2009 Kia Rio Q&A
2009 Kia Rio Question: When the car is on idol or if its running the engine seems to be missing.
scan test for codes and go from there - goodguy
agree scan codes and post you most likely have misfire data in ECM - globalhelper
Coil on plug misfire, as stated scan test needed to determine which cylinder is the problem. - pushrod
Check your coil packs. I have a 2007 kia. No problems until this summer. I have replaced 4 coil packs in the past few months. First signs are check engine light comes on and the car begins to start missing. Excerlation decreases... not a happy kia owner at present! - pgwhitis