Approved Installation Manual for the Experimental Report No 104
EDM-350 Page 24 of 46 Rev A
Engine Data Management System Date 7-10-2021
20. Fuel Flow Totalizer, Refuel Question
The fuel flow totalizer can be set to a different value than the fuel level tank size. To reprogram the “Refuel setting
for Main (total) and Auxiliary (total), enter the “Factory Program Mode” by holding buttons 1 and 2 in for a few
seconds until the display reads “Program”. Keep tapping next until you see “END”. At this point hold in button 1 and
2 again until the display (5 sec.) changes and you see FACTORY. At this point you will see MAIN = XX, adjust with
the “Plus” and “Minus” buttons. Tap next for AUX=XX and adjust. Tap button twice to finish and save.
21. GPS Interface
Use the J4 connector harness 700708 labeled RS232 OUT TO GPS (white) and RS232 IN FROM GPS (gray). Refer
to the Manufactures GPS manual for the required pin connections on the GPS.
22. Manifold Pressure (MAP) Sensor
Screw a AN816-4D (flared to pipe thread) into the Aeroquip 303 hose to and from the bulkhead fitting an 832-4 as
shown below if not already installed from the aircraft factory MAP gauge.
PN 159934A
0-30 PSIA
AEROQUIP 303 Flex hose
7/16 UNJF
#4 fitting
DO NOT MOUNT SENSOR DIRECTLY TO ENGINE
MS-24587 FITTING
P-2 GRN FP-Sig + “C”
P-3 RED-FP PWR+5 “B”
P-1 BLK FP GND “A”
Manifold Air-pressure
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