Haltech F3

[David Chambers]

Steven Gorkowski wrote:
> 
> Yes that is true but it is a three wire device , to make it a two wire
> you need at least one resistor in the sensor assuming it is not using
> engine ground which I  was reading a open each pin to the case of the
> sensor. The opamp used in this unit is a lm324 for signal conditioning .
> I have to trace it back.
> 
> Steve
> 
> Sandy wrote:
> 
> > Again, I'm pretty confidant that the sensor on the F3  is an LM335
> > from
> > national semiconductor.
> >
> > But, hey, it's still a guess...
> >
> > Sandy
> >
> > At 09:17 AM 5/16/98 -0500, you wrote:
> > >My F3 sensors stays at 43k ohms no matter what  temp. It is using
> > zener
> > >temp sensor in both non standard to gm . Throttle position sensor
> > has
> > >three colors here are the (note it's not the same as GM) .
> > >
> > >color                    normal pos            wot
> > >green /black          310 ohms            3.7k ohms
> > >
> > >orange/black        3.7k ohms            3.7k ohms
> > >
> > >orange/green        3.7k ohms            0 ohms
> > [snip]
>From what i remember of the F3 it used a diode as the temp sensor.
David