Kia Sportage: Engine Control System / Injector Troubleshooting

The three waveforms below are taken from the #1 and #4 injectors. The top waveform is from the high side (feed side) of the #1 and #4 injectors, while the middle waveform is from the low side (ground side) of the #1 injector and the bottom waveform is from the low side of the #4 injector.

The middle waveform is the same as the top waveform because there is no ground for the circuit. With no current flowing in the circuit, the #1 injector is not energized and fuel does not flow.

The bottom waveform shows that ground is supplied and there is a voltage drop across the #4 injector. With current flowing in the circuit, the #4 injector is energized and fuel flows.

Injector Repair procedures

Inspection 1. Turn the ignition switch OFF. 2. Disconnect the injector connector. 3. Measure resistance b ...

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Specification Item Specification Coil Resistance (Ω) 22.0 - 26.0 [20°C(68°F)] ...

Other information:

Kia Sportage QL (2015-2019) Service Manual: Cluster Ionizer (DATC only) Repair procedures

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Inspection Battery Voltage and Status Check the battery voltage and status using the battery tester. Battery Terminal 1. Move back and forth to check that the battery terminals (A) are loose or corroded.If the terminals are corroded, clean them. ...