Installation Manual
UL
POWER
UL390i UL390i
S
390i
SA
MI 390A01 Revision No: 3
Date:
2014-09-15
Page:
42
of
69
1.
Blue shrink sleeve : Battery - / Put all 5 wires together
2.
Red shrink sleeve : B / Put all 6 wires together to a switch, install a fuse 20A and use a
wire from minimum 2.5mm² (14AWG)
3.
Green shrink sleeve : “+” and “-“ to optional fuel pump relay
4.
Brown shrink sleeve : Ignition switches : white/blue and white/white to ignition switch coil 1
white/blue and white/red to ignition switch coil 2
Attention
:
Open contact = coil ON !
Closed contact = coil OFF !
5.
Grey shrink sleeve : 3 wires :
white/white : RPM signal (2 pulses/ rev. 0 – 12V)
white/blue : Fuel consumption (Injector puls).
Output is a duty cycle. 100% is equal to 72l/Hr
white/red : fuel consumption (pulses/litre)
72l/Hr = 170Hz (170 pulses/sec)
6.
Yellow shrink sleeve : 4 wires :
white/green : Common (-)
white/red : warning signal in case of ECU over temperature (not used)
white/blue : warning signal in case of battery low (<12.5V)
white/white : check light :
When the engine run correctly, the led doesn’t light up.
When there is a problem with one of the following sensors, the led light up.
a) Oil temperature sensor b) Inlet air temperature sensor c) Throttle position sensor
d) Altitude sensor (Integrated in ECU)
7.
Ground for cable shielding
8.
PC Connector for data transmission
9.
Connect to the ECU
ECU Wiring loom cockpit
