ISSPRO R11289 - Manual (Page 2)

Form No. IS175 (Rev. H 06/10/2013 )
ISSPRO, INC. • 2515 N.E. Riverside Way • Post Office Box 11177 • Portland, Oregon 97211-1899
503-528-3400 • 800-888-8065 • Fax: 503-528-3495
www.isspro.com © 2012 ISSPRO, Inc. All Rights Reserved.
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  Install the two sensor harness wires along with the individual red,
orange and black wires into the orange insulation displacement connector
(see Fig.2 for positions), using the included wire insertion tool (R72023).
Follow the directions with the tool. DO NOT strip the wire ends, the
connector will pierce the wire insulation, and the insulation helps hold the
wire into the connector. Each wire must be pushed completely to the
bottom of its groove in the connector to ensure a good electrical
connection. Connect the other end of each of the remaining wires as
follows:
• Ignition – The red wire should be connected to one wire of the
included fuse holder using the included crimp splice, and the
other wire of the fuse holder connected to a circuit that switches
on with the key switch. Install the included 1 amp fuse in the
fuse holder.

Use only 1 amp fuses, higher amperage fuse may cause
damage to the gauge or to the vehicle
• Dimmer – Connect the orange wire to the factory gauge dimmer
circuit by either tapping into the in-cab fuse block or by
connecting directly to the wire running from the dimmer on the
headlight switch.
Figure 2: Connector.
Pin Wire Color Function
1 Red Ignition
2 Orange Dimmer
3 Black Ground
4 Empty
5 Green Sensor
6 Black Sensor
Ground
• Ground – The black wire in pin #3 should connect to a clean ground on the vehicle such as
the battery negative terminal or a factory ground bolt.
Slide the white dust cover over the orange connector once the wires are securely installed.
NOTE: The gauge backlighting will only illuminate if both the ignition supply AND the
backlighting circuits are on.
OPTIONAL: Daisy Chain Your Gauges – If multiple EV 2 gauges are being installed in one
location (such as a pod), you may use a single set of the Ignition, Dimmer, and Ground wires to
connect all of the gauges. Simply pass the wires from one orange connector to the next one in a
“daisy chain” configuration. A single 1-amp fuse will protect up to 12 EV 2 gauges.
8 Install the connector onto the back of the gauge (angled portion on end
of connector pointing up as shown in photo) , and then secure the gauge
in its mounting location. If drilling a mounting hole in a panel to mount
this gauge, the hole size should be 2.040”. Mounting Kit R19999 is
available for larger mounting holes up to 2.200”.
 NOTE!!! The orange connector MUST be installed in the direction shown. It is possible to force
it in backwards far enough to make an electrical connection which may damage the gauge!
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 Secure all wiring so that it does not interfere with moving parts or chafe on sharp edges. This
may be accomplished by routing the wiring within the factory wire harness sheath, using wire ties
and sheathing, and using appropriate grommets when passing through the firewall.
10 Engine specific information: Duramax engines: 2001-2004 LB7 – sensor is located in valley of
engine, towards driver's side, below the turbo outlet. 2006-2007 LBZ - sensor is at the rear of the
passenger side fuel rail, beneath the EGR cooler. Cummins – sensor is on the fuel rail, which runs
along the driver’s side of the valve cover.
Ground (black)
Sensor Ground (black)
Ignition (red)
Sensor (green)
Dimmer (Orange)
Pin Numbers
1
2
3
4
5
6
Pin #6