Heres a list of the pinouts for the Magnetti Marelli IAW 5NF ECU, which is used in the 1.6 16v Petrol variant.
'A' Connector (Vehicle-side Wiring)
1 Not connected
2 Accelerator pedal sensor supply
3 Accelerator pedal sensor 2 supply/air conditioning pressure switch
4 Not connected
5 Air conditioning pressure switch
6 Not connected
7 Minimum oil pressure signal
8 Not connected
9 Not connected
10 Serial line K
11 Fiat CODE line
12 Key on and supply controlled by ignition (15/54)
13 Not connected
14 Fan 1 engagement request
15 Accelerator pedal 2 sensor/air conditioning pressure switch earth
16 Direct battery +12V
17 Cruise Control management (optional)
18 Not connected
19 Not connected
20 Two-way CAN line (LOW)
21 Not connected
22 Not connected
23 Not connected
24 Not connected
25 Not connected
26 Air conditioning engagement request
27 Not connected
28 Not connected
29 Key on and supply controlled by ignition (15/54)
30 Not connected
31 Not connected
32 Not connected
33 Cruise Control management (optional)
34 Brake pedal switch
35 Brake pedal switch
36 Two-way CAN line (LOW)
37 Not connected
38 Not connected
39 Not connected
40 Accelerator pedal potentiometer 2 signal
41 Cruise Control management (optional)
42 Accelerator pedal potentiometer 1 signal
43 Not connected
44 Not connected
45 Not connected
46 Accelerator pedal sensor earth 1
47 Not connected
48 Not connected
49 Not connected
50 Clutch pedal switch signal
51 Two-way CAN line (HIGH)
52 Two-way CAN line (HIGH)
53 Not connected
54 Not connected
55 Fan low speed engagement
56 Not connected
57 Not connected
58 System failure signal output
59 Fan high speed engagement
60 Not connected
61 Not connected
62 Injection system relay feed
63 Not connected
64 Air conditioning engagement
'B' Connector (Engine-side Wiring)
1 Coil 4 operation
2 Not connected
3 Coil 3 operation
4 Not connected
5 Engine crankcase earth
6 Engine crankcase earth
7 Absolute pressure and timing sensor earth
8 Not connected
9 Rpm / TDC sensor positive
10 Not connected
11 Not connected
12 Not connected
13 Absolute pressure and timing sensor power supply (+5V)
14 Not connected
15 DBW supply (motorized throttle ( (+5V)
16 Not connected
17 Coil 1 operation
18 Not connected
19 Coil 2 operation
20 Not connected
21 Engine crankcase earth
22 Engine crankcase earth
23 Rpm/TDC sensor negative
24 Timing sensor signal
25 Not connected
26 Not connected
27 Not connected
28 Not connected
29 Not connected
30 Motorized throttle 2 sensor signal
31 Absolute pressure sensor signal
32 Upstream Lambda heater
33 Cylinder 4 injector operation
34 Cylinder 2 injector operation
35 Motorized throttle 1 sensor earth
36 Coolant temperature sensor earth
37 Not connected
38 Not connected
39 Not connected
40 Not connected
41 Detonation sensor positive
42 Downstream Lambda sensor '+' signal
43 Upstream Lambda sensor '+' signal
44 Motorized throttle 1 sensor signal
45 Coolant temperature signal
46 Not connected
47 Not connected
48 Detonation sensor negative
49 Cylinder 3 injector operation
50 Cylinder 1 injector operation
51 Fuel vapour recovery solenoid valve operation
52 DBW motor negative (motorized throttle)
53 Not connected
54 Not connected
55 Not connected
56 Not connected
57 DBW motor positive (motorized throttle)
58 Downstream Lambda sensor '-' signal
59 Not connected
60 Upstream Lambda sensor '-' signal
61 Not connected
62 Not connected
63 Air temperature signal
64 Downstream Lambda heater
