I just replaced my O2 sensor this afternoon, I was going to ask the same thing... FYI, there is nothing more fun then trying to undo a thing that's had 20 years to rust in place. I simply can't wait to start on the Coolant Hoses :) -Gary Weaver II > > From: id <ionicdesign@xxxx> > Date: 2003/04/11 Fri PM 08:48:49 EDT > To: dmcnews@xxxxxxxxxxxxxxx > Subject: [DML] Lambda > > How do you reset the Lambda counter? > > Mark > 6683