Using Voltmeter

WARNING: This page is about a different car, the 2004 Kia Amanti. However, it is still accessible from the selected car via links, so may be relevant.

Resistance measurement between terminals
1. Disconnect the connector at the injector.
2. Measure the resistance between terminals.
  Standard value: 13 - 16Ω (at 20 °C (68 °F))
3. Re-connect the connector to the injector.

Fig 1: Testing Injector Resistance

Courtesy of KIA MOTORS AMERICA, INC.