Hyundai Kona: 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 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 Owners Manual: Battery saver function
The purpose of this feature is to prevent the battery from being discharged. The system automatically turns off the position lamp when the driver turns the engine off and opens the driver-side door. With this feature, the position lamps will turn off automatically if the driver parks on the side ...

Hyundai Kona (OS) 2018-2024 Owners Manual: Accumulated Info display
This display shows the accumulated trip distance (1), the average fuel economy (2), and the total driving time (3). The information is accumulated starting from the last reset. To manually reset the information, press and hold the OK button when viewing the Accumulated driving info. The trip dist ...