Fuel Injector Volume (Millenia 2.3L & 2.5L & 626 2.5L)
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2002 Mazda Protege5, 2002 Mazda Protege, 2002 Mazda Millenia, 2002 Mazda MX-5 Miata, and 2002 Mazda MPV. However, it is still accessible from the selected car via links, so may be relevant.
- Disconnect battery. Remove fuel rail assembly and injectors from intake manifold. See REMOVAL, OVERHAUL & INSTALLATION article.
- Using mechanics wire, secure each fuel injector to fuel rail. Disconnect fuel injector connectors. Reconnect fuel lines to fuel rail.
- Connect Special Service Tool (SST) 49-E018-9A0 to fuel injectors. On 2.3L model, use SST (49-T018-901 and 49-E018-901). See Fig 1 . Using a fused jumper wire, connect DLC-1 connector terminals F/P and GND. On 626, remove fuel pump relay and ground fuel pump relay socket terminal No. 30. Turn ignition switch on. Select injector to be tested and push button on SST for 15 seconds. Measure fuel injector output volume. See FUEL INJECTOR OUTPUT VOLUME SPECIFICATIONS table. If fuel injector output volumn is not as specified, replace fuel injector.
- When all injectors have been checked, remove SST and reinstall all components. Check system for leaks.