> Since this is a problem that he only has when the engine is warm > (when the oxygen sensor has reached 400 degrees or whatever), > couldn't this be an indication of a bad oxygen sensor failing to > regulate the mixture properly? Matt - Possible. Does anyone know how to test the oxygen sensor, and/or details on a cross-reference part? >> It is a fairly easy procedure to remove the throttle body. David - Yep, been there done that. Last I saw them (several months ago) I believe they were clean, but I also wasn't looking specifically at them. I'll dig back into it and see what I find. I didn't have time to tear into it yesterday but will get it done this week, perhaps tonight. Thanks again. -Ryan 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/