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3.3L AND 3.8L MULTI-PORT FUEL INJECTION—GENERAL DIAGNOSIS INDEX page page Fuel System Diagram . . . . . . . . . . . . . . . . . . . . 157 Visual Inspection . . . . . . . . . . . . . . . . . . . . . . . . 157 FUEL SYSTEM DIAGRAM Refer to the Component Identification portion of this section for a more complete description of the VISUAL INSPECTION Perform a visual inspection for loose, disconnected, or misrouted wires and hoses before diagnosing or (1) Check ignition cable routing from the coil pack to the spark plugs. Verify the cable are routed in the (2) Check direct ignition system (DIS) coil electri- cal connection for damage and a complete connection (3) Verify the camshaft position sensor electrical connector is connected to the harness and not dam- (4) Ensure the engine temperature sensor electri- cal connector is connected to the sensor and not dam- (5) Ensure the coolant temperature sensor electri- cal connector is connected to the sensor and not dam- (6) Verify the quick connect fuel fittings are fully inserted on the fuel supply and return tubes. (7) Check the vacuum hose connection at the fuel pressure regulator for damage or leakage (Fig. 5). (8) Check the oil pressure sending unit electrical connection (Fig. 6). (9) Verify the electrical connector is attached to the Purge Solenoid (Fig. 7) and not damaged. (10) Verify the vacuum connection at the purge so- lenoid is secure and not leaking (Fig. 7). Fig. 1 Multi-Port Fuel Injection Components Ä FUEL SYSTEMS 14 - 157 |