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