how to check engine light

Hi, my name is Devin. I am an auto repair expert with the Car Genius team here at RepairPal. So sorry to hear you're having trouble with your vehicle. To diagnose the check engine light and a possible cylinder misfire, you'll want to start by using an OBD-II scanner. Plug the scanner into the port under the dash, turn on the ignition, and read the codes. These codes will tell you what's causing the light to come on, and if there's a misfire, it'll likely indicate which cylinder is affected. Once you have the code, you'll better understand what needs attention, whether it's a spark plug, coil pack, fuel injector, or something else. If you need more advice, have any other questions about your vehicle, or would like to get connected to a RepairPal Certified shop near you, we have you covered. Give us a call at 877-913-1554, and we will happily help you out!