FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
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FD3 - Check Fuel Injector Resistance



WARNING: Fuel in the fuel system remains under high pressure even when the engine is not running. To avoid injury or fire, release the fuel pressure from the fuel system before disconnecting any fuel line.

To release fuel pressure refer to Service and Repair/Fuel System Pressure Relief.

^ Remove the electrical connectors from the injectors. If necessary, remove the fuel injectors to gain access to the injector terminals.

^ Measure the electrical resistance of each injector.

^ Is the resistance of all injectors approximately 12-16 ohms (20°C [68°F])?

YES -- Go to FD4. FD4 - Fuel Injector Cleaning and Leakage Check

NO -- Replace the faulty injectors rerun Fuel Pressure Test.

- If injectors are OK, Go to pinpoint test FD4.FD4 - Fuel Injector Cleaning and Leakage Check