Injector Circuit

INJECTOR CIRCUIT

Circuit Description

The injectors are provided to the intake manifold. They inject fuel into the cylinders based on the signals from the engine control module.




Diagnostic Chart




Wiring Diagram

Inspection Using an Oscilloscope

- With the engine idling measure between terminals #10, #20 and EO1 of engine control module.

Correct Waveform:

Correct Individual Waveform (Magnified):

NOTE: The correct waveform appears as shown in the illustrations above.

Step 1:

Step 2:

Step 3:

Step 4:

Inspection Procedure