Is the idle speed motor buzzing ? Does it move in both directions ? Do you have a bad connector or wiring harness ? This would cause the problem you describe. The idle motor can turn only in one direction, opens up completely and stays open -> max idle ! > > Ok everyone - I have a question. I have eliminated > the idle control motor due to my problem I'm going to > describe here. With my idle control motor > disconnected, the car idles at 900 rpm beautifully > (the ecu is hooked up). If I hook up the idle control > motor (keep in mind the ecu has been hooked up the > whole time), my rpms jump from 900 to almost 2500 > rpms. I acquired a spare idle control motor and tried > that one (one off another owner's car that I KNEW > worked), and my car jumped in rpms again. So then I > obtained a spare idle speed ecu that I knew worked - > hooked it up - my car's idle jumped again. So I've > tested both new ecu's and motor's with no success. We > have rebuilt the whole engine from the block up, so I > know all vacuum hoses are intact, all O-rings are new > and replaced, the intake manifold is on propery. ...cut... -- "Sie haben neue Mails!" - Die GMX Toolbar informiert Sie beim Surfen! Jetzt aktivieren unter http://www.gmx.net/info To address comments privately to the moderating team, please address: moderators@xxxxxxxxxxx For more info on the list, tech articles, cars for sale see www.dmcnews.com To search the archives or view files, log in at http://groups.yahoo.com/group/dmcnews Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/dmcnews/ <*> To unsubscribe from this group, send an email to: dmcnews-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/