Grand Vitara 4WD L4-2.4L (2009)
Fuel Injector: Testing and Inspection
Fuel Injector On-Vehicle Inspection
Fuel Injector On-Vehicle Inspection
1. Using sound scope (1) or the like, check operating sound of injector (2) when engine is running or cranking.
Cycle of operating sound should vary according to engine speed.
If no sound or unusual sound is heard, check injector circuit (wire or connector) or injector.
2. Disconnect connector (1) from injector, connect ohmmeter between terminals of injector and check resistance.
If resistance is out of reference value greatly, replace.
Reference resistance of fuel injector
11.6 - 12.4 Ohms at 20 °C, 68 °F
