Overview of the Enhanced Fuel Gauge Feature
The Deluxe Gauge Software Reflash greatly enhances the fuel gauge compared to the stock gauge. The Procoss and Proclimb sleds have a fuel tank that is very long. This makes the fuel gauge highly sensitive to the ride height of the sled, which varies between being stopped and moving. In addition, the signal that the fuel sensor in the tank sends to the gauge is sensitive to engine RPM.

The reflash enhances the fuel gauge by only reading the fuel level when the sled has been moving in a consistent manner. The following consistency parameters be true for the fuel level to be read:
  • RPM must be within range (initially set to between 3500 and 5000 RPM)
  • Speed must be within range (initially set to between 10 and 40 MPH)
  • Speed must not vary more than a certain amount of the last 5 seconds (initially set to 2 MPH variation)
In addition to changing the above consistency parameters to fine tune when the fuel gauge reads the fuel level, a reflash gauge can be calibrated to any size or shape fuel tank.

The following video demonstrates the Enhanced Fuel Gauge Features:


How to use the Enhanced Fuel Gauge

A Reflashed Deluxe Gauge is pre-calibrated for the Procross sleds. When the sled is started, the fuel gauge's outline will be flashing. A flashing outline means that the gauge is showing whatever the fuel level was when the sled was last running. Once the sled has been traveling consistently (met the criteria mentioned before) the fuel gauge outline will stop flashing, indicating the gauge has read the fuel level at least once since the sled has started.

The fuel gauge averages the fuel level readings over the last 30 seconds of consistent movement of the sled. This means that if there is a sudden change to the fuel level, such as filling up with gas, even after the outline stops flashing the gauge will take at least 30 seconds to stabilize to the new fuel level. It will most likely take longer since unless you purposely travel at a consistent speed for 30 seconds, the gauge will need only be sampling the fuel level for a portion of the time.

How to change the consistency parameters and calibrate the fuel gauge (if you want to further calibrate it)

The fuel gauge's consistency parameters and calibration cane changed by performing the following:
    Note that the best time to calibrate the fuel gauge is when the tank is completely empty and you are filling     the sled up with gas.
  1. Press the set button to enter the menu system
  2. Press the up or down buttons repeatedly to navigate the menu system until FUEL CAL is shown on the LCD
  3. Press the set button to begin changing the settings of the fuel gauge
  4. The capacity of the fuel tank will be shown in tenths of gallons (by default it is 90, indicating a 9 gallon fuel tank)
  5. Use the up and down buttons to modify the capacity to the desired amount (note that if you want change the value to liters you may do so).
  6. Press the set button to save the capacity
  7. The top of the LCD will now show the fuel level being calibrated. Use the up and down buttons to change the flashing number in the center of the gauge. Increase the number if the gauge is reading more fuel available than actually is at that capacity, and decrease the number if the gauge is reads less fuel than there actually is at that capacity.
  8. Press the set button and repeat step 7 for each capacity increment.
    • The fuel level being calibrated will be shown at the top of the LCD (starts at 0, goes up by .5 each time until the capacity of the tank is reached)
    • The bottom of the LCD, where the odometer is normally shown, shows the raw fuel level being currently read.
    • If you are filling the tank up at the same time you are calibrating the fuel level you can use the number at the bottom of the LCD for the value to change the flashing number to at each fuel level increment.
  9. Once RPML is shown at the top of the gauge you can now set the value for which the RPM must be higher for the fuel level to be read. Use the up and down buttons to change the number and press set when finished.
  10. Once RPMH is shown at the top of the gauge you can now set the value for which the RPM must be lower for the fuel level to be read. Use the up and down buttons to change the number and press set when finished.
  11. Once SPDL is shown at the top of the gauge you can now set the value for which the speed must be higher for the fuel level to be read. Use the up and down buttons to change the number and press set when finished.
  12. Once SPDH is shown at the top of the gauge you can now set the value for which the speed must be lower for the fuel level to be read. Use the up and down buttons to change the number and press set when finished.
  13. Once SPDD is shown you can use the up and down buttons to change the the acceptable variation in speed over the last 5 seconds for the fuel level to be read.
  14. Press set to finish changing the fuel gauge settings.
The following video demonstrates the callibration of the fuel gauge: