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Home >> Kia >> 2011 >> Optima LX, Automatic >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System Diagnosis (2 Of 3) - 2.4L >> DTC P0272: Cylinder 4-Injector Circuit Balance (Load Drop Is Detected) >> General Information >> General Description
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General Information: General Description

PCM monitors Air/Fuel ratio of the each cylinder based on O2 sensor signal.

PCM performs this monitoring for 30 sec with a part load and constant speed, and corrects fuel quantity of each cylinder.

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