How to Replace the Crankshaft Position Sensor in a Kia Optima

Written by jack hathcoat
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How to Replace the Crankshaft Position Sensor in a Kia Optima
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In 2001, Kia introduced the Optima, a car with good value, impressive performance, lots of features and a strong warranty. The crankshaft sensor, represented by computer failure code P0335, is one of the most important components on the car. The Kia sensor detects slots on a target wheel that is attached to the crankshaft. There are 58 slots on the wheel and two missing slots. When the sensor recognises the missing slots, the computer knows the position of the crankshaft and is able to energise fuel and spark signals.

Skill level:
Moderately Easy

Things you need

  • 3/8-inch socket set
  • Mineral oil

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  1. 1

    Raise the bonnet of the car and locate the crankshaft sensor. It is at the lower right of the exhaust manifold. The sensor is installed in the transaxle housing that is bolted to the engine.

  2. 2

    Remove the single bolt holding the crankshaft sensor in place. Twist the sensor back and forth to unseat the O-ring seal. Pull the sensor out and unplug the wiring connector.

  3. 3

    Lubricate the O-ring of the new sensor with mineral oil. This will aid in a smooth installation of the new sensor. Push the sensor into the location until it seats. Turn the mounting tab on the sensor until the mounting holes line up. Install the bolt. Snug the bolt, being sure not to overtighten and strip the threads in the aluminium transaxle housing. Plug the sensor connector into the engine harness connector. Start the engine.

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