Review on LSU 4.9 Lambda Wideband O2 Oxygen Sensor Replacement - Replaces 17025, 0258017025 - Compatible with AEM 30-4110, 30-0300, 30-0310 - X Series AFR Inline Controller - UEGO Air and Fuel Ratio Wideband by Ryan Fuhrer

Description says it fits 30-4110 UEGO sensors. That is not true. The connector has a plastic part inside that prevents it from connecting to the UEGO wiring harness. All is not lost, however, as the plastic part can be cut off and then connect normally. At the same time, after installing and connecting the sensor, he does nothing, but constantly reads 14.5-14.7. I've never seen it go out of that range, even under engine braking when the gauge should be reading full lean (---). I would really like to replace the device that actually works. Edit: After a day of driving, the sensor seems to have woken up. It now works as it should, although it takes a little longer to heat up on first start compared to the replaced Bosch. It's as responsive as Bosch, though. Hope it lasts!