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Fuel Injector Volume

  1. Disconnect battery. Remove fuel rail assembly and fuel injectors from intake manifold. See REMOVAL, OVERHAUL & INSTALLATION article.
  2. Using a fused jumper wire, connect DLC-1 connector terminals F/P and GND. Connect aftermarket fuel injector tester to fuel injector. Turn ignition on for 15 seconds. Measure each fuel injector output volume. See FUEL INJECTOR OUTPUT VOLUME SPECIFICATIONS  table. If fuel injector output volume is not as specified, replace fuel injector.
  3. When all fuel injectors have been checked, remove fuel injector tester and reinstall all components. Check system for leaks.
FUEL INJECTOR OUTPUT VOLUME SPECIFICATIONS

Application Quantity (cc)
MAZDA6 (2.3L) 61-79
Miata 68-82
MAZDA6 (3.0L) & MPV 49-65
Protege & Protege5 68-75
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