Kia Stinger CK: Ignition System / Spark Plug

Specifications
Specification

Item
Specification
Type
SILZKR8H9G
Gap
0.8 - 0.9 mm (0.0314 - 0.0354 in.)
Electrode Material
Iridium

Description and operation
Description

A spark plug is a device for delivering electric current from an ignition system to the combustion chamber of a spark-ignition engine to ignite the compressed fuel/air mixture therein by means of an electric spark, while containing combustion pressure within the engine. A spark plug has a metal threaded shell, electrically isolated from a central electrode by a porcelain insulator.

Repair procedures
Inspection
[On vehicle inspection]
1.

Accelerate the engine to about 3,000 rpm 3 times or more.

2.

Remove the spark plug.

3.

Check the spark plug visually.

If the electrode is dry, the spark plug is normal.

If the electrode is wet, check the damage and electrode gap as below.

[Component Inspection]
1.

Check the spark plug for any damage on its thread and insulator.

If there is damage, replace the spark plug.

2.

Check the electrode. Measure the insulation resistance with an ohmmeter.

If the resistance is less than the specified value, adjust the electrode gap.

Specification: 10 MΩ or more

3.

Check the spark plug electrode gap.

If the gap is greater than the maximum, replace the spark plug.

Specification: 0.8 - 0.9 mm (0.0314 - 0.0354 in.)

  

If adjusting the gap of a new spark plug, bend only the base of the ground electrode. Do not touch the tip.

Never attempt to adjust the gap on a used plug.

Cleaning

The combustion temporarily becomes unstable, due to the aged fuel and the carbon deposits accumulated on the spark plug(s) after long-term storage.

[1st Method]
1.

Start the engine and keep the engine running at idle for 2 minutes.

2.

Step on the accelerator pedal and hold it steady at 4500 rpm with the shift lever in N position to warm up  the engine until the temperature of the engine coolant reaches 80°C.

3.

Keep the engine running at 2500 - 3000 rpm in the N position for 15 minutes.

[2nd Method]
  

The 2nd method should be performed only if the 1st method fails (the misfire-related codes recur).

1.

Start the engine and keep the engine running at idle for 2 minutes.

2.

Drive the vehicle for over 20 minutes, keeping the engine speed above 3500 rpm.

  

If equipped with manual transaxle, shift the gear properly for keeping the engine speed above 3500 rpm.

Removal
1.

Remove the ignition coil.

(Refer to Ignition System - "Ignition Coil")

2.

Using a spark plug wrench, remove the spark plug (A).

Installation
1.

Install in the reverse order of removal.

Tightening torque:

14.7 - 24.5 N·m (1.5 - 2.5 kgf·m, 10.9 - 18.0 Ib·ft)

Other information:

Kia Stinger (CK) 2018-2023 Service Manual: Ambient Temperature Sensor

Description and operation Description Located in front of the condenser, the ambient temperature sensor detects the ambient air temperature. It is a negative type thermistor; resistance will increase with lower temperature, and decrease with higher temperature. The sensor output will be used for discharging temperature control, temperature regulation door control, blower motor level control, mix mode control and in-car humidity control.

Kia Stinger (CK) 2018-2023 Service Manual: Receiver-Drier

Repair procedures Replacement 1. Remove the condenser. 2. Remove the cap (B) from the bottom of the condenser using an L wrench (A). Tightening torque : 9.8 - 14.7 N·m (1.0 - 1.5 kgf·m, 7.2 - 10.8 lb·ft) 3. Remove the receiver-drier (A) from condenser using long nose pliers.

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