Fuel Injector On-Vehicle Inspection
Precautions: Precautions for Fuel System Service · General safety (00)
1)Using sound scope or the like, check operating sound of fuel injectors when engine is running or cranking.
Cycle of operating sound should vary according to engine speed.
If no sound or an unusual sound is heard, check that result of each step is in good condition.
Cycle of operating sound should vary according to engine speed.
If no sound or an unusual sound is heard, check that result of each step is in good condition.
2)Disconnect connector from fuel injector.
3)Connect ohmmeter between terminals of fuel injector and check resistance.
If resistance is not as specified, replace fuel injector.
If resistance is not as specified, replace fuel injector.
Resistance of fuel injector
About 0.5 Ω
4)Connect connector to fuel injector securely.