Again the subject of shuddering.... and the possible involvement of
?  oxygen sensor ?    vs.   inferior gasoline  ?   vs.   (perhaps)  the
EGR
valve.

Certainly easiest to try:  a more highly refined gasoline  (in CA, we
pay
more at the pump in taxes, for gasoline offered for sale in CA, that is
more highly refined , so that's not likely to be a cause).

The EGR valve has certainly been implicated before in numerous posts
which recommend replacement  or cleansing.   Easily done.

O2 sensor?   That's another matter entirely.  I'd rather try the first
before
running out and replacing the sensor.  Could be costly;  but, then, an
EGR
valve is also costly, if replaced.

(As an aside... I own a Saab Turbo... of some years.... and have just
spent
a large sum to replace two burned exhaust valves.   Within a week, my
wife
had a complete electrical shutdown.... while driving.  Came to a halt,
but was
able to restart and proceed (slowly) to a nearby destination.   Turns
out, there's
a sensor that regulates the lean-rich gas setting... which, when not
operating
correctly, can cause a shutdown.......     Why mention this?  Because
the
computer diagnostic threw a code for this sensor, and ALSO for the O2
sensor.

With the correction of the mixture sensor,  the O2 sensor code didn't
come up.)

Sheafe Ewing

On Nov 4, 2009, at 5:25 PM, honda-insight@yahoogroups.com wrote:

>  To discuss ideas and issues regarding the Honda Insight automobile
> and to share general enthusiasm about it.
> Messages In This Digest (2 Messages)
>
>
> 1a.
>  Re: oxygen sensor  From: mpsylvester
> 1b.
>  Re: oxygen sensor  From: Ann Reed
> View All Topics | Create New Topic
>  Messages
>
> 1a.
>  Re: oxygen sensor
> Posted by: "mpsylvester"  yahoo@...     mpsylvester
>
>  Wed Nov 4, 2009 1:50 pm (PST)
>
>
>
>  Just to add to what's been said about fuel. I experienced some
> juddering at 1100rpm, and a faulty oxygen sensor was one of the
> possible diagnoses. The fault was cleared by a thorough cleaning of
> the EGR valve.
>
>  I then chose to stop buying supermarket fuel. I switched to a petrol
> with better detergents (Shell Optimax at first, then Shell V-Power)
> and the problem did not recur.
>
>  Sadly, in my present posting there's no handy Shell forecourt. 8-(
>
>  Martin
>  2000.004
>
>  Back to top
>  Reply to sender  |  Reply to group  |  Reply via web post
>  Messages in this topic  (3)
> 1b.
>  Re: oxygen sensor
> Posted by: "Ann Reed"  joynbeing@...     annmreed444
>
>  Wed Nov 4, 2009 5:25 pm (PST)
>
>
>  This is interesting.  Although I received my o2 sensor, I have not
> yet had it installed because my car seems to be performing OK without
> it .   The check engine light went out even before I ordered the
> sensor, but  I had two computer readings that indicated it was
> probably the sensor.
>
>  ________________________________
>  From: mpsylvester <yahoo@...>
>  To: honda-insight@yahoogroups.com
>  Sent: Wed, November 4, 2009 4:50:30 PM
>  Subject: [honda-insight] Re: oxygen sensor
>
>   
>
>  Just to add to what's been said about fuel. I experienced some
> juddering at 1100rpm, and a faulty oxygen sensor was one of the
> possible diagnoses. The fault was cleared by a thorough cleaning of
> the EGR valve.
>
>  I then chose to stop buying supermarket fuel. I switched to a petrol
> with better detergents (Shell Optimax at first, then Shell V-Power)
> and the problem did not recur.
>
>  Sadly, in my present posting there's no handy Shell forecourt. 8-(
>
>  Martin
>  2000.004
>
>  Back to top
>  Reply to sender  |  Reply to group  |  Reply via web post
>  Messages in this topic  (3)
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