okay so i was driving down the road and out of knowwere my car felt like it hit a wall. i had to put home luckly i was down the road. when i checked what was going on one og my coil packs was bad so i was running on 4 cyliners. i replaced all my spark plugs and got 3 new coil packs. the timing chain is still good i thought it broke. but my cars still running on 4 cylinders and and for some reason its not getting a spark. can it be my ignition module? if so thats the last thing i can replace that would be the cause. any help.