Hyundai Sonata: Ignition System / Ignition Coil Description and Operation

Description
An ignition coil is an induction coil in an engine's ignition system which transforms the battery's low voltage to the high voltage needed to create an electric spark in the spark plugs to ignite the fuel. Coils have an internal resistor while others rely on a resistor wire or an external resistor to limit the current flowing into the coil from the battery 12 V supply.
Repair procedures
On-vehicle Inspection Inspect ignition coil assembly and Perform spark test 1. Check for DTCs.     • If a DTC is present, perform troubleshooting in accordance with the ...

Ignition Coil Specifications
Specification ItemSpecification Primary Coil Resistance (?)0.56 ± 10% [20°C (68°F)]Secondary Coil Resistance (k?)2.0 ± 15% [20°C (68°F)] ...

Other information:

Hyundai Sonata LF 2014-2019 Service Manual: Specifications
Specification Air Conditioner ltem Specification Theta 2.4 GDI Theta 2.0 T-GDI / Gamma 1.6 T-GDI CompressorType6SES14 Oil type & CapacityND8 (PAG) OIL 80 ± 10 cc (2.82 ± 0.35 oz.) Pulley typeDL pulley type (A1 - PD) Displacement140 cc Air pressure transducerPressure valuesVdd * (0.00 ...

Hyundai Sonata LF 2014-2019 Service Manual: Knock Sensor (KS) Description and Operation
Description Knocking is a phenomenon characterized by undesirable vibration and noise and can cause engine damage. Knock Sensor (KS) is installed on the cylinder block and senses engine knocking. When knocking occurs, the vibration from the cylinder block is applied as pressure to the piez ...

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