We tested popular wideband O₂ controllers against lab-grade equipment to see how accurate their lambda readings really are under real engine conditions.

If you build engines, tune cars, or even just like mashing your foot on the throttle with conviction, you’ve probably heard ...

I live in New Jersey, one of the states that mandates inspection for all vehicles newer than 1995. My daily driver, a Jeep Cherokee, happens to be a 1996 model year with an OBD-II sensor, meaning I ...

The Honda CRX, especially from the late ’80s and early ’90s, has earned a legendary reputation among car enthusiasts for its lightweight design, strong handling characteristics, and high-revving ...

The Nature Index 2025 Research Leaders — previously known as Annual Tables — reveal the leading institutions and countries/territories in the natural and health sciences, according to their output in ...

We may receive a commission on purchases made from links. Modern cars are designed to be more efficient and eco-friendly than ever. Automakers build vehicles with a wealth of advanced features to not ...

Fig. 1 The simulation of stress distribution in QEPAS: (a) standard QTF, (b) four-prong QTF. In 2002, Tittel et al. proposed a gas sensing technology named quartz-enhanced photoacoustic spectroscopy ...

O2 sensors and air-fuel ratio sensors are essential for controlling emissions and ensuring efficient engine operation. These sensors provide critical data to the ECU for optimizing air-fuel mixtures ...

As a vital component of a vehicle’s emissions control system, oxygen sensors play a crucial role in engine performance and fuel efficiency. But what’s the typical cost to replace a failed O2 sensor?