 R-W 17
2 1 E9 #40
B-O No.5 R 16
2 1 E9 #50
B-O No.6 R-B 15
2 1 E9 #60
BR 80
E9 E01
BR 79
E9 E02