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FUEL DELIVERY DESCRIPTION The front wheel drive car uses a plastic fuel tank located rear center of the vehicle. The Fuel Delivery System consists of: the following items: • Electric fuel pump module • Fuel filter • Tubes/lines/hoses • Fuel injectors The in-tank fuel pump module contains the fuel pump. The pump is serviced as part of the fuel pump module. Refer The fuel filter is replaceable only as part of the fuel pump module. OPERATION The fuel system provides fuel pressure by an in-tank pump module. The Powertrain Control Module (PCM) controls • Ignition voltage • Crankshaft Position (CKP) sensor • Camshaft Position (CMP) sensor DIAGNOSIS AND TESTING - FUEL DELIVERY SYSTEM (Refer to Group 9 Engine for all Powertrain Diagnostic Information) STANDARD PROCEDURE STANDARD PROCEDURE - FUEL SYSTEM PRESSURE RELEASE PROCEDURE 1. Remove Fuel Pump relay from Power Distribution Center (PDC). For location of relay, refer to label on underside of PDC cover. 2. Start and run engine until it stalls. 3. Attempt restarting engine until it will no longer run. 4. Turn ignition key to OFF position. 5. Return fuel pump relay to PDC. 6. One or more Diagnostic Trouble Codes (DTC’s) may have been stored in PCM memory due to fuel pump relay removal. The scan tool must be used to erase a DTC. STANDARD PROCEDURE - DRAINING FUEL TANK 1. Release the fuel pressure, refer to the Fuel Pressure Release Procedure in this section. 2. Disconnect negative battery cable. NOTE: The fuel level of the vehicle must be below 5/8 of a tank before you remove the module lock-rings. 14 - 2 FUEL DELIVERY LX |