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INJECTOR CHECK
 
 
<Checking the Operation Sound>
1. Set the vehicle to the continuous idling mode.
2. Using a stethoscope or long blade screwdriver, check the operation sound ("tick-tick-tick") of injectors. Check that as the engine speed increases, the frequency of the operating sound also increases.
3. If the injector you are checking is not operating, you may hear the operating sound of the other injectors.
4. 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 ECM is suspected.
 
 
 
<Checking the Coil Resistance>
 
 
1. Disconnect the injector connector.
2. Measure the resistance between injector side connector terminals 1 and 2.
Standard value: 10.5 - 13.5 Ω [at 20°C (68°F)]
3. If the resistance deviates from standard value, replace the injector.
4. Connect the injector connector.