Hyundai Ioniq: Ignition System / Repair procedures

Hyundai Ioniq (AE) 2017-2025 Service Manual / Engine Electrical System / Ignition System / Repair procedures

On-vehicle Inspection

Spark test

Check for DTCs.

•	If a DTC is present, perform troubleshooting in accordance with the procedure for that DTC. (Refer to DTC guide)

Check if sparks occur.

(1)	Remove the engine cover.

(2)	Remove the ignition coils.

(3)	Using a spark plug wrench, remove the spark plugs.

(4)	Disconnect the 4 injector connectors.

(5)	Ground the spark plug to the engine.

(6)

Check if sparks occur at each spark plug while engine is being cranked.

•	Do not crank the engine for more then 5 seonds.

3.	If sparks do not occur, perform the following test.

4.	Using a spark plug wrench, install spark plugs.

5.	Install the ignition coils.

6.	Install the cylinder head center cover and the engine cover.

Description and operation

DescriptionIgnition timing is controlled by the electronic control ignition timing system. The standard reference ignition timing data for the engine operating conditions are preprogrammed in the memory of the ECM (Engine Control Module)...

Crankcase Emission Control System

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