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: Screen Display - Injector Disable (Cylinder 1 Actuation Test)

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   ■ 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: Screen Display - Engine Idle After Warm Up

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A: Fuel injection time - Approx. 1450μs

CH. A - Injector Max 64.5V

CH. AUX - Injector Current MAX 9.21A

Fig 3: Screen Display - Approx 2500 RPM

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A: Fuel injection time - Approx. 900μs

CH. A - Injector Max 64.9V

CH. AUX - Injector Current MAX 9.15A

Fig 4: Screen Display - At Acceleration

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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: Screen Display - Resistance Of Injector

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■ 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.