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10. FUEL INJECTOR Turn the ignition off. Disconnect the No.3 Fuel Injector harness connector. Ignition on, engine not running. NOTE: When a Misfire is detected for a particular cylinder, the PCM Using a 12-volt test light connected to 12-volts, probe the (K13) Injector With the scan tool, actuate the Fuel Injector. Does the test light blink/flicker? Yes >> Replace the Fuel Injector. Perform the POWERTRAIN VERIFICATION TEST. (Refer to No >> Go To 11 11. (K13) INJECTOR CONTROL NO.3 CIRCUIT Turn the ignition off. Disconnect the C2 PCM harness connector. CAUTION: Do not probe the PCM harness connectors. Probing the Was a problem found with the (K13) Injector Control No.3 cir- Yes >> Repair the excessive resistance or short in the (K13) Injec- tor Control No.3 circuit. Perform the POWERTRAIN VERIFICATION TEST. (Refer to No >> Go To 16 12. FUEL SUPPLY LINE RESTRICTED Turn the ignition off. WARNING: The fuel system is under a constant pressure (even with the engine off). Before testing or ser- Install special tool #6539 (5/16 9 ) #6631(3/8 9 ) fuel line adapter and the fuel pressure gauge between the fuel supply line and the fuel pump module. Ignition on, engine not running. With a scan tool, actuate the ASD Fuel System test and observe the fuel pressure gauge. 9 - 258 ENGINE ELECTRICAL DIAGNOSTICS KJ |