Peter Krauss

Thanks for your responses guys...it's already in the bin (trash).

Hi all, This is my first post on here and I'm hoping the more knowledgeable can help. I have a new for me V11 Cafe Sport 2004 which has been running very rich. The sparkplugs were very black. I changed the plugs & tested the ETS which seemed to be working ok. While looking at the Lambda sensor wiring, I came upon this little plastic box which is connected between the Lambda sensor and the ECU. It's about 1"x2" and has a green LED. There are no labels or writing on it. What is this thing? Maybe a signal conditioner? Thanks, Pete in Sydney, Australia