Dakota Digital gauges

[56 cal wagon]

Do you need to change original gas sending unit? How does speedo hook up to 4 speed minchie?

[chevynut]

I would call DD. Are you using the new VHX gauges? If the speedo needs a digital input, they make a pulse-generator that will connect to your muncie.

[Bihili]

Stock 56 sending unit is 30 Ohms and should work with DD gauges.

The fuel gauge sending unit is not normally supplied with the system. The display system will usually use the fuel sending unit that is already in the tank. The sending units that are compatible with this system are as follows: GM, Ford, VDO, and Stewart Warner. It is also possible to program in a custom setting for senders that are not pre-programmed into the system. The Stewart Warner sender type is used by most after-market gauges. A single wire should be run from the fuel sender to the control box terminal marked FUEL. If your wiring harness already has a wire routed through the vehicle for the fuel sender then it may be used. If using a wire from an existing harness, make sure that the wire does not have power. The fuel sender gets power from the control box only. Fuel senders get their ground from the sender mounting plate. Make sure that a ground wire is connected from one of the sender mounting bolts to the vehicle frame.
The fuel sender type is selected using the setup menu under “FUEL”. The settings are discussed later in the section on internal adjustments.
The fuel gauge will initially display “FL” until the fuel sender type has been set. If the fuel display shows “—“ this indicates that the control box is sensing a short to ground or out-of-range error from the sender or sender wire. If the fuel display shows “EE” this indicates that the control box is sensing an open circuit or out-of-range error from the sender. If either indication remains on the display, inspect the sender wire for damage, check the routing of the sender wire, check the sending unit grounding, and check that the sender selection is set correctly for the sending unit that is connected.
FUEL SETUP
The control box can read 7 different types of preset fuel senders and can also be programmed for a custom fuel sender setup. Press and hold SW 1 switch while turning the key on. Release the switch. When “FUEL” is displayed, press the switch again and then release it. The message display should switch between “SENDER”, “CUSTOM”, and “TEST”.
Sender Selection
When “SENDER” is displayed press and release the switch.
Press and release the switch until the desired setting is shown. The preset types are listed in the table below.
Press and hold the switch until “DONE” is displayed.
Sender type
Menu
Empty R
Full R
GM 0-30 ohm
GM 30
0 ohms
30 ohms
GM 0-90 ohm
GM 90
0 ohms
90 ohms
GM 40-250 ohm
GM 250
40 ohms
249 ohms
FORD 73-10 ohm
F 73
73 ohms
10 ohms
FORD 20-150 ohm
F 150
20 ohms
150 ohms
VDO 10-180 ohm
V 180
10 ohms
180 ohms
SW/SUN 33-240
SW 33
240 ohms
33 ohms
User programmed
CUSTOM
User settable
User settable


Custom Fuel setup
You will either need to have the sender out of the tank, or begin with the tank empty and add fuel during the setup.
When “CUSTOM” is displayed press and release the switch.
The speed display will show the current sender resistance seen by the control box.
The message display will show “SET 00”. Move the float to the empty position and then press and release the switch.
The message display will show “SET 33”. Release the switch and move the float to 1/3 full and then press and release the switch.
The message display will show “SET 66”. Release the switch and move the float to 2/3 full and then press and release the switch.
The message display will show “SET 99”. Release the switch and move the float to the full position and then press and release the switch. The new sender is not stored under the “CUSTOM” sender selection.
The message display will show begin going back through the main menu. When “FUEL” is displayed, press and release the switch.
When “SENDER” is displayed press and release the switch.
The current sender setting will now be displayed. Press and release the switch until “CUSTOM” is displayed.
Press and hold the switch until “DONE” is displayed.

[the_dawg]

Good info there. They make many adapters for the elec speedos. Even 1s that have mechanical and pulse outputs.. Pretty sweet stuff