As performance enthusiasts and racers work with more sophisticated tuning tools—especially those designed for EFI engines—there's a growing debate on whether to use air-fuel ratio or Lambda in the ...

The Engine Management Light has illuminated on my early 2000 Volvo V70 petrol estate. My local garage, which I think is reliable, says it is the heating element that brings the Lambda sensor up to ...

I recently had an engine fault light come on. I took the car to my local garage and they ran a diagnostic - it came up with a rear lambda sensor fault. They cleared the code and told me that it would ...