Anyone ever use one of these to tune a carb? Cant seem to find if its a wideband controller or not. Little suspect since its as cheap as it is (relatively).


http://www.summitracing.com/parts/EDL-6593/

4/28/2010 1:06:28 PM

does it only work within 12:1 and 15:1? that doesn't seem very wideband to me

4/28/2010 2:52:55 PM

It's a 3 wire narrowband sensor.



Narrowband sensors are only designed to tell you whether it is rich or lean of 14.7:1 . Trying to figure out an AFR from the 0-1V signal is not reliable, especially since the signal varies greatly with exhaust temperature. Most widebands used in aftermarket applications (chiefly the Bosch LSU family of sensors) have 5 wires and a more sophisticated control system.

4/30/2010 11:33:43 AM

Thanks, kinda what I figured.

4/30/2010 4:13:36 PM