Fuel Injector

FUEL INJECTOR




Component Description
The fuel injector is a small, precise solenoid valve. When the ECM supplies a ground to the fuel injector circuit, the coil in the fuel injector is energized. The energized coil pulls the ball valve back and allows fuel to flow through the fuel injector into the intake manifold. The amount of fuel injected depends upon the injection pulse duration. Pulse duration is the length of time the fuel injector remains open. The ECM controls the injection pulse duration based on engine fuel needs.




CONSULT-II Reference Value in Data Monitor Mode

EC-INJECT-01:

Wiring Diagram

Diagrams: Other diagrams referred to by name within these diagrams can be found at Diagrams By Diagram Name. Diagrams By Diagram Name

Step 1-2:

Step 2 (Continued)-5:

Step 5 (Continued)-7:

Diagnosis Procedure

Component Inspection

FUEL INJECTOR
1. Disconnect fuel injector harness connector.




2. Check resistance between terminals as shown in the figure.

Resistance: 11.1 - 14.5 ohms [at 10 - 60 °C (50 - 140 °F)]

3. If NG, replace fuel injector.