Walker Products 250-24943 Oxygen Sensor by Walker

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Determines the oxygen content of the exhaust gas;Produces a voltage proportional to the amount of oxygen in the exhaust versus the air, <150 mV lean & >750 mV rich;The data is used to control the air-fuel mixture through PORT or TFI injectors and carburetors;Sensors are monitored or checked anywhere from 4 to 100 times per second;The air-fuel mixture is thus always moving from rich to lean averaging very close to stoichiometric (ideal) ratios
Walker Products 250-24943 Oxygen Sensor