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ENGINE DRIVEABILITY AND EMISSIONS 6E–93 5 1. Set the Injector Adapter Cable to injector #1. 2. Press the “Push to Start Test” button on the fuel injector tester. 3. Observe the voltage reading on the DVM. Important: The voltage reading may rise during the 4. Record the lowest voltage observed after the first second of the test. 5. Set the Injector Adapter Cable to the next injector and repeat steps 2, 3, and 4. Did any fuel injector have an erratic voltage reading 9.5V Go to Step 4 Go to Step 6 6 1. Identify the highest voltage reading recorded (other than those above 9.5V). 2. Subtract the voltage reading of each injector from the highest voltage selected in step 1. Repeat until For any injector, is the subtracted value in step 2 0.6V Go to Step 4 Go to Step 7 7 Caution: In order to reduce the risk of fire and 1. Connect the 5-8840-0378-0 Fuel Pressure Gauge to the fuel pressure test port. 2. Energize the fuel pump using the Scan Tool. 3. Place the bleed hose of the fuel pressure gauge into an approved gasoline container. 4. Bleed the air out of the fuel pressure gauge. 5. With the fuel pump running, observe the reading on the fuel pressure gauge. Is the fuel pressure within the specified values? 296kPa- 376kPa (43-55psi) Go to Step 8 Go to Fuel System Diagnosis 8 Turn the fuel pump OFF. — Go to Step 9 Go to Fuel System Diagnosis Step Action Value(s) Yes No |