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) 2018-2026 Service Manual: Front Hub / Knuckle / Tone Wheel Repair procedures
Removal 1. Loosen the wheel nuts slightly. Raise the vehicle, and make sure it is securely supported. 2. Remove the front wheel and tire (A) from the front hub. Tightening torque : 107.9 - 12 ...

Hyundai Kona (OS) 2018-2026 Owners Manual: To turn Cruise Control off
Press the (CRUISE) button (the (CRUISE) indicator light will go off). Press the button (The cruise indicator light will go off.). (if equipped with Speed Limit Control) - With the Cruise Control on, pressing the button once will turn Off the Cruise Control and turn on the Speed Limit Control ...