INSTALLATION GUIDE
PROFESSIONAL STEPPER-MOTOR
ANALOGUE FUEL LEVEL GAUGE
2650-1290-00 Rev. B
Installation
1. Check that you have all parts required for installation, and that the engine is cool.
2. Disconnect the negative (-) battery cable.
3. Gauge mounts in a 52.4mm hole.
4. Connect the purple sensor wire to the fuel level sensor. Existing wires may be used, or route the purple
sensor wire to the fuel tank. (The standard fuel level gauge, if equipped, must be disconnected.)
5. Connect the white wire to dash lighting or switchable 12V light source.
6. Connect one of the black wires on gauge connector to a good ground. (Either black wire, does not
matter which one)
7. Connect the red power wire to a switched +12V source.
8. Reconnect the negative (-) battery cable.
CAUTION!
As a safety precaution, the red wire
of this product should be fused before
connecting to the 12V ignition switch.
We recommend using a 3 AMP
automotive type fuse.
Setting the Sensor Type
1. The brown and black wires are used to set the sensor type. The gauge ships pre-programmed to read 0-90 ohm sensors.
If using a 0-90 ohm sensor, separately insulate the ends of the brown and black wires with electrical tape, and coil them up
under the dash.
2. If any other sensor type is required, connect a momentary switch to the black and brown wires (see illustration above), or
alternately touch the stripped ends of the black and brown wires to simulate pushing the button.
3. Press and hold the button, and apply power to the gauge. The needle will sweep back and forth stopping momentarily on each
1
-tank mark, indicating that the gauge is in sensor select mode.
⁄
8
4. Allow the needle to move to the appropriate location on the dial per the sensor select chart (see next page), and release the
button. The needle can be bumped to the next position by momentarily pressing the button.
5. Remove power from the gauge to store the new sensor type by turning off ignition switch.
6. Re-apply power to the gauge, and confirm that it reads the proper fuel level. If the proper fuel level is not displayed, return to
step 3 and recalibrate. If the proper fuel level is still not indicated, perform Custom Sensor Calibration.
7. Remove power from the gauge by turning off ignition switch.
8. Remove switch if used, and tape the ends of the brown and black wires, so they can not touch.
9. Coil the wires up under the dash.
MOMENTARY SWITCH
(OPTIONAL)
CONNECT TO FUEL
LEVEL SENSOR (ENSURE
SENSOR IS GROUNDED)
+ 12V DASH LIGHTING
(SEE CAUTION LEFT)
BROWN
FOR CLASSIC GAUGES ONLY
CONNECT TO
12V LIGHTING
BLACK
CONNECT
TO GOOD
GROUND
PURPLE
FUSE
+ 12V CONNECTION
LIGHT
WHITE
BLACK
BLACK
GOOD ENGINE
GROUND/EARTH
GB