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11. FUEL INJECTOR 1 Turn the ignition off. Disconnect the Fuel Injector 1 harness connector. Turn the ignition on. With the scan tool, clear DTCs. With the scan tool, actuate the Fuel Injector 1 control. Using a 12 volt test light connected to 12 volts check the (K11) Injector NOTE: The test light should blink each time the circuit is actuated Does the test light blink each time the circuit is actuated by Yes >> Replace the Fuel Injector 1 in accordance with the Service Information. Perform the PCM Verification Test Ver. 1 (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING) No >> Go to 12 12. (K11) INJECTOR 1 CONTROL CIRCUIT Turn the ignition off. Disconnect the Powertrain Control Module (PCM) connector. Check the (K11) Injector 1 Control circuit for an open circuit, short to Were any problems found? Yes >> Repair the (K11) Injector 1 Control circuit for high resistance or a shorted condition. Perform the PCM Verification Test Ver. 1 (Refer to 9 - No >> Go to 17 13. 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 (for 5/16) or #6631 (for 3/8) fuel line adapter and the fuel pressure gauge between the fuel Turn the ignition on. With the scan tool, actuate the fuel pump to ON (100%) and observe the fuel pressure gauge. PM ENGINE ELECTRICAL DIAGNOSTICS - GPEC 9 - 263 |