ENGINE 1.3L QUADRAJET (90 PS) 117 Lambda Sensor : The Quadrajet 90 PS BS4 engine is fitted with Lambda sensor before closed coupled catalytic converter. Component Details : The purpose of lambda Sensor is to maintain the NOx and PM particles. It strongly reduces the variations of NOx and PM emissions in the entire life of a car. Component Location : Operational Description : This sensor is having two porous platinum electrodes. The outer electrode surface is exposed to the exhaust gases and is coated in a porous ceramic with the inner-coated surface exposed to fresh air. This sensor produces a voltage when there is a difference in oxygen content between the two electrodes. This signal is then sent to the ECU, which adjusts the mixture accordingly. The voltage range is normally: 0.2 volts when there is a lean mixture 0.8 volts when there is a rich mixture. Connection Description : Lambda sensor K40 sends signals to pins 44, 45 and 47 of connector V of ECU while pin 46 supplies a reference earth. The coil is supplied by the line of fuse 15A and receives an earth signal from pin 12 of connector V of control unit ECU.
RkJQdWJsaXNoZXIy MTIwNTUz