LEMON Manuals: Even more car manuals for everyone
Home >> Kia >> 2017 >> Sedona SX >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (2 Of 3) >> DTC P0270: Cylinder 4 Injector Circuit Low >> Component Inspection >> Check Injector performance

Check Injector performance

  1. Ignition "OFF".
  2. Connect VMI to 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 #4.
  5. Warm up the engine to normal operating temperature.

    Specification:  Refer to SIGNAL WAVEFORM & DATA below

    Fig 1: Screen Display - Engine Idle After Warm Up
    G12277015Courtesy of KIA MOTORS AMERICA, INC.
    1. Fuel injection time - Approx 1110us

    CH. A - Injector Max 48.8V

    CH. AUX - Injector Current MAX 11.7A

    Fig 2: Screen Display - Acceleration
    G12277016Courtesy of KIA MOTORS AMERICA, INC.

    fuel injection time - Approx. 2910us

    CH. A - Injector Max 49.3V

    CH. AUX - Injector Current MAX 11.8A

scientia non olet · About LEMON Manuals