Kia Optima Hybrid: Engine Control System / Injector Description and Operation

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual / Engine Control/Fuel System / Engine Control System / Injector Description and Operation

Description

Based on information from various sensors, the ECM can calculate the fuel amount to be injected. The fuel injector is a solenoid-operated valve and the fuel injection amount is controlled by length of injection time. The ECM controls each injector by grounding the control circuit. When the ECM energizes the injector by grounding the control circuit, the circuit voltage should be low (theoretically 0V) and the fuel is injected. When the ECM de-energizes the injector by opening control circuit, the fuel injector is closed and circuit voltage should momentarily peak.

Fuel Tank Pressure Sensor (FTPS) Repair procedures

Inspection 1. Connect the GDS on the Data Link Connector (DLC). 2. Measure the output voltage of the FTPS. Pressure [kPa (kgf/cm?, in H2O)Output Voltage (V)-6.67 (-0.068, -26.8)0.502.5+6.67 (0.068, 26.8)4.5 ...

Injector Specifications

Specification ItemSpecificationCoil Resistance (?)13.8 ~ 15.2 [20°C(68°F)] ...

Other information:

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

Troubleshooting SymptomsPossible CausesRemedyCoolant leakage • From the bleed hole of the water pump Visually check • Check leaks after about ten-minute warming up. • If coolant still leaks, replace a water pump. • If leakage stops, reuse the water pump (Do not replace the pump with a new one). ...

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: Seat Track Position Sensor (STPS) Repair procedures

Removal 1. Disconnect the battery negative cable, and wait for at least three minutes before beginning work. 2. Remove the front seat assembly. (Refer to BD group) 3. Loosen the two STPS screws, then remove the STPS after disconnecting the STPS connector. Installation Be sure to install ...