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 Derek Helvie

This sensor works well but technically it is not a DIRECT replacement for the broadband AEM 30-0300. Inside the connector is a small plastic notch that needs to be broken open in order for the connector to be inserted. It also only displays a resolution of 0.1 AFR instead of 0.01 AFR like the meter that came with my meter. Not sure why that is, but AEM charges $120 for their "Bosch LSU 4.9 sensor" and my setup software only picked up a 0.1 resolution anyway, it just sucks, a dead one Having lead on my sensor not lighting up Numbers are not centered.