Ecm Signal Data - Desert Aircraft DA50 EFI Owner's Manual

DA 50 EFI OWNER'S MANUAL HFEDCN0374 REV C
5. Signal Inputs/Outputs for ECM
Table II: ECM 24 Pin Output Connector
Pin Signal
1 NC
2 NC
3 NC
4 NC
5 NC
6 IGN PWR
7 NC
8 IGN GND
9 NC
10 IGN SIGNAL
11 SERVO POWER
12 CRANK PWR
13 SERVO GND
14 CRANK GND
15 SERVO SIGNAL
16 CRANK SIGNAL
17 CHT (+)
18 CHT (-)
19 MAT (+)
20 MAT (-)
21 NC
22 NC
23 INJECTOR GND
24 INJECTOR
POWER
Description
Not Connected
Not Connected
Not Connected
Not Connected
Not Connected
+6V power supply output from the Engine Control Unit for
the ignition power.
Not Connected
Ignition Ground
Not Connected
Modified integrator filtered output.
+6V power supply output from the Engine Control Unit for
the throttle servo power.
+5V power supply output from the Engine Control Unit for
the crank sensor.
Throttle servo ground.
Crank sensor ground.
Throttle position with logic-level output. A Pulse Width
Modulated (PWM) signal at nominally 100Hz with ON time
ranging from 900µs to 2100µs corresponding to throttle
position. This pin has an 8mA draw.
+5V logic-level digital input. Bi-polar type.
Cylinder head temperature sensor. Variable resistance
thermistor.
Cylinder head temperature sensor reference.
Manifold Air Temperature sensor. Variable resistance
thermistor.
Manifold Air Temperature sensor reference.
Not Connected
Not Connected
Injector Switching to Ground. Frequency matches engine
RPM.
Battery voltage.
See HFE "Released Documents" folder for latest revision.
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