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PROBLEM SYMPTOM SUSPECTED AREA SUSPECTED COMPONENT PROCEDURE Abnormal A/F learning value Air fuel ratio sensor Deviation from fuel injection characteristics Fuel injector assembly Wet-fouled or dry-fouled spark plug Spark plug Fuel pump Fuel pump control system (2) Systems to inspect. TROUBLESHOOTING BY SYSTEM SUSPECTED AREA SUSPECTED COMPONENT PROCEDURE Fuel system troubleshooting A Abnormal A/F learning value Fuel injector assembly 86 to 93 94 to 101 Rough idling Crankshaft position sensor Abnormal fuel pressure Fuel Fuel leak from fuel line Fuel pump Pressure regulator Fuel system troubleshooting B Purge VSV system Fuel injector assembly 102 to 104 Fuel system troubleshooting C Injection signal system malfunction Fuel injector assembly Crankshaft position sensor VVT sensor ECM 73 to 76 Intake system troubleshooting Difference between ISC target value and opening angle when idling Engine assembly (compression loss) Valve timing Engine coolant temperature sensor ECM 83 to 85 105 to 107 Ignition system troubleshooting Camshaft and/or crankshaft position sensor signal malfunction Crankshaft position sensor system (including sensor installation) VVT sensor system (including sensor installation) ECM 77 to 82 108 to 113 PROCEDURE 1UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P1604; Startabi... |