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A single wire should be run from the terminal on top of the water sender to the control
box terminal marked WATER. If your wiring harness already has a wire routed through the
vehicle for the water temperature then it may be used. Do not route the water sender wire along
side a spark plug wire or other high current or high voltage wires. Doing so can cause incorrect
or erratic gauge readings.
If the water 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 water display shows “EEE”
this indicates that the control box is sensing an open circuit or out-of-range error from the
sender or sender wire. 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 correct sending unit is connected. The sending unit should be stamped with “VDO” and
“150°C”.
Replacement sender part numbers are:
Dakota Digital VDO equivalent
1/8” NPT SEN-04-1 323 057
3/8” NPT SEN-04-2 323 059
½” NPT SEN-04-4 323 060
12mm SEN-04-6 323 092
OIL
The oil pressure sender included with this system must be used. Other senders will
cause incorrect readings. If the sender mounting location is too small or is restricted, then pipe
fittings may be required to move the sender away from the restrictions. Oil pressure line may
also be used to remote mount the sender to the fire wall. The sender gets its electrical ground
connection to the engine block through its threads. Do not use Teflon tape or thread sealant on
the sender threads. Doing so can cause incorrect readings or cause the gauge to display an
out-of-range indication. If the sender is being remote mounted away from the engine, make
sure the sender case is ground well. The sender has 1/8 NPT thread size. If the engine you
have requires a different thread size you will need to use an adapter to convert the thread size.
Adapters can be found at your local auto parts dealer or hardware store.
A single wire should be run from the terminal on top of the oil sender to the control box
terminal marked OIL. If your wiring harness already has a wire routed through the vehicle for
the oil sender then it may be used. Do not route the oil sender wire along side a spark plug wire
or other high current or high voltage wires. Doing so can cause incorrect or erratic gauge
readings.
If the oil 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 oil 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 correct sending unit is
connected.
Replacement sender part numbers are:
Dakota Digital VDO equivalent
100 psi 150015 360 086
FUEL
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. The
Stewart Warner sender type is used by most after-market gauges. The DIP programming
switches inside the control box must be set to indicate which sender type you are using.