Burt Squareman wrote:
> "jim beam" <nospam@example.net> wrote in message news:jdadnRl8_6YgstbeRVn-qQ@speakeasy.net...
>
>
>>stick with oem sensors. aftermarket like bosch will get you through
>>emissions, but their reaction times are very poor compared to oem, and
>>performance consequently sucks. i did some experimentation with
>>different sensors i'd got from a junkyard. no doubt about it, oem is
>>the way to go.
>
>
> I did a Bosch/Denso experimentations. Their response time is about
> equal on an analog voltmeter. I might record their response time on a
> dual digital scope in the near future.

that would be excellent!

> A $225 Genuine O2 sensor could
> beat out the $49 Bosch, but by how much is the question.

indeed. my test was limited to "drivability" which meant two things on
my automatic: hesitation and smoothness of gear shifts. the first, i
kinda hoped for, the second i was not expecting at all. when i first
got this 89, it had been filled with non-honda atf and had the old
"shift like a door slamming" feeling. i'd changed the atf back to honda
three times and the shift was a lot better, but still a little harsh and
i figured it was probably due to permanent contamination of the
clutches. when i changed the sensor however, suddenly, the harsh
shifting improved dramatically!!!

>
> As long as the fuel/air supply are clean and no or little oil or radiator fluid
> consumption, the Bosch can last more than 200K.

can't say i have the patience for the longevity test. my sensors are
single wire unheated - that may have some influence on results.