Fuel Injector Volume (MPV)
WARNING: This page is about a different car, the 2000 Mazda Protege, 2000 Mazda Millenia, 2000 Mazda MX-5 Miata, 2000 Mazda MPV, and 2000 Mazda 626. 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 a fuel injector tester, check each injector output for 15 seconds. If injector output volume is not 44-58 cc's, replace suspect injector.