Digitul

Hey guys,
Ive had the SES light on for some time now (3 weeks). Today I changed the spark plugs and the light turned off. However, after driving the car to a friends house the light began to flash then it turns off. A few street lights later, it starts flashing again then shortly after, turns off. I understand that this is an indication of a misfire being detected. Any ideas on what could be causing these misfires? Could it be an ignition coil issue? Ive attempted a search on this topic but have come up empty. Let me know if you guys have any advice on how to fix this.
Thanks!

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