I have a 1998 Saturn SW1 with 120k miles and a 1.9 liter engine.
Problem #1: It idles very rough at intial start up with a little puff of black exhaust that comes out. It will eventually even out and idle normal, or if you give it some gas it will idle normally a little sooner.
If you shut it off and start it back up right away, it doesn't have a problem, but if you wait a while (subjective I know. Maybe 5-10 minutes or longer) it will happen again. Once you get past the initial rough idle the car runs great except for problem #2.
Problem #2: This really isn't a pressing issue since the car has always done this. But it at times idles very high. It will eventually idle back down to about 1200 rpm, that's probably as low as it ever goes, but at times will get up to 2000 or higher rpm. It seems to go a little higher since problem #1 started.
Any help would be appreciated.
Oh yeah. My temp guage is also not working. Could it be the dreaded ECTS problem that I've been reading about?
Thanks in advance.
have the same problem?
Monday, June 11th, 2007 AT 7:14 PM