What is your question?
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What is your question?
Car is running rough check engine light flashing When turned off check engine light on solid car runs better but when drive a little it starts flashing and car runs rough again?
What makes this problem better or worse?
Haven’t warmed it up yet it running so rough and it is cold here in the 30s
How long has your 2007 Hyundai Sonata had this problem?
Just started less than a day
1 Reply
Flashing check engine light is indicative of engine misfiring - which can lead to more expensive catalytic converter damage if not 'soon' corrected! Highly recommend visiting local auto repair facility to have a full scan test performed and misfire problem resolved.