Po301 2003 kia optima

Question

More information on code po301 3003 kia optima 2.7

Answer 1

P0301 Misfire number 1 cylinder

When it comes to a misfire condition, that cylinder is not contributing, In order or it to contribute, there has to be adequate compression, adequate ignition spark, which is dependent on a good sparkplug, This engine has a coil pack so you can not swap the ignition coil a good sparkplug firing voltage indicator would be good to have , if not just take a close inspection of sparkplug condition> most of the misfire condition are ignition related, meaning the coil fails,

​ The condition of the sparkplug are good indication of the combustion chamber