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Fuel Injector Volume Test

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2002 Kia Sportage, 2002 Kia Spectra, 2002 Kia Sedona, 2002 Kia Rio, and 2002 Kia Optima. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: Injector volume specification for Optima & Magentis (Canadian), Rio and Sedona is not available from manufacturer.
  1. Remove fuel injectors together with fuel rail. For fuel injectors removal, see FUEL DELIVERY PIPE & FUEL INJECTORS under FUEL SYSTEM in REMOVAL, OVERHAUL & INSTALLATION article. Secure fuel injectors to fuel rail. See Figure. Place end of injector to be tested in graduated cylinder.
  2. If using injector tester, connect injector tester between battery and injector. See Fig 1. If not using injector tester, reconnect injector connectors. Connect jumper wire between injector to ECM wire and ground. See WIRING DIAGRAMS article for wire colors.
  3. Turn ignition on. Time injector flow and measure volume. Injector flow should be 4.4 oz. (130 ml) per minute. If volume is not as specified, replace injector. Use NEW "O" rings when installing injectors.
Fig 1: Performing Fuel Injector Volume Test
G00082405Courtesy of KIA MOTORS AMERICA, INC.
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