carlos_hiraoka

I would like to connect a spare oxygen sensor, one that is not plugged to the ECU but directly to a O2 display like a Lambda Link for example .....

I would like to mount it were the stock O2 sensor is located on the STi ver 3/4/5/6. Or would be it better to install it further back to avoid the sensor from excessive heat ?

IIRC one of the best regarded narrow band sensors was the Bosch unit LSM11, part number 0 258 104 002, but does anyone know if the new MY01-02 Subaru 4 wire sensors are any good and if I can connect it to a Lambda Link ?
Usually the narrow band or stock oxygen sensors have 3 wires, one for the heater, one for signal (+) and one for signal (-) ..... so if I want to connect it I guess that I would have to constantly feed the heater ..... after all what some of us regard as narrow band sensors, are sometimes inadequately called "Wide Band Lambda Sensor" (http://www.motec.com.au/drawings/x03.pdf)

carlos_hiraoka

carlos_hiraoka

BTW I forgot that the purpose of the xtra sensor was to avoid having my wideband sensor all of time installed, and also the narrow band sensor should be useful for cruise conditions & off boost when EGT are low ..... but they can also be used as a safety measure just to tell if the engine is RICH or LEAN under WOT especially if they are correctly installed (ie avoiding excessive heat).

Thanx,

Carlos H.


[Edited by carlos_hiraoka - 10/11/2003 9:32:31 PM]