Haltech F3 issues

[Sandy]

I think the sensors are LM335Z from national semiconductors mounted in a
brass fitting. I think this has gone around before. I will have to dig up
the haltech unit I have and find out about the wires unless someone else
has the manual...Look towards friday if no one has it.

Sandy

At 06:43 PM 10/21/98 -0500, you wrote:
>Hello, my name is Eddie and I'm new the diy-efi list. My current project
>involves a Haltech F3 on a GM TPI intake. I bought the F3 used, and it seems
>to be quite versatile- unfortunately, the harness is somewhat hacked, and it
>is missing the TPS, MAT and coolant temp sensors. Haltech told me their F3
>ECU was incompatible with the GM temp sensors (on the good side, they said
>GM TPS sensor would work just fine), and to make bad news worse, the temp
>sensors were $58 a piece! I've already been through the diy-efi message
>archives looking for any information regarding the sensors- has anyone been
>able to confirm what the make/model of the sensor it is? Shelling out $116
>for a few temp sensors is absurd! I guess I'll find out soon enough, but
>will the F3 ECU operate w/o the two sensors?
>
>Also, I need a few hints on the wiring harness- the only wires I haven't
>identified are for the TPS, MAT, and coolant temp sensor. There is a
>purple/black pair that runs to a AMP connector (must be for one of the
>temperature sensors, but which one?), then I've got 5 other wires that are
>part of the sensor harness, all are cut: two blacks (grounds?), a gray (not
>to be confused with the 12v switched wire), an orange, and a white wire. I
>assume that the TPS (3 wire) and the other temp sensor (2 wire) each have a
>ground (black) wire, but where do the other 3 wire go (which colors belong
>to which sensors?)?
>
>Thanks!
>Eddie
>