Engine chug and vibration accompanied by Service Engine Soon blinking.

SOURCE: i have a nissan pathfinder

I've had this issue and had the engine codes checked. It was a coil wire in one of the cylinders (nissan has ignition coils instead of the old plug wires) and this will fix the misfire if in fact that is what it is. To tell if you are misfiring, does the car idle smoothly? Does it misfire and kind of shake while driving where only pushing the gas peddel takes the problem away? Does the car feel like it may stall? Have it checked as if you don't and it continues it could burn out the catalytic converters and those are expensive on the nissan as there are multiples.