Ecm Signal Data - Desert Aircraft DA 100 EFI Owner's Manual

DESERT AIRCRAFT OWNER'S MANUAL HFEDCN0054 Rev G
5. Signal Inputs/Outputs for ECM:
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
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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.
Table II: Main ECM 24 Pin Connector
13
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