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Hi Everyone-

New to the Forum. Looking for some advice on my 2013 Optima SXL. While driving or in drive and idling, the Immobilizer Indicator Light and Malfunction Indicator Lamp will flash quickly then disappear. At the same time the RPMs will drop a bit then return to normal. They only drop about 100-250 RPMs. This is occurring my 2013 Optima SXL. I brought the car to a Kia Dealer and they said they could not find anything wrong. I have seen the issue occur while in ECO mode and not in ECO mode. Any guidance on what may be causing this would be extremely helpful and much appreciated. Thanks! - Scott

Speedometer Car Odometer Trip computer Gauge
 

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Places like autozone and such will scan for free, you can get your own inexpensive scanner too.
yeah i know its China made but they work:
 

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2017 Optima EX
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Just buy an OBD code reader so when it pops up you can read it. Amazon Ancil D310 works good in my 2017 EX.
cheap $35 just plug it in turn It on.
 
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