At the cost of an O2 sensor ($15-$20), it is well worth changing it just to be sure. It may not solve your problem(s) but every problem is worse when you are chasing or affected by multiple issues. Also, borrow the free tool kit when you can as it will make it easier. I recommend not cutting the old wire until you are sure it will come out and then cut it at the old sensor since an extra inch or two will be a BIG help. Nick ------------------------------------ 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://info.yahoo.com/legal/us/yahoo/utos/terms/