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Engine misfires

3K views 1 reply 2 participants last post by  boneyardwurm 
#1 ·
My niece bought a 2014 spark over a year ago, she's brought it to me for several minor problems that I took care of. Now it had a p0301 code and p219a code. I changed spark plugs, cleaned mass air flow sensor,(which looked pristine) and made sure I installed the coil packs in different cylinders. Now it is throwing a p0300 code which leads me to believe it is a coil pack, I'm waiting to see if it narrows the code down to one cylinder. Has anyone else had this problem? And what corrected it
 
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