Banks Power Dodge Trucks: (Diesel ’03 - 07 5.9L Cummins) Tuner- Six-Gun Diesel Tuner (235, 250, 305 HP Dodge 5.9L Cummins (24-valve) Trucks) '03-04 For use with Six-Gun Switch - Manual (Page 28)

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6.
Turn the key to the OFF position
and remove the engine rating jumper
key. Re-install the thermocouple
leadwire into the Six-Gun Diesel
Tuner box.
Note: each time the key is turned
on, the Six-Gun Diesel tuner will flash
the red LeD once at power up to
indicate that it has been calibrated as a
235hp/250 hp engine rating.
A 305 hp rated engine calibration
does not flash a red LeD. If you have
incorrectly used a 235 hp/250 hp
calibration on a 305 hp rated engine,
excessive fuel rail pressure will result
and the Six-Gun Diesel tuner will
automatically adjust the calibration to
the 305 hp rated engine level and the
red LeD will not flash at power up. A
“4,4” diagnostic code will be generated
and stored in the Six-Gun Diesel tuner
in the process. A ”4,4” will also be
generated and stored in the Six-Gun
Diesel tuner on a 235 hp or 250 hp rated
engine if excessive fuel rail pressure is
detected. this “4,4” code is eliminated
and cleared when the key is turned off
and turned back on.
If “4,4” diagnostic code keeps being
generated and stored on your Six-
Gun Diesel tuner, contact Gale Banks
engineering technical Support.
-END, SEcTION 5-
Figure 21