Operation CHARM: Car repair manuals for everyone.

On-Car Inspection


- With battery negative cable disconnected, disconnect injector coupler.

Checking Fuel Injector Resistance:





- Connect ohmmeter to each injector terminal and measure resistance.

RESISTANCE VALUE
0.5 - 1.5 ohms @ 2O° C (65° F)

If resistance is out of specification, replace fuel injector.

- Connect injector coupler.
- Remove air cleaner assembly without connecting ATS coupler.

Checking Fuel Injector Spray Pattern:





- Check that fuel is injected out in cone shape from fuel injector when cranking running engine.
^ If no fuel is injected, check wiring harness for continuity and couplers for proper connection. Refer to Powertrain Management/Computers and Control Systems/Testing and Inspection/Procedures.
^ If fuel is not injected out in conical shape, replace injector.
- Check injector for fuel leakage after injection is stopped (i.e., after cranking or engine stop). Replace if leakage exists.

FUEL LEAKAGE
Less than 1 drop/min.

- Install air cleaner assembly.