Ecu Pinout : 1990 - 1995 Nissan 300ZX

1 Cylinder No 1 spark
2 Cylinder No 2 spark
3 Cylinder No 3 spark
4 AAC Valve
5 Signal to Automatic Transmission
6 Radiator Fan Sub Relay
7 Tachometer Signal 
8 AIV control solenoid valve
9 Signal from Air Conditioning
10 Ingnition Ground
11 Cylinder No 4 spark
11 Cylinder No 4 spark
12 Cylinder No 5 spark
13 Cylinder No 6 spark
14 Signal to Automatic Transmission
15 Signal to Automatic Transmission
16 ECCS Relay Coil Ground
17 NC
18 Fuel Pump Relay
19 Radiator Fan Relay
20 Ingnition Ground
21 Diagnostics Receive Data
22 Diagnostics Send Data
23 Knock Sensor
24 NC
25 Boost Control Valve
26 Mass Air Flow Sensor Ground
27 Mass Air Flow Sensor -- Signal : Analog
28 Engine Coolant Temperature Sensor 
29 O2 Sensor Signal (Right side)
30 Sensor Ground 
31 Diagnostic Clock
32 Check Engine Light
33 F.I.C.D. Solenoid Valve
34 Power Steering Oil Pressure Switch
35 Fuel Pump Control Unit
36 Fuel Temperature Sensor
37 NC
38 Throttle Position Sensor 
39 NC
40 Signal to Automatic Transmission
41 Crank Angle Sen 120 deg input
42 Crank Angle Sen 1 deg input
43 Start Switch
44 Neutral Switch
45 Ignition Switch
46 Air Conditioned Switch
47 Check Signal on Diagnostic
48 Throttle Position Sensor
49 Control Unit 12 Volt Power Supply
50 Ground
51 Crank Angle Sen 120 deg input
52 Crank Angle Sen 1 deg input
53 Vehicle Speed Sensor
54 Throttle Valve Switch (idle position)
55 O2 Sensor Signal (left side)
56 Signal to Automatic Transmission
57 Throttle Valve Switch (idle position)
58 Battery Power Supply
59 Control Unit 12 Volt Power Supply
60 Engine Ground
101 Injector # 1
102 EGR
103 Injector # 3
104 Fuel Pump 12 Volt Control Output
105 Injector # 5
106 NC
107 Injector Ground
108 Injector Ground
109 Injector Power 12 Volt Constant
110 Injector # 2
111 NC
112 Injector # 4 Speed
113 Variable Timing Control Solenoid Ground
114 Injector # 6 Speed
115 Oxygen Sensor Heater
116 Power Ground (Engine Control Module)