"Michael Pardee" <michaeltnull@cybertrails.com> wrote in
news:auydnWmuZtwypdHeRVn-vQ@sedona.net:
> "jim beam" <nospam@example.net> wrote in message
> news
oCdnYKelv5iJtbeRVn-qQ@speakeasy.net...
>> Burt Squareman wrote:
>>> "jim beam" <nospam@example.net> wrote in message
>>> news:jdadnRl8_6YgstbeRVn-qQ@speakeasy.net...
>> 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!!!
>>
> Interesting! I hadn't considered the effect of O2 sensor response time
> on changes like throttle changes or shifting. It makes sense, though.
> That also means that old O2 sensors are likely to affect shift
> smoothness and throttle response, since slowness is a common "failure"
> mode.
>
Could this be "Jez's" RPM oscillating problem?
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TeGGeR®
The Unofficial Honda/Acura FAQ
www.tegger.com/hondafaq/