Ford FoMoCo Hot-Wire Intake Air Flow Meter BR31-12B579-AA LR019830

Ford FoMoCo air flow meter BR31-12B579-AA (OEM LR019830) installed between intake pipe and throttle body; hot-wire design accurately measures intake air and transmits to ECU to optimize air-fuel ratio and timing. Fits Ford, Land Rover and other 2.0L-3.0L diesel or gasoline engines such as Focus, Mondeo, Range Rover Evoque. Replacement difficulty: medium; labor 30-45 minutes; avoid touching the hot wire. If idle is unstable or power drops, inspect this sensor.