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“Oil Pressure”
Locate the 18 gauge Black/Lt.Blue wire printed
[ENGINE SECTION A] << TO OIL SENDER #922 TO
OIL GAUGE>> [INSTRUMENT PANEL SECTION].
Do
not get this confused with the Black/Blue wire for the
choke function.
The
#922
wire will send a ground signal from the
sending unit/switch through the bulkhead into the interior
of the vehicle to the gauge cluster and to the aftermarket
gauge connector. If you are using a mechanical pressure
gauge, this wire will not be needed.
The oil pressure sending unit will generally be located near the oil filter or on the
back of the block behind the intake manifold.
Route this Black/Blue
#922
wire to
the oil pressure sending unit, install
the appropriate terminal for your
connection, and connect.
Terminals
and
a
factory
style
connector, seen in the photo to the
right, have been supplied to allow
connecting to a “stud” style sensor
like the one shown above. Rollover
crimpers will be needed to properly
install this terminal.
If you have a 2 wire sensor on a newer fuel injected donor engine it will not work
for your pressure gauge. 2 wire sensors on fuel injected engines are for fuel pump
control and are not designed for oil pressure gauge readings. These types of sensors
are generally found on GM TBI and TPI engines.
“Electric Choke”
Locate the 18 gauge Black/Blue wire
printed
[ENGINE SECTION] #954 TO ELECTRIC
CHOKE
. This wire will provide a switched ignition
power source to the choke from the 10 amp
CHOKE fuse. This wire will have power when the
ignition switch is in the ON/RUN position.
When you turn your key to the
“ON/RUN”
position, the voltage this wire carries will heat the
bi-metal spring attached to the shaft of the choke.
This spring will unravel as it is heated causing the
choke to slowly open.
When the ignition is turned to the “OFF” position, power is no
longer on this wire, causing the spring to begin to cool and contract, closing the choke.