Dave wrote:
: Thanks all, but note in my post, the sender has been replaced with
: new, the rsistance is exactly on spec, and no dead spots in it's
: operation..

: The fuel level has no effect on the fault..the guage literally "goes
: to sleep" when ever it feels like it, usually after about 15 mins,
: then occassionally, during flight, "wakes up" and reads correctly for
: a few minutes.. then away it goes.. (down)..

: Switching wires to the guages is a bear of a job under the panel, but
: I may do it back under the seat, just to be sure..

: Anybody know where to get a wiring diagram/component location info on
: the WArrior? my CD manual is a bit lacking here...

Some PA28's (like my mechanic's T-Arrow) have a strange sending unit setup.
IIRC, there are two per tank, and they must be *insulated* from the tank. Putting the
wrong washers on the sending unit will ground them and cause weird readings (like 1/2
full when full, etc).

I haven't followed the details of this thread, but that might be worth looking
into. Swapping wires at the disconnect under the rear seat sounds like an easy way to
check.

If you do go under the panel, I seem to remember something a bit weird about
how the gauges were wired in mine. The service manual should have the schematic all
laid out.

-Cory

--

************************************************** ***********************
* Cory Papenfuss *
* Electrical Engineering candidate Ph.D. graduate student *
* Virginia Polytechnic Institute and State University *
************************************************** ***********************