I've change the spark plug
Over the weekend I changed out the spark plugs since my car has 93k miles and I did not know when was the last time the plugs were change since I bought it with 90k miles. I noticed the few of the plugs were burnt on the housing. When I did the task changing out the plugs, I was cleaning the MAF with brake cleaner. As soon as I put everything back on. I started up my car and suddenly it was shaking. I thought I screwed up something. Then the engine check light came on then the multifunction message came on. So I took it to Autozone to have the codes pull and it was code P0302. He told me cylinder 2 misfire. I thought, how is that possible. So as soon as I got home, I pulled the cover and remove the spark from cylinder 2. It seem fine. Then i realized that my wire on the injector port for cylinder two was loose. So I had a heck of a time squeezing that spring to latch it back on to the port. So I started up and it ran silky smooth. I'm surprise how something can be overlooked that I wouldn't thought of it that affects the misfiring. Now I still have the engine check light. I wonder if the light will go off after a certain cycle or do I have to go get it reset?