October 30: LEMON manuals on a temporary server, it is slow and having issues, download the manuals you need! Later in November we will switch back to the fast server.

Oxygen Sensor

All models use an oxygen sensor mounted in the exhaust manifold. This sensor sends a low voltage signal to the MCU to indicate rich or lean mixture. When mixture is lean, the signal is less than 0.2 volts. When rich, the sensor voltage is slightly above 0.6 volts.

Fig 1: V8 MCU System Layout

Courtesy of FORD MOTOR CO.