I am losing power while driving

I just had my car scanned. Code reading multiple misfire, faulty ignition coil. I replace the ignition coil, all plugs, all wires and the crankshaft sensor. I started the car and still have the problem. I scanned the car again and got the same reading. While driving I seem to lose power. And it seems to take longer to shift gears. I also smell burning rubber when I stop.