Ignition System - 2.4L - Optima: Other Kia Optima III рестайлинг

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]

Scheme 36

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.

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

[2nd Method]

Scheme 37

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

Scheme 38

1. Remove the ignition coil. (Refer to «IGNITION COIL»(ref-675287-S22630381932014121000000) )
2. Using a spark plug wrench, remove the spark plug (A). NOTE: Be careful that no contaminates enter into spark plug holes.