Alfa Romeo 159 Training Material page 169

ENGINE
I
NPUT PARAMETERS
E
LECTRICAL QUANTITY
Key-on
Voltage to pin B-28
Cylinder position check
The ECU recognises the firing cylinder and controls the injection sequence to the necessary cylinder during each
engine revolution.
I
NPUT PARAMETERS
E
LECTRICAL QUANTITY
Engine speed sensor
Frequency to pins A-27 and A-
12
Timing sensor
Frequency to pins A-20 and A-
50
Traccia Didattica Alfa 159-en-ridotta
ALFA 159 TRAINING MATERIAL
C
ONTROLLER
L
OGIC
EDC-16C39
Regardless of engine speed, the
ECU:
powers the
pump at key-on
cuts off auxiliary pump power
if the engine is not cranked
up within a few seconds.
C
ONTROLLER
L
OGIC
EDC-16C39
The ECU recognises
cylinder and controls the injection
sequence to the necessary cylinder
during each engine revolution.
169/318
auxiliary fuel
the firing
© 2004 Fiat Auto S.p.A. - All rights reserved
Fiat Auto S.p.A.
After Sales Training
O
UTPUT PARAMETERS
E
LECTRICAL QUANTITY
Fuel pump enable
Voltage to pin B-91
O
UTPUT PARAMETERS
E
LECTRICAL QUANTITY
Injectors
Voltage to pins:
A-16, A-47; A-2, A-31;
A-1, A-46; A-17, A-33
A-18, A- 48 (5 cylinder)