Product Introduction The oxygen sensor of your car measures the amount of oxygen in the exhaust gasses that exit the engine. The oxygen sensor is located in the car’s exhaust system, which allows the fuel injection and engine timing to work efficiently. This function is part of the vehicle’s emission control. Features 1.Dual Insulated Protective Cover Prevents premature zirconium sensor wear 2.Laser welded sensor body to keep out contaminants 3.Internal Ceramic Insulation for optimal sensor performance. 4.Sealed wire leads prevent moisture interference with electronic signal Fits 2000-2002 Toyota Echo 1.5L FAQ about Oxygen Sensor .
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