A few months ago, i changed the spark plugs on my g35 coupe. After the replacement, somewhere around the right side of the engine is constantly making ticking sound when idling. Some guys told me that it's from the wires that r attached to the coil packs. Until now, i haven't had any different feelings since it made the sound. Are the wires that is the problem? Can anyone tell me or have DIY on how to change coilpack wires? I've searched but couldn't find one.

plz help. i wanna get rid of this sound.