My civic EG6 D16Z6 is having a wierd problem. When i slam on the gas, it gives a "blup,blup,blup" nose and then it starts to pick up speed slowly, sometimes it dies. i changed the spark plug and it changed a little, but it still bogs when i slap on the gas. can anyone help me whats wrong? could it be electrical such as dist., spark wires, plugs, rotors, coil. talking about the coil, where is it anyways? anything will help. thanks.