AEM 30-5144 Analog Boost Fuel Pressure SAE Gauge User Manual

AEM Performance Electronics

2205 126th Street Unit A, Hawthorne, CA. 90250

Phone: [phone] Fax: [phone]

http://www.aemelectronics.com

Instruction Part Number: 10-5144 Rev 01

 2010 AEM Performance Electronics

Part Number 30-5144

Analog Style 15 PSI Fuel/Boost Pressure Gauge

NOTE: Faceplate Configuration Instructions Included on Separate Sheet

Figure 1. Wiring Schematic

AEM Oil/Fuel Pressure Gauge Parts

1 x 35-5144 Pressure Gauge Assembly
1 x 30-2131-15 PSIG Pressure Sensor
1 x 35-4302 Install Kit (6 Butt Connectors)
1 x 10-5144 Installation Instructions
1 x 35-3411 8-Pin Power Harness
1 x 35-3412 3-Pin Sensor Harness
1 x 35-8529S Silver Bezel
1 x 35-8550W Fuel Pressure Faceplate, White
1 x 35-8551B Boost Pressure Faceplate, Black
1 x 35-8551W Boost Pressure Faceplate, White
1 x Faceplate Configuration Instructions
1 x Paper Clip Needle Removal Tool
1 x 35-2151 1/8” NPT Female Hose Adapter
1 x 35-2149 Boost Tee
1 x 8-161 36” Vacuum Hose
4 x 1-117 Zip Tie

CAUTION:

When working with the fuel system, choose a suitable
work area that is well ventilated and free from any
sparks or open flames. Do not smoke while working
on the fuel system. Most fuel systems remain
pressurized for a period of time, after the key has been
turned off. Be sure to relieve the pressure before
installing the sensor. This can often be accomplished
by removing the fuel pump fuse and cranking/running
the engine.

INSTALLATION

1. Disconnect the negative battery cable.

2. Secure the gauge in a 2 1/16th” (52MM) mounting hole with the supplied bracket.

3. Plug the 8-wire power harness into the mating connector on the back of the
gauge and connect the wires as shown in Figure 1. Note: the locating tabs on
the side of the connector should be nearest the center of the gauge.

4. To measure fuel pressure, thread the sensor into a suitable pressure port that
has 1/8” NPT female threads. Note: a small amount of thread sealant may be
used. Before starting the engine, wipe up any spilled fuel and check for leaks by
turning the key on and allowing the fuel system to pressurize. To measure boost,
connect the sensor to a good engine manifold pressure source downstream of
the throttle body using the supplied hose adapter, boost tee, vacuum hose, and
zip ties.

5. Connect the sensor to the gauge using the 3-wire sensor cable. The single-row
connector connects to the back of the gauge. The locating tabs on the single­row connector should be nearest the center of the gauge.

6. Reconnect the negative battery cable.

RED (Power)- Connect to a constant 12 volt power source utilizing a 5A fuse.
BLACK (Ground) – Connect to a clean power ground.
PINK (Switched Power) – Connect to a switched 12 volt power source utilizing a 5A

fuse.
GREY (Lighting Intensity) - Connect to instrument lighting circuit supply voltage.
*WHITE (Analog Output) - Connect to Analog + Input.
*BROWN (Analog Ground) - Connect to Analog – input. (Must be connected if Analog +

is used)
*optional – only needed if using the available differential analog output
Wiring notes:

RED - When wired as shown above, the gauge will park the needle against the
needle stop upon powering down. Alternatively, the RED wire can be connected to the
same location as the PINK wire. With the RED wire and the PINK wire connected to the
same switched power, the needle will remain at its current position upon powering
down. For both power connection methods, the needle will rotate to the parked position
before rotating to the value of the current operating condition upon powering up.
GREY – The GREY wire is used to control the lighting intensity of the gauge.
Maximum lighting intensity is achieved when the GREY wire is connected to 12 volts.
Minimum lighting intensity is achieved when the GREY wire is not connected. The
instrumentation illumination on many vehicles is controlled by varying the supply voltage
to the instrument panel lights. When the GREY wire is connected to the instrument
panel supply voltage, the intensity of the gauge is controlled by the dimmer switch on
the dash.
WHITE – The WHITE wire should be connected to the Analog + input on the
AEM EMS or the analog + input on a similar device.

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BROWN – The BROWN wire should be connected to the Analog – input. If the

Figure 3. Changing Bezels

BEZEL

LENS

RUBBER
SPACER

EMS or similar device does not have a – input, the BROWN wire should be connected
to a sensor ground. If no sensor ground is available, the BROWN wire should be
connected to a power ground. Note: The BROWN wire must be connected in order

to get correct readings from the analog output.
Changing the Bezel and Faceplate

The gauge kit comes with the black bezel and black faceplate installed. However, the
kit also comes with a silver bezel and multiple faceplates. Instructions on how to
change the faceplate are included in the kit on a separate sheet of paper. To change
the bezel, orient the gauge so you are looking at the faceplate. Rotate the bezel
counter-clockwise to unscrew it from the gauge cup. The bezel, lens, and rubber
spacer are all removable. Reassemble the gauge as shown below in Figure 3. Note:
When reassembling the gauge, it may be necessary to apply a light amount of pressure
on the lens and spacer to keep the faceplate from rotating when reinstalling the bezel.

Do not over tighten the bezel when reassembling the gauge.

Backlighting

The AEM Boost Gauge has 7 different backlight colors available to the end user, which
closely match some of the more common factory dash panels: white, blue, green, red,
orange, light blue, and aqua. To change the backlight color, rotate the backlighting
switch using a small precision style screwdriver. The backlight switch is accessed
through the small hole in the back of the gauge.

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