1996 Z3 1.9 rough cold start and missing

invalid@example.com (Wes778), Wes778
Sun, 12 Jan 2025 18:42:16 +0000

I just replaced my thermostat about a three weeks ago. It ran fine for about a week and a half, and now I’m starting to have a little bit of a rough start and misfiring when cold. It goes away after 30-45 seconds then is fine. It definitely sounds like it’s misfiring, but I have no check engine light or codes. I just put a battery in it a couple of days ago. And I did close and wires in the summertime less than 1000 miles ago. I saw somewhere in a form people say to change the oil. that...

1996 Z3 1.9 rough cold start and missing