I have been using the CJ125 lambda sensor interface chip on a few projects in the past decade, with LSU4.2 and LSU4.9 sensors. Now there is a new type of sensor around, the LSU-ADV, which is functionally similar to the older LSU sensors except the sensor is internally calibrated instead of using a calibration resistor in the connector. My question is how do I connect such a sensor to the CJ125 chip that has no calibration resistor connection?
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