I have a 2009 Chevy aveo5 hatchback, the one made in Canada. It is idling super rough has no power on acceleration/hesitates. Sometimes sputters and dies. Checked it on the computer and got a code for a misfire on 1 and bank 1 sensor 1 o2 sensor. I have changed the coil pack, plugs, o2 sensor, air filter and the problem still exists! So frustrated!! Can anyone help me diagnose the issue? There is only 112000 Kim’s on the car, I’m lost and doing the work myself. I really need some help and advice!