ISSPRO R18066 User Manual
ISSPRO Sensors
Form No. IS169 (Rev. H 11/15/2013
)
ISSPRO, INC.
•
2515 N.E. Riverside Way
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Post Office Box 11177
•
Portland, Oregon 97211-1899
503-528-3400
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800-888-8065
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Fax: 503-528-3495
www.isspro.com
© 2008 ISSPRO, Inc. All Rights Reserved.
FUEL 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 fuel pressure can be measured such as a test port
on the fuel pressure regulator or aftermarket lift pump. This may require
adapter fittings to accommodate the ⅛” NPTF sensor threads. See
engine-specific notes below for details.
DO NOT attempt to install in a location exposed to fuel rail
pressure on common rail systems, as these systems typically operate at
over 20,000 PSI.
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.
7
Trim the sensor harness wires to length, leaving enough length to allow the gauge to be
pulled from the pod or mounting location without disconnecting the connector.