Ayup, I want to check the fuel mixture on each pot of my 996 so need a lambda sensor that will screw into the headers. The little blanking plugs looks to be a fine pitch M10-ish. Will one of the 4-pin sensor fitted to later models fit? They seem to be available on ebay for around £20, which does seem a bit cheap for what I assume is a wideband sensor (?). Any other recommendations for checking the mixure at the headers ? Cheers Pete
