Check for play (looseness) in the quadrant link. It is the piece that connects the throttle spool to the throttle arm. The ball ends can develop a lot of play and then the throttle arm does not go all the way to idle and trip the micro. You can also lubricate the throttle cable (as per the recall) and disassemble, clean, lubricate, and reassemble the throttle spool. Be very careful with the quadrant link. There are little pins in the ball ends just like the ones on the door struts and they MUST be removed before trying to remove the quadrant link. The ball ends are handed, ie, one is left-handed and one is right-handed. It is done this way so you can make a very precise adjustment without taking one of the ends off. You can also move the outer spring on the throttle spool to the next position to increase the tension. (Not recommended, tiring on long trips and better to find the reason things are tight). David Teitelbaum vin 10757 --- In dmcnews@xxxxxxxxxxxxxxx, "Matthew P. Olans" <mpolans@...> wrote: > > Hey everyone, > I need some help. Can't pass emissions. I'm running rich because > my idle is about 1400 RPM. My idle speed microswitch did not seem to be > working, so here's the catch: > > When I unbolt it from the car and press it, my car idles right at 770 RPM, > perfect. When I reinstall it, 1400 RPM. The throttle arm screw is adjusted > perfect and pushes the idle speed microswitch down when you let off the > pedal. Even if you push it by hand or with a screw driver, when it is > bolted to the car, high idle. When not bolted to the car and you push it, > perfect idle. I have even tried a new switch AND one working on another > car....same symptoms. > > WHY?!? This makes no sense to me. Anyone have any ideas on this one? > > Thanks in advance, > > Matt > VIN 16816 > The Arizona DeLorean Club > 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/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/dmcnews/join (Yahoo! ID required) <*> To change settings via email: mailto:dmcnews-digest@xxxxxxxxxxxxxxx mailto:dmcnews-fullfeatured@xxxxxxxxxxxxxxx <*> 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/