Mike, I would watch the WUR as it converts it's self to a control pressure regulator. This controls the plunger in the fuel distributor to rise up and down allowing more or less fuel to go to the injectors. Vacuum leaks are generally steady. I have a CIS fuel tester you can use by charging it to you credit card and then full credit up on return. John Hervey\ www.deloreanautoparts.com -----Original Message----- From: dmcnews@xxxxxxxxxxxxxxx [mailto:dmcnews@xxxxxxxxxxxxxxx] On Behalf Of Mike French Sent: Saturday, April 17, 2010 1:35 PM To: dmcnews@xxxxxxxxxxxxxxx Subject: [DML] Warm Up Gone Wild In the interest of keeping a close watch on the car, I've noticed that the warm up has started to go wild. It used to warm up steadily between 750 and 1000rpms. Then settled at just under 1000 after two or three minutes. Now, it cold starts and begins idling wild, dipping into 500rpms and jumping up close to 1500 while warming up. This also happens on a warm start and the only way to get the car to settle down to normal steady idle is to press the accelerator and run it for a few seconds. I always maintain a full charge on the battery and the car is always garaged. Want to deal with this before it gets worse. The car has 5,500 miles on it. I replaced the alternator at 4,000 miles with a D110 due to a bad Motorola original. The alternator has not given me any issues. Any help is appreciated. Thanks, Mike #6239 ------------------------------------ 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/dmcnewsYahoo! 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: dmcnews-digest@xxxxxxxxxxxxxxx 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/