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P0171 FUEL INJECTION SYSTEM FUNCTION EC-181 < DTC/CIRCUIT DIAGNOSIS > [HR12DE (TYPE 1)] C D E F G H I J K L M A EC N P O 2. Listen to each fuel injector operating sound. Is the inspection result normal? YES >> GO TO 8. NO >> Perform trouble diagnosis for FUEL INJECTOR. Refer to EC-285, "Component Function Check" . 8. CHECK FUEL INJECTOR 1. Turn ignition switch OFF. 2. Confirm that the engine is cooled down and there are no fire hazards near the vehicle. 3. Disconnect all fuel injector harness connectors. 4. Remove fuel tube assembly. Refer to . Keep fuel hose and all fuel injectors connected to fuel tube. 5. Disconnect all ignition coil harness connectors. 6. Prepare pans or saucers under each fuel injector. 7. Crank engine for about 3 seconds. Is the inspection result normal? YES >> GO TO 9. NO >> Replace fuel injectors from which fuel does not spray out. Always replace O-ring with new ones. Refer to . 9. CHECK INTERMITTENT INCIDENT Check intermittent incident. Refer to GI-33, "Intermittent Incident" . >> Repair or replace malfunctioning part. Clicking noise should be heard. PBIB3332E Fuel should be sprayed evenly for each fuel injector. PBIA9666J |