This AEM product actually monitors Air / Fuel ratios (AFR) during the tuning process to prevent a lean fuel mixture, which could lead to engine damage. The AEM’s Wideband UEGO Sensor Controller is available in single- and dual-channel models. This unit has a very low current draw, and features both 0-5v calibrated output and 0-1v calibrated output to mimic the factory narrow band sensor, eliminating the chance of a factory computer issuing a trouble code.
