The following is the 2000-2012 Kia Optima wiring diagram, Kia Optima IAT (Intake Air Temperature) Sensor Location and the Kia Optima MAF (Mass Air Flow) Sensor Location, also included is a pinout of the sensor. You are likely installing a performance chip or a cold air intake kit for increased HP (Horsepower). You will want to be sure to disconnect the car battery before adding performance products.
Here is the Kia Optima Iat sensor diagram:
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I have compiled an extensive list of IAT Sensor and MAF Sensor Locations for all current makes and models of all domestic and popular foreign vehicle manfacures. This includes Ford, Chevrolet, Dodge, Chrysler, Jeep, GMC, Lincoln, Honda, Toyota, Nissan, Acura, Lexus, Hyundai, Subaru, etc...
The information on the following pages is not in any specific order but there is a wealth of information if you are looking to locate your iat sensor, aka: intake air temperature sensor or you are looking for your MAF, aka:Mass Air Flow Sensor, I also have pinouts showing what part of the maf sensor contains the designated iat wiring. It's all here!
Enjoy the database..