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Subject:Re: Temp II voltages
From:David Beierl
Date:Mon, 30 Apr 2001 21:45:41 -0400

At 10:31 PM 4/30/2001, Jason Yasment wrote:
>And if I remember correctly, David drives an '84 Digijet and Darrell later
>model Digifants.  Two different systems with possibly differing specs of
>which I am learning in more detail everyday.

The resistance specs for the senders are the same, including an allowance
of +/- 12.5% (at 100C) .  That doesn't mean that the ECU necessarily drives
them the same way.  My own *guess* would be that the difference is not
significant and/or relates to grounding.  But it's strictly a guess.  If
Darrell would send out 800 Digitools we'd have some real data! <g>

> >
> >I believe that I have seen David Beierl refer to the 0.1 to 0.2 as normal
> >for his Temp II sensor.

That was what we got with both installed and replacement sensors, using Ken
Wilford's Digitool installed on his ECU in my motor.

>   But Darrell Boehler mentioned 0.3 to 0.4 volts.

Yeah, but what does he know?  <g>

> >
> >I would like to know if the engine management software distinguishes
> >between
> >the 2 different ranges.

Again, my guess is no.  Someone who knows speak up?

d

David Beierl - Providence, RI
  http://pws.prserv.net/synergy/Vanagon/
'84 Westy "Dutiful Passage"
'85 GL "Poor Relation"