Use following procedure if the fuel injector rail is, or is not equipped with a fuel pressure test port.Remove fuel fill cap.Disconnect wiring harness leading to fuel pump module at top of fuel tank. Refer to Wiring Diagrams for connector location.Start and run engine until it stalls.Attempt restarting engine until it will no longer run.Turn ignition key to OFF position.Place a rag or towel below fuel line quick-connect fitting at fuel rail.Disconnect quick-connect fitting at fuel rail. Refer to Quick-Connect Fittings.After performing service procedure, reconnect fuel pump module.One or more Diagnostic Trouble Codes (DTC's) may have been stored in PCM memory due to the disconnection of fuel pump module. A diagnostic scan tool must be used to erase a DTC.