My '00 ZX3 overheated and is now running rough
Greetings all. I'm hoping I can get some answers from the experts here. I recently ran my '00 ZX3 with a leaking water outlet housing and it overheated and starting running a bit rough before I got it home. I replaced the water outlet housing and thermostat. That seems fine now, but it still sputters a bit and is lacking some power, and the check engine light is on. I pulled the plugs and there is some oil around 3 of them. I am going to try to replace the valve cover seal, but what other things should I be looking for? Is a new seal apt to fix the sputtering?
The engine is a Zetec
Thanks for taking the time to read!