Bosch Man,
Stu......its a diagnostic tool
This sensor is no more a diagnostic based tool than a 52mm boost gauge. Its there to check that everything is ok. A "diagnostic" AFR gauge would be able to inform you of a missfire condition....
Bosch Man,
as you recommend closer to the turbo the better and this means the shorter the life of sensor....
Garbage Phil.
Why do the manufacturers fit em there then?
The heat is a good thing in many ways, too cool and they clog up, thats why they have heaters built in to them, to keep em pretty warm when your tootling about. massive EGT's do have an affect, but show me a road car that sustains these temperatures regularly Phil?
The ultimate position is offset 30 degrees from center about 2 feet from the turbine, but it just so happens a cossie couldnt take one there anyway...roflol Most other cars can though
I do know a little about the lifespan of a wideband unit Phil, i pay real stupid money for my sensors due to having the full cal sheet available to type into my ECM headunit like this:
So i make it my business to know how to extend their life and retain accuracy
