The KE-Jetronic has a narrow band O2 sensor and a simple ECU that controls a frequency valve that adjusts the control pressure in the fuel distributor to keep the AFR at 14.7:1. By replacing the 02 sensor with LC-1 from Innovate Motorsports, you are able to tune the engine for more power by adjusting what the ECU thinks is the current AFR ratio. [/b]
Would replacing the O2 sensor be IT-legal?