Im pretty sure this means cyclinder no. 8 misfire. I changed the spark plug and the coil. but i still get this trouble code. Can anyone please give me some input on what else i should try? thanks. Im hoping its not the cyclinder itself. Also about 2 weeks ago i changed the oil and filter then the other day i checked it and it was almost bone dry. i dont think there is a leak theres no spots on my driveway.