Which WB O2 sensor is OK?

[efi_student]

It's a Supra owner's group.  Lots of kids, a few with some pretty good
ideas, not nearly the expertise here.  That's what brought me here, no
one on that list was willing to reveal anything about the ECM.  Either
they don't know (mostly), or they have put too much effort into it, and
plan to make money from it.  I had hoped that at some point, someone
would crack the OEM ECM on the Supra, but it just isn't happening except
one guy in Canada, but he's not a programmer, he's just learned how to
manipulate the maps, I'd like to know more than just remapping.  I've
figured I need to learn more to understand the algorithms, and as Bruce
said, it's better to learn from something that is already hacked (a
known) than to try to invent from a blank sheet.  So that's why I'm
here.  I am also a full disclosure type unless I have been asked to keep
something secret, I work in Information Security and specialize in
networking.  I follow a number of security related subjects too, and I
have a bit of the hacker mentality.  It helps me do what I do for a
living, and I find the hacker mentality to be much the same as the guy
who wants to get more out of his machine.  Let's see what happens when I
do this...

Lance

-----Original Message-----
From: owner-diy_efi at diy-efi.org [mailto:owner-diy_efi at diy-efi.org] On
Behalf Of Steve.Flanagan at VerizonWireless.com
Sent: Tuesday, December 11, 2001 8:58 AM
To: diy_efi at diy-efi.org
Subject: RE: Which WB O2 sensor is OK?


What is the other list, would be curious what they discuss?

-----Original Message-----
From: efi_student [mailto:efi.student at sbcglobal.net]
Sent: Monday, December 10, 2001 7:27 PM
To: diy_efi at diy-efi.org
Subject: RE: Which WB O2 sensor is OK?


This is correct.  I just did a search through a Honda parts site, and
the 49 state model is completely different and MUCH more expensive. Not
just the sensor, but the whole exhaust set up.  The NB sensor is cheap,
that is what you are seeing for under $100.  I also have some parts
scouts looking for a better price than www.partsbin.com and so far, even
with an enticement of a purchase of 10 or more units, no one seems to be
able to best that price.

BTW, (pulls on hip boots), I have been getting a lot of requests from
list members on another list for a DIY-WB unit.  I don't have the
financial resources to help them all out, but I have offered certain
people (whom I believe would both honor the user's agreement AND not
complain if they have small issues using the unit because it isn't a
commercial item and doesn't have a spiffy display yet, yada, yada) an
assembled, tested unit sans sensor (I will test with my own sensor(s)
before shipping) for cost of components.  The agreement I have made with
them is that they MUST abide by the user's agreement, AND report their
results back to me for sharing with this list.  After all the noise, I
think I understand both the letter and intent of the user's agreement.
Do the designers agree that this type of distribution is within the
bounds of the agreement?

Lance

-----Original Message-----
From: owner-diy_efi at diy-efi.org [mailto:owner-diy_efi at diy-efi.org] On
Behalf Of Kevin _
Sent: Monday, December 10, 2001 10:16 PM
To: diy_efi at diy-efi.org
Subject: Re: Which WB O2 sensor is OK?



I believe you need a sensor from a non-CA car.  As we know, emission
laws 
are stricter in CA because of smog problems.  Therefore, I'm drawing the

assumption that the CA version had to run stoich to maintain maximum 
catalyst efficiency and lowest emissions.  You can easily detect stoich
with 
a cheaper, switching narrow-band O2 sensor.  In the other states, laws
are a 
little less strict so I'm guessing it was a lean-burn civic VX in 49
states. 
  Just to toss out a question, does anybody know what A:F they ran on
the 
lean-burn side of that VX?  I know it couldn't be that lean because its
not 
stratified charge, but I am curious...

Kevin



>Hey all,
>
>I know there was a recent post about this, but the prices are different

>and I want to make sure the bosch part is the same (for the price, it
>can't be beat!).
>
>So from www.thepartsbin.com listing under Civic 1.5 VX oxygen sensor
>1994- for CA only there are three listings;
>
>Oxygen Sensor C5010-62878  NTK Oxygen Sensor by NGK $94.31 Oxygen
>Sensor C5010-100896 Denso $99.98 Oxygen Sensor OE Connector C5010-88818

>Bosch  $57.60
>
>Can it be true that the Bosch is the same and it's only $60????
>
>Thanks,
>Rob


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