X-Series AFR Gauge, A wideb UEGO sensor controller accurately monitors Air\/Fuel ratios (AFR) during the tuning process to prevent a lean fuel mixture, which could lead to engine damage It has combined its single-channel wideb UEGO controller gauge display into one unit, uniting unsurpassed AFR accuracy control with an easy-to-read interface The Gauge-Type Wideb UEGO Controller features a digital LED display sweeping LED \
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