On my 2011 Kia Optima LX 2.4L with engine code P0456

Question

On my 2011 Kia Optima LX 2.4L what should I look for cause the check engine light stays on not gas cap and shows code P0456

Answer 1

P0456 Evaporative emission system - leak detected (very small leak)

Not the fuel cap, this is where either a scan tool with evap data would have to be used, there you can monitor the FTP (fuel tank pressure sensor) or a smoke machine In order to find the problem

Answer 2

P0456 KIA - EVAP Emission System Leak Detected Very Small Leak
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