300TE (124.090) L6-3.0L (103.983) (1989)
Oxygen Sensor: Description and Operation
Oxygen Sensor (Three-Wire Type)
Oxygen Sensor With Internal Heater
An oxygen (Lambda) sensor located in the exhaust system upstream of the catalytic converter is used to provide more precise control of air/fuel
mixtures. This system operates by measuring oxygen content in exhaust gases, as the amount of oxygen remaining in the exhaust gas is directly
proportional to the air/fuel ratio of mixtures entering the engine. The sensor, mounted in the exhaust stream, reacts to the oxygen remaining in the
exhaust gases and produces a variable voltage signal (0.4 - 1.0 vdc) depending upon the oxygen content.