I don't want to split hairs over this Bill as it's probably of little interest to most people on this list. HOWEVER You wrote: " all fuel metering devices (including carburetors) are unable to deliver a proper fuel/air mixture when unmetered air is sucked into the engine through a vacuum leak" This is quite simply wrong as most engines now use MAP/MAT sensors to calculate air density. I was careful to keep -my- terminology correct by saying "These engines do not suffer mixure problems resulting from vacuum leaks." You will get a high idle if the vacuum leak exceeds the idlespeed control system's ability to lower the air entering the engine. >But that is a moot point on this list -- the PRV is very susceptible >to vacuum leaks, which is what owners want to know about. Virtues of >2005 model vehicles (if any) won't help a DeLorean owner with >wandering idle or flat acceleration. > > Actually 1984 onward Renault engines, and the Eagle Premier engines you guys have (which -are- Renault lumps) are all MAP/MAT sensed. Feel free to go read up in the TEC3 or SDS manuals, and you'll learn far more than you expected on this subject - I certainly did! Martin 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/