More DIY EGOR

[Donna Wooten]

I don't see any reason why not.  my only question is if it is needed or
not.  if the temp is being maintained well enough that the sensor gives
accurate data then why add more hardware & i think more importantly why add
another level of complication?

sounds to me like the temp control that is in that temp driver circuit SB
OK.

BW



> [Original Message]
> From: 944 Technologist <944technologist at my-deja.com>
> To: <diy_efi at diy-efi.org>
> Date: 11/18/00 12:17:08 AM
> Subject: Re: More DIY EGOR
>
> Is adding a Temp Sensor out of the Question? Does it violate the design
criteria for some reason. Cost? Mechanical, only one hole aloud in the
exhaust pipe? I only subscribed again a few months ago.
> 
> If not, you could use it and a ROM lookup table to display accurate
Lambda values. Using measured Lambda and Temperature as your X & Y values.
The table would have the corrected Lambda values.
> 
> FR Wilk
> __________________________________
> 
> >From: RDwoo10 at aol.com
> >Date: Sat, 18 Nov 2000 01:15:42 EST
> >Subject: Re: More DIY EGOR
> >To: diy_efi at diy-efi.org
> >Reply-To: diy_efi at diy-efi.org
> >
> >From what I am understanding, yes & no.  there is not a sensor that
measures 
> >the exhaust temp & sends that "temp" somewhere.  But, the resistance of
the 
> >heater does change when the temp goes up & down.  This means that by 
> >"measuring" the current through the heater one can tell if the sensor is 
> >hotter (or colder) than it was a minute ago (not literal minute).
> >
> >This leads to the question, is it good enough for accurate measurements
from 
> >the sensor in regards to O2 conc.?  I think that Bruce probably summed
it up 
> >earlier (to paraphrase, if I may), it is good enough for tuning, but
probably 
> >not for lab grade accuracy."
> >
> >BW
> >
>
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--- Donna Wooten
--- r71chevy at earthlink.net
--- EarthLink: It's your Internet.


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