Hyundai Kona: Engine Control System / Injector Troubleshooting

Signal Waveform
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 Specifications
Specification Item Specification Coil Resistance (Ω) 1.5 ± 0.075 [20°C (68°F)] ...

Injector Schematic diagrams
Circuit Diagram Harness Connector ...

Other information:

Hyundai Kona (OS) 2018-2024 Service Manual: 4WD ECU Repair procedures
Replacement 1. Prior to replacing the 4WD ECU, check the 4WD ECU's clutch learing with the GDS tool. (Refer to 4WD Control System - "Repair procedure") 2. Turn ignition switch OFF and disconnect the negative (- ...

Hyundai Kona (OS) 2018-2024 Service Manual: Repair procedures
Removal Front seat belt pretensioner (BTP) 1. Disconnect the battery negative cable, and wait for at least three minutes before beginning work. 2. Remove the seat belt lower anchor. (Refer to Body - "Front Seat Belt ...

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