Part # Bosch 4-wire O2 (Autronics)

[Eric Fahlgren]

Greg Hermann wrote:
> 1. I am not entirely sure whether you can get the Bosch LSM-11 for any less
> than the NTK sensor. Used to be quite the opposite, but I have not tracked
> the recent price changes.

I think I've heard that the UEGO supply is drying up.  Wasn't it
used for only one vehicular appliciation (early '90s Honda Civic
SX or something)?  The LSM-11 is becoming more widely used in
production vehicles, so probably is getting cheaper.   I'm checking
around for prices and I'll post the numbers back here.

> 2. The NTK UEGO sensor uses technology which is _FAR_ superior to the Bosch
> LSM-11. No if and or buts about that! The NTK is sensitive and quick enough
> to able to pick out a mis-fire on a 4 cyl engine at 4K rpm, for instance
> (on a scope trace).

Oh, I could argue that, I suppose.  What if our objective is not
30 ms response time, but lead resistance?  Then we could say that
the Bosch unit is far superior.

So, for the application being "discussed" :) in that other thread,
the LSM-11 is probably a better choice for the reasons I original
enumerated.  If you are interested in accurate AFR measurement on
an engine equipped with a standard lambda sensor, the use of an
LSM-11 in conjuction with a temperature compensating circuit will
produce equivalent results to those produced by an NTK unit, but
with far less hassle and cost.

-- 
Eric Fahlgren                            Mechanical Dynamics, Inc
efahl at adams.com                          Ann Arbor, Michigan, USA
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