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Fuel Injector|Service and Repair > < Fuel Injector|Specifications|Page 2648
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Fuel Injector: Testing and Inspection

Fuel Injector Resistance Check

1. Remove the injector connector.
2. Measure the resistance between terminals.

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Standard value: 13-16 ohms [at 2O°C (68° F)]

3. Install the injector connector

Checking Operation Sound

Using a stethoscope or long blade screwdriver, check the operation sound ('tick-tick-tick") of injectors during idling or during cranking 

Check that as the engine speed increases, the frequency of the operating sound also increases.

NOTE:  that even if the injector you are checking is not operating, you will hear the operating sound of the other injectors

NOTE:  If no operating sound is heard from the injector that is being checked, check the injector drive circuit. If there is nothing wrong with the
circuit, a defective injector or PCM is suspected

Fuel Injector|Service and Repair > < Fuel Injector|Specifications|Page 2648