Bosch LSU 4.9 Lamda Sensor


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The Bosch LSU 4.9 sensor is a 5 wire wide band Lambda sensor. It is used to control fuel and ignition systems to optimize a car’s performance in the areas of emissions and fuel economy. The Lambda sensor can be connected directly to any ECU with a Lambda upgrade enabled. This sensor is designed to measure the proportion of oxygen in exhaust gases of automotive engines (gasoline or Diesel).