FuelTech’s PowerFT line of ECUs (FT450, FT550, FT550LITE, and FT600) offers an impressive range of EFI controls. However, as with any computer, the ECU injection controls, and ultimately your tune, are only as good as the data collected from your engine. Your engine’s air/fuel ratio, or AFR, is an important data point provided by your oxygen sensor, also called an O2 sensor. In high performance applications, accurate AFR data can make the difference between winning and losing, which is why adding FuelTech’s NanoPRO O2 conditioner can be a game changer.