List I can put a new spark plug in #1 cylinder and it will carbon up in 15 minutes at idle. All the others plugs are fine. I swapped injectors with another cylinder and the problem stays in #1. If left alone it fouls the plug and causes the unburned gas to get into the crankcase which dilutes the oil. I'm thinking that this points to a valve problem or fuel distributor, any suggestions ? Steve 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/