On Sun, 15 Sep 1996 20:49:44 -0500 ERIC ZENO <emz@viper.nauticom.net>
writes:

>    Right now I have no oil light at all, any time.
>    Can someone tell me if both switches should be grounded with no
>    oil pressure, (engine off)? 
>
You have two oil pressure sensing switches.
The low pressure switch (4.4) must open between 2.2 and 6.5 psi.( i.e. it
is CLOSED with NO oil pressure. This gives you a light check when you
turn the ignition to on.)
It is located between cylinder 3 and 4.

The other switch (13.1) must CLOSE between 10.9 and 14.8 psi.
It is in the vicinity of the oil pump.

The flashing LED is associated with the 4.4 sensor.
The flashing LED and the buzzer occur with RPM>2000 and no switch closure
from the 13.1 sensor.
A loose connector in the engine compartment gave me the LED/Buzzer
symptom .