A reliable measurement of the AFR is vital for the tuner to be able to tune the engine and be sure that his changes to the fueling are correct. For this purpose we recommend one of the readily ...

While oxygen sensors have been an indelible part of automotive technology for decades, the technology continues to evolve. In general, an O2 sensor relies on the fact that when the zirconium dioxide ...

Thought’s not the only maker of planar oxygen sensors– virtually every major supplier manufactures them for their OE customers–the announcement by Delphi that it would be offering planar oxygen ...

Wideband O2 sensors play a pivotal role in the realm of automotive tuning, providing precise measurements of the air-fuel ratio necessary for optimizing engine performance. Unlike their narrowband ...

As ever, I am fighting a marginally winning battle against my 1991 Mazda MX-5, and this is the story of how I came to install a wideband oxygen sensor in my Japanese thoroughbred. It came about as ...

When we got the invitation to tour Bosch's oxygen sensor plant in Anderson, South Carolina, it had all the allure of eating a sand sandwich. Let's face it, oxygen sensors aren't the most glamorous ...

The days of you unscrewing a couple of spark plugs to track your engine's air/fuel ratios are long gone. Today you've got access to all sorts of fancy electronics, of which almost every single one of ...