Kia Optima camshaft position sensor fault code with difficulty locating sensor placement on Kia Optima

Submitted by Vehicle Owner · Jun 23, 2025
Published by RepairPal

Problem overview

Some Kia Optima owners report experiencing difficulties related to the camshaft position sensor, particularly when trying to locate its placement. In the 2006 Kia Optima with a 2.7-liter engine, the sensor is situated on top of the engine, specifically on the engine head cover. However, for the 2007 model with a 2.4-liter engine, the sensor's location may vary, and improper mounting can lead to engine oil leaks. Owners describe the camshaft position sensor as a round black plastic housing, about the size of a golf ball, attached to the engine with one bolt and a short wiring harness on the drive-side end. When replacing the sensor, it is essential to disconnect the negative battery cable and remove the sensor carefully. Additionally, some owners have found that replacing the sensor can resolve fault codes like P0340, which are associated with camshaft position sensor issues.

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