Review on 🚙 A27678X O2 Sensor Set for Jeep Cherokee Grand Cherokee Wrangler 4.0L - Upstream and Downstream, Sensor 1 and Sensor 2 - 234-4076, 234-4078 by Bryan Reynolds

The bottom sensor lasted exactly 23 miles before code P0138 appeared. I checked the wires, the voltage at the sensor is normal. So this is a POS sensor. Will try to see if a replacement can be sent. I don't want to pull both sensors. And I can't pull them out and send them back and wait for new ones because the rest were in the trash. I got them because of the high ratings this piece got. I'll update this once the replacements are installed