Engine Masters (2015)

S8E20 A Study in O2 Sensors and AFR Readings

Standalone air/fuel ratio gauges have revolutionized the tuning process for carbureted engines, opening up new opportunities and challenges. We begin by evaluating five commercially available units, then delve into how factors such as gauge placement, air leaks, and even malfunctioning cylinders can influence your readings. These elements ultimately impact your tuning choices and can significantly affect your engine's power output.