ON-VEHICLE INSPECTION 1. CHECK FUEL PUMP OPERATION (a) Turn on the ignition switch. NOTE: Do not start the engine. (b) Short both terminals of the fuel pump check connector. (c) Check that there is a pressure in the hose to the cold start injector. NOTE: At this time, you will hear fuel return noise from the pressure regulator. (d) Remove service wire and install the rubber cap to the check terminal. (e) Turn off the ignition switch. If there is no pressure, check the following parts. • Fusible link • Fuse (EFI, 15A, IGNITION 7.5A) • Circuit opening relay • Fuel pump • Wiring connections 2. CHECK FUEL PRESSURE (a) Check the battery voltage above 12 volts. (b) Disconnect the battery ground cable. (c) Disconnect the wiring connector from the cold start injector. (d) Put a suitable container or shop towel under rear end of the delivery pipe. (e) Slowly loosen the union bolt of the cold start injector hose and remove the bolt and two gaskets from the delivery pipe. (f) Drain the fuel in the delivery pipe.