ISSPRO R11289 - Manual

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.
FUEL RAIL PRESSURE GAUGE AND WIRE
HARNESS INSTALLATION INSTRUCTIONS
1
 Disconnect batteries. Do not reconnect battery power until
system is fully configured to avoid risk of shock or fire.
I C O N K E Y
 CAUTION
 Tools may be required
 Shown in picture
2 Find the factory Rail Pressure sensor and disconnect its harness
connector. For locations on some specific vehicles see section 10 below.
3 Route the ISSPRO Rail Pressure harness up to the Rail Pressure sensor. One end of the ISSPRO
Rail Pressure Harness will have a connector similar to the one you just unplugged from the Rail
Pressure sensor. Plug this connector into the Rail Pressure sensor, and plug the truck harness
connector (which you disconnected in step #2) into the remaining connection on the Rail Pressure
harness. Be sure on both harness connections that the connector with the latch is oriented so that
its latch engages the angled block on the mating connector, not the non-angled block on the other
side of the connector.
Figure 1: Wrong Direction Correct Direction
 The Rail Pressure sensor is critical to engine operation. If the harness is connected incorrectly
or wire insulation is damaged and sensor wires are shorted out, engine damage can result. Retain
and protect all wiring.
4 If installing other items that connect to the Rail Pressure sensor, such as a power-adding module,
connect the ISSPRO Rail Pressure Harness directly to the Rail Pressure sensor, then connect the
power module's harness between the ISSPRO harness and the truck harness.
5 Route the separate black & green wires of the sensor harness to the intended gauge mounting
location, using grommets as appropriate when passing through the firewall.
6
  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.