Haltech F3

[Steven Gorkowski]

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]