'86 4kq temp idiot light

[Alex Rosser <lxrosser@myxo.ugcs.caltech.edu>]

So, the Quattro has found a new way to act wierd(I love the car, but it seems
to want me to spend lots of money to prove it).

A couple of times in the past day I've had the temp light come on(very
briefly) under similiar circumstances. Both times happened while accelerating
through a tight turn(once to the left, once to the right). Symptom is a
quick(and on a sustained 180 degree turn uphill not so quick... long enough
for me to see the flash, look down, see it was temp, then see the light go
out, the second time it happened was a freeway on-ramp and I probably
wouldn't have seen the flash if I hadn't been looking for it) flash of the
light, but no increase in the reading on the temperature gauge(which was
reading somewhat below the point where the fan usually kicks in, so I'm
pretty sure I wasn't seeing real overheating).

So, the questions... are both the temp gauge and the idiot light triggered
off the same sensor? Regardless, where is the sensor that triggers the idiot
light? I'm sort of assuming a wiring disintegration, but has anyone else had
this happen and found otherwise?

-Alex
 1971 Volvo 142E		1994 Volvo 944T
 1987 Porsche 911 Targa		1986 Audi 4000cs Quattro