GlowShift MaxTow Series Oil Pressure Gauge - Manual

Oil Pressure Gauge
For Product Numbers: MT-DV04, MT-WDV04
Wire Harness Color Code
Red : 12v Constant (un-switched) Source (+) Orange : 12v Dimmer (switched) Source (+) (optional)
White: 12v Ignition (switched) Source (+) Black: Vehicle / Engine Ground (-)
1. Disconnect the negative battery cable.
2. The oil pressure senor unit may be installed 1 of the 2 ways listed
below:

Oil Gallery Test Port: Some engine oil galleries will have a
test port plug. Check your owner’s manual to verify the
location and thread size. Remove the port plug and install the
supplied pressure sensor. Additional adapters may be
required if the port is not threaded to 1/8 NPT.

T-Fitting Installation: Remove your stock oil pressure
sensor and fasten a T-fitting in its place. 1/8 NPT T-Fittings
are available for purchase at www.MaxTow.com. Using a T-
fitting allows you to “T” off of the port and opens up 3 more,
which then allows for the stock and MaxTow sensors to be
installed and operate simultaneously.
3. Route the pressure sensor wire harness from the back of the gauge
(slot #2) through the firewall, engine bay and to the sensor. Next,
couple and secure the sensor wire harness to the oil pressure sensor.

Be sure to use a grommet when routing wires through the
firewall to protect them from stripping and damage.
4. Connect the white wire to a positive 12 volt ignition (switched)
source. It may be connected to the fuse panel, an accessory wire, or any
positive 12 volt source that turns on and off with the ignition switch of
the vehicle.
5. Connect the
red wire to a positive 12 volt constant (un-switched) source,
either directly to the battery or to a fuse panel on the vehicle.

If wiring to an un-fused source, install a 3 amp fuse inline within
20 inches of the sources connection. You may obtain an optional
“expandable circuit” accessory. This component easily fits into
your fuse panel and provides an additional fused power wire for
accessories such as gauges. This is available at www.MaxTow.com
or a local auto parts store.
6. The Night Time Dimming feature decreases the brightness of the gauge
face by 30%. Connect the
orange wire to the 12 volt positive headlamp
source. This allows the mode to be activated when the headlights come on.
This step is optional and will not affect operation of the gauge if it is omitted.
NOTE: Do not connect the
orange wire to a dimmer wheel. This will
cause the gauge lighting to flicker.
7. Connect the black wire from the gauge, to any good (unpainted) ground
connection. You may also route a wire directly to the negative side of the
vehicle’s battery.
8. Reconnect the negative battery cable.