O2 Sensor

[Gary Derian]

An O2 sensor in the collector wouldn't read the average, it would read lean
until the leanest cylinder became rich.  Which is what you need in order to
make the reducing part of the cat work.  Then add air downstream to oxidize.

Gary Derian <gderian at oh.verio.com>


> Unless running one per cylinder, I wouldn't see the need to do that.  Most
> applications seem to average a min of 9", and several go to like 4'.  I'd
> personally go farther, and use a heated one.  Mostly do to the fact there
> ain't no temperature compensation, so why put it where it is most
> restrictive.  Also, would rather use a good average reading, rather than
> favoring one or two.
> Grumpy