So this has been an issue since I bought this car a few month back, but it seems to be even worse with the cold weather. My starion (87) runs horrible on cold start up. It's not really drivable at all, and has a very difficult time revving at all. The narrow band (I know, lame, but that's what the car had in it when I got it) starts out all the way lean, then slowly makes its way to all the way rich. It stays pegged on rich for 5 or 10 minutes until the car goes into closed loop, at which time the idling smooths out, it will rev, and it appears to be running fine. If I start the car up when it is already warmed up, then it runs fine, and if it is halfway warmed up, it runs rough (but not as bad) for a shorter period of time. I changed the cts a little while back, and am not sure what to look towards next. Any insights would be very helpful! Thanks.