Either the vehicle you purchased has a Transfer Flow auxiliary fuel tank system
installed on it or you purchased one yourself. In either case, we’d like to introduce
you to Trax-UFS, Transfer Flow’s auxiliary universal fuel system. Trax-UFS is
a sophisticated computer controlled auxiliary fuel tank system that functions
similarly to a computer controlled balance line.
How does it work? Although it may sound difficult, it’s rather simple! e Trax-
UFS computer determines the fuel level of the main tank, the level of the auxiliary
tank, and the status of the vehicle’s fuel system once every few seconds. When
necessary, the Trax-UFS module will turn on the auxiliary fuel pump and transfer
fuel to the main tank. e message, “PMP ON” (pump on), will be displayed on
the dash mounted LCD when this is occurring. e fuel level in the main tank
and auxiliary tank will decrease at the same rate. e LCD display will indicate
the gallons in the main tank, the auxiliary tank, the combined gallonage, and the
operational status of the fuel system. e Trax-UFS computer will also adjust
the OEM fuel gauge accordingly based on the combined total.
With the addition of Trax-UFS, there’s no need for a toggle switch to flip back
and forth between the main and auxiliary tanks. e Trax-UFS module does the
transferring of fuel for you. As an added safety feature, an anti-siphoning device
is part of the system so there can never be an overflow of fuel! While a problem
is unlikely to occur, a diagnostic switch is built in so the vehicle’s operator can
view previously stored diagnostic trouble codes in the Trax-UFS module.
On vehicles equipped with OBD-II with leak detection operational, the LCD
may indicate “MLKT” or “ALKT” for a short period of time. is means that
the OEM computer is conducting a leak detection test on either the main tank
(MLKT) or on the auxiliary tank (ALKT). is is a normal operation of the fuel
system and is not an error message.
Please read this user’s guide to better understand Trax-UFS and to use it for
troubleshooting purposes. We hope you enjoy your Transfer Flow auxiliary fuel
tank system!
TRAXUFS
Welcome to Transfer Flow and Trax-UFS
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