yep, over the pond we call the o2 sensor the lambda sensor.
my rover was chugging and coughing and trying to start, but it just wouldnt run, and it had a strange noise to it, hard to describe. kind of a pathetic noise if you know what i mean. suspected a blocckage so removed the sensor which allowed the exhaust gasses tto escape from the hole confirming my suspicions. because the age of the car meant i didnt need the cat by lay i bypassed it with a straight through pipe and the car was transformed.
