A few months ago maybe over a year. I changed the Spark Plugs on my 1999 Honda Civic and the check engine light came on. The car was driving rough and when I stop on red light the car makes even a rougher sound. A few days later my car went back to normal and I turn off the check engine light by disconnecting the battery and reconnecting it. EARLIER TODAY I changed the Spark Plug Wire and I changed the Spark Plug and the check engine light came back on! I could drive the car, but when I push the brake to stop the car the engine shake and I could smell smoke a little. It does not drive smooth and the engine shakes more then before I changed the Spark Plug Wire and Spark Plug. Could anyone help me??