Emission Control Systems

Lambda/Oxygen Sensors • A Narrow Band Lambda Sensor is a sensor that measures engine exhaust emissions to ascertain how efficiently the air/fuel mixture is burning. This particular sensor only reads three mixture formations Rich, λ0 or Lean.

• 1-4 Wire Sensor

• Operating temp is +300 ℃

• Signal changes abruptly.

• A rich mixture surges voltage to approx. 0.9 volts .

• A lean mixture drops voltage down to 0.1 volts.