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

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 ...

If you've been around the Mustang scene for a while, you've probably heard of Fuel Air Spark Technology (FAST), or at least the aftermarket engine management system from the same company. Several ...