2001 Kia Rio AutomaticFACTORY OEM SERVICE PROCEDURE

Fuel Injector Volume Test

NOTE: For Optima & Magentis (Canadian) and Rio, injector volume specification is not given by manufacturer.
  1. Remove fuel injectors together with fuel rail. Secure fuel injectors to fuel rail. Place end of injector to be tested in graduated cylinder.
  2. If using injector tester, connect injector tester between battery and injector. If not using injector tester, reconnect injector connectors. Connect jumper wire between injector to ECM wire and ground. See appropriate wiring diagram in 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.
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.

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