User manual

Technical Documentation - Communication and connection manual: ECU-AIM loggers – Version 1.26
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EFI USA 2.1 – 55 Pins Deutsch connector pinout
The ECU is equipped with a 55 pins Deutsch connector, shown below and its pinout is
described in the following table.
Pin Description Pin Description
A INJ1 f Cam
B INJ2 g Oil P
C INJ3 h Boost sw
D INJ4 i Beacon
E Pump j Lambda
F Duty1 k Mixture
G Duty2 m Fuel T
H Heater n Air T
J Vref p Water T
K Vref q Oil T
L TXD
r Tach
M ECU 12v
s IGN1
N FCM/DC2 t IGN2
P Lamp/Dc1 u IGN3
R INJ6 v IGN4
S INJ7 w IGN5/Step1+
T INJ8 x IGN6/Step1-
U INJ5 y IGN7/Step2+
V SW 1 z IGN8/Step2-
W SW2
AA GND
X MAP BB GND
Y Fuel P CC GND
Z Wheel DD GND
a Wheel2 EE GND
b TPS FF GND
c NGK/Knock GG GND
d Crank HH GND
e EBP
EFI_USA – 2.1
ECU_1 EFI_RPM RPM