ISSPRO R18333 - Manual

Form No. IS172 (Rev. G 11/21/2013)
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
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TURBO BOOST PRESSURE GAUGE AND
SENSOR INSTALLATION INSTRUCTIONS
I C O N K E Y

CAUTION
 Tools may be required

Shown in picture
1
 Disconnect batteries. Do not reconnect battery power until system
is fully configured to avoid risk of shock or fire.
2 Find a location where boost pressure can be measured such as an existing
port on the intake, or cut the MAP (Manifold Absolute Pressure) line and
insert a Tee fitting (obtain from your local automotive supply store). If
there is an M8 x 1.25 intake bolt exposed to intake pressure, it can be
replaced with R7741, a hollow boost bolt for 1998.5 - 2006 Dodge models.
Alternatively, drill and tap the intake elbow for ⅛” NPTF.
3
Install the new sensor. Pressure sensor threads are ⅛” NPTF.
 Many Emission Control Devices are connected to OEM sensors or switches. Be careful not to
disable these when installing a sensor.
4 If leakage occurs at the sensor, tighten one-quarter turn at a time until leakage stops. If necessary,
thread sealant such as Teflon tape may be used.
 When using a torque wrench, tighten approximately 20nm/15 lb-in. or slightly more, if leakage
occurs. Do not use the body of the sensor to tighten! Use only the hex and the correct wrench.
Do not over tighten!
5
  Connect the pressure sensor to the pressure sensor harness by pressing the connector into
the slot.
Figure 1: Pressure sensor and harness.
6 Route the sensor harness to the intended gauge mounting location, using grommets as appropriate
when passing through the firewall. Connect the sensor harness to the gauge connector as follows:
7
  Trim wires to desired length. The red/yellow, green, and black wires are the +5V, sensor,
and ground connection, and connect to cavities 4, 5, and 6 of the orange connector respectively (see
Figure 2).
 Install the three wires into the insulation displacement connector (orange connector). Carefully
lay the wires across the connector cavities, hold the connector steady with a vice or pliers and press
the wires into each cavity with a small screwdriver. Each wire must be pushed completely to the
bottom of its groove in the connector, to ensure a good electrical connection. Note that the 3
sensor harness wires run only between the gauge and the sensor, not connecting to any other power
or ground.