Re: Oxy Sensor Question

[Huw Powell <human@nh.ultranet.com>]

-- [ From: Huw Powell * EMC.Ver #3.1a ] --

>Can the "Three wire, heated Ox sensor" be replaced with the "much less
costly" single wire sensor, and still function as should be expected?

Wow, I actually am answering a question from Mike Tipton... There's a switch
!

Mike, I assume that 3 wire OXS is quite a ways downwind of the manifold,
unlike say the stock 82 coupe where it is mounted directly in the manifold. 
The OXS needs to be at about 600 deg F to function properly - the heater
accomplishes this.  I ran the OXS on my coupe after the engine replacement,
with the 85 4kq manifold/downpipe without the heater attached for a few
weeks.  It was mounted just ahead of the cat in a welded in fitting.  The
car ran much smoother and idled higher after I finally hooked up the heater.
 I think it was getting warm enough but was getting there much slower than
if it were in the manifold or heated electrically.

I suggest you stay with the heated unit.  Someone on this list had a source
for them under $100, darned if I can remember who...?  Somehow my neighbor
managed to sell me one for about $75.00.

hth

Huw Powell
HUMAN Speakers

Sufficiently advanced magic is indistinguishable from science....

http://www.thebook.com/human-speakers