Is there a difference between an automatic’s ecu and a manuals?
If it’s the O2’s, it’d be the fronts.
Many, many, things can cause a misfire, the O2’s just happen to fall into that “list.” It might fix your problem but probably not since they worked previously. If you want to change them it’s not hard if you have an O2 socket.
I didn’t check the size but this is the kind you’re looking. https://www.walmart.com/ip/Wilmar-W1...&wl13=&veh=sem