Stephen, I had a similar problem and I just figured it out last night! My Idle Speed Microswitch was bad! I was able to pop the top off (well, ok break it open) and I found out that the contacts were EXTREMELY corroded... I was able to clean them and put the switch back together (with the help of some super glue!) So I would recomend checking your switch before buying a new ECU. By the way the wiring diagram shows a capacitor in the wiring to the microswitch, does anyone know where it is?? It seems that to be most effective it should be near the switch, but I didn't see it anywhere... My guess is the cap has failed and I was getting a lot of arching inside the switch whiuch caused the corrosion... I don't want the same thing to happen again! Also could someone give me the type and value of the cap? Thanks, Dan 6623 ----- Original Message ----- From: DMC Joe To: dmcnews@xxxxxxxxxxx Sent: Monday, January 24, 2000 2:16 AM Subject: [DML] Re: Fast idle Your idle speed ECU is probably defective. DMC Joe / De Lorean Services / <dmcjoe@xxxx> Web Site: <http://www.deloreanservices.com> ----- Original Message ----- From: Stephen Sunkel <sunkel@xxxx> To: DeLorean Egroup <dmcnews@xxxxxxxxxxx> Sent: Sunday, January 23, 2000 6:51 PM Subject: [DML] Fast idle My D has been having a fast idle problem that I have not been able to track down. When it is cold it idles fine, around 900 RPM, once it warms up it wants to idle around 1900 RPM! The throttle cable is not sticking and the throttle is closing all the way. What is the deal? Could it be the idle control computer, or thermal sensors? Any help would be appreciated. Stephen 3525