Hyundai Kona: Ignition System / Troubleshooting

Troubleshooting

Symptom	Suspect Area	Remedy
Engine will not start or is hard to start (Cranks OK)	Ignition lock switch	Inspect ignition lock switch, or replace as required
	Ignition coil	Inspect ignition coil, or replace as required
	Spark plugs	Inspect spark plugs, or replace as required
	Ignition wiring disconnected or broken	Repair wiring, or replace as required
Rough idle or stalls	Ignition wiring	Repair wiring, or replace as required
Rough idle or stalls	Ignition coil	Inspect ignition coil, or replace as required
Engine hesitates/poor acceleration	Spark plugs and spark plug cables	Inspect spark plugs / cable, or replace as required
Engine hesitates/poor acceleration	Ignition wiring	Repair wiring, or replace as required
Poor mileage	Spark plugs and spark plug cables	Inspect spark plugs / cable, or replace as required

On-vehicle Inspection Inspect ignition coil assembly and Perform spark test 1. Check for DTCs. ...

Specification Item Specification Primary Coil Resistance (Ω) 0.56 ± 10% [20°C (68°F)] Pin 4 ...

Hyundai Kona (OS) 2018-2024 Service Manual: Repair procedures
Inspection • Wrap the protective tape on the tool to disassemble with the screwdriver or remover. • ...

Hyundai Kona (OS) 2018-2024 Service Manual: Alternator Repair procedures
Removal 1. Turn ignition switch OFF and disconnect the battery negative (-) battery. 2. Disconnect the alternator "B" terminal (A) after loosening the mounting nut. 3. Disconnect the alte ...