Kia Optima Hybrid: Ignition System / Description and Operation

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual / Engine Electrical System / Ignition System / Description and Operation

Description

Ignition 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).

The engine operating conditions (speed, load, warm-up condition, etc.) are detected by the various sensors. Based on these sensor signals and the ignition timing data, signals to interrupt the primary current are sent to the ECM. The ignition coil is activated, and timing is controlled.

Ignition System

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Repair procedures

On-vehicle Inspection Spark Test 1. Disconnect the ignition coil connectors (A). When disconnecting the ignition coil connector, pull out the locking pin (A) and then pull out the connector ...

Other information:

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: Intake Air Temperature Sensor (IATS) Specifications

Specification Temperature [°C(°F)]Resistance (k?)-40(-40)40.93 ~ 48.35-20(-4)13.89 ~ 16.030(32)5.38 ~ 6.0910(50)3.48 ~ 3.9020(68)2.31 ~ 2.5740(104)1.08 ~ 1.2150(122)1.56 ~ 1.7460(140)0.54 ~ 0.6280(176)0.29 ~ 0.34 ...

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: Troubleshooting

Troubleshooting SymptionSuspect areaRemedyEngine misfire with abnormal internal lower engine noises.Worn crankshaft bearingsLoose or out of specification engine flywheelReplace the crankshaft and bearings as required.Repair or replace the flywheel as required.Worn piston rings(Oil consumption may or ...