Bosch wider band sensors are used on some current
M7 engine management systems. Not suitable for
DIY installation as they are very sensitive to cable
length and more. As Tom point out they read more
on the lean side.
We got one "research use" full-wide-band sensor
at work from Bosch a few weeks ago and I think the
invoice was US$600.- for this sensor alone. They
can be installed on fuel injection cars for those who
have access to the source-code.
Thread & pitch is usually 18x1.5 mm. Nissan and
some other cars have 14x1.5 mm.
Thomas
Thomas Walter wrote:
> Oxygen sensor's:
>
> Good Information posted about them - glad to see it.
>
> The wide band sensors are newer developments, but
> are to measure the degree of running lean. Honda
> is a big user of those sensors, so the price has
> dropped quite a bit. Not sure of current pricing,
> but they were down around $200 for replacement
> parts, not bad for a sensor that once cost about
> $800 to replace! These sensors measure the lean
> region from 14:1 to 20:1.
>
> There are some "research use" Wide band Oxygen sensors
> that run about $10K (1996 price) to provide a full
> range of rich to lean (8:1 to something like 16:1)
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