2012 optima ck engin light on replaced battery ran fine no light back on and is loosing power

Asked by Dec 02, 2014 at 10:19 AM about the 2012 Kia Optima EX Turbo

Question type: Maintenance & Repair

1 Answer

145

When you disconnect a battery, it resets the OBDII monitor that triggers the Check Engine Light when there's a problem. As you continue to drive it when the problem happens enough times it will set an error code and turn the light back on.

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