Component Inspection

■ Perform Injector Actuation Test 

1. Connect KDS/GDS to Data Link Connector (DLC).
2. Ignition "ON" & ENG "OFF"
3. Perform "ACTUATION TEST " for Injector.
   Fig 1: Display - Injector Disable Cylinder 2 Actuation Test Screen

   Courtesy of KIA MOTORS AMERICA, INC.

■ Check Injector performance 

1. Ignition "OFF"
2. Connect VMI to KDS/GDS and select "Oscilloscope".
3. Connect Channel A positive probe to Pin No. 2 (High side) and Channel A negative probe to Pin No. 1 (Low side).
4. Connect CH AUX probe to control wire of Injector.
5. Warm up the engine to normal operating temperature.

   Specification:  Refer to Signal Waveform & Data below.

   Fig 2: Display - Engine Idle Warm Up Screen

   Courtesy of KIA MOTORS AMERICA, INC.

   A: Fuel injection time - Approx. 1450us

   CH. A - Injector Max 64.5V

   CH. AUX - Injector Current MAX 9.21A

   Fig 3: Display - Injector Current Data Screen (2500RPM)

   Courtesy of KIA MOTORS AMERICA, INC.

   A: Fuel injection time - Approx. 900us

   CH. A - Injector Max 64.9V

   CH. AUX - Injector Current MAX 9.15A

   Fig 4: Display - Injector Current Data Screen (Acceleration)

   Courtesy of KIA MOTORS AMERICA, INC.

   CH. A - Injector Max 65.2V

   CH. AUX - Injector Current MAX 9.09A

   ■ Check Injector performance 

   1. Ignition "OFF"
   2. Disconnect Injector connector.
   3. Measure resistance between Pin No. 2 (High side) terminal and Pin No. 1 (Low side) terminal of the Injector. (Component Side)

      Specification:  Approx. 1.40 Ω [25°C (77°F)]

      Fig 5: Display - Injector Resistance Screen

      Courtesy of KIA MOTORS AMERICA, INC.

   ■ Confirm Part Inspection 

   1. Does the Injector operate properly? (Check variation)

      YES 

      • Go to "VERIFICATION OF VEHICLE REPAIR " procedure.

      NO 

      • Carefully re-do this troubleshooting guide steps.
      • If problem still occurs, replace Injector and then go to "SYSTEM INSPECTION " procedure.