Pin |
ECU Pin |
Function |
Pin |
ECU Pin |
Function |
101 |
Injector 1 |
Injection |
31 |
nc |
|
102 |
nc |
|
32 |
Aux 7 |
CE Light (S14 SR20DET) |
103 |
Injector 3 |
Injection |
33 |
Aux 8 |
Cat Light / Engine Fan (High) (S14 SR20DET) |
104 |
nc |
|
34 |
DI 1 |
Power Steer Switch (S14 SR20DET) |
105 |
nc |
|
35 |
An Volt 2 |
MAP (Factory Sensor) (S14 SR20DET) |
106 |
Injector 5 (Aux) |
ISC Solenoid |
36 |
nc |
|
107 |
Ground |
|
37 |
nc |
|
108 |
Ground |
|
38 |
An Volt 5 |
TPS |
109 |
+12V constant |
ISC Flywheeling |
39 |
nc |
|
110 |
Injector 2 |
Injection |
40 |
nc |
|
111 |
nc |
|
41 |
Trig 2 |
Trig 2 |
112 |
Injector 4 |
Injection |
42 |
Trig 1 |
Trig 1 |
113 |
Aux 5 |
VTC Cam Solenoid (S14 SR20DET) |
43 |
DI 3 |
Start Signal |
114 |
nc |
|
44 |
nc |
|
115 |
Ground (O2 Heater) |
|
45 |
12V Ignition Sw Input |
Controls Pin 16 |
116 |
Ground |
|
46 |
DI 4 |
A/C In |
|
47 |
nc |
|
||
1 |
Ignition 1 |
Ignition |
48 |
+5V Out |
|
2 |
Ignition 2 |
Ignition |
49 |
+14V ECCS Relay |
ECU Power |
3 |
Ignition 3 |
Ignition |
50 |
Ground (Signal) |
|
4 |
Injector 5 (Aux) |
ISC Solenoid |
51 |
Trig 2 |
Trig 2 |
5 |
Aux 1 |
Boost Solenoid (S13 CA18DET Only) |
52 |
Trig 1 |
Trig 1 |
6 |
Injector 6 (Aux) |
A/C Out |
53 |
DI 2 |
Vehicle Speed |
7 |
Aux 2 |
Tacho |
54 |
nc |
|
8 |
Aux 3 |
Intake Runner Control (S13 CA18DET) |
55 |
An Temp 2 |
Factory IAT (some S13 CA18DET) |
9 |
Injector 6 (Aux) |
A/C Out |
56 |
nc |
|
10 |
Ground |
|
57 |
nc |
|
11 |
Ignition 3 or 4 (via J1) |
Ignition |
58 |
nc |
|
12 |
Ignition 4 |
Ignition |
59 |
+14V ECCS Relay |
ECU Power |
13 |
nc |
|
60 |
Ground (Signal) |
|
14 |
nc |
|
On Board MAP |
An Volt 3 |
MAP |
15 |
nc |
|
Expansion 1 |
Ground (Signal) |
|
16 |
ECCS Relay Control |
Pulls to ground when Ign is on |
Expansion 2 |
+5V Out |
|
17 |
nc |
|
Expansion 3 |
DI 5 |
|
18 |
Aux 4 |
Fuel Pump Relay |
Expansion 4 |
DI 6 |
|
19 |
Aux 3 |
Engine Fan (Low Speed) (S14 SR20DET) |
Expansion 5 |
DI 7 |
|
20 |
Ground |
|
Expansion 6 |
An Volt 6 |
|
21 |
nc |
|
Expansion 7 |
An Temp 4 |
|
22 |
nc |
|
Expansion 8 |
An Temp 3 |
|
23 |
Knock 1 |
Knock |
Expansion 9 |
Ign 5 |
|
24 |
nc |
nc |
Expansion 10 |
Ign 6 |
|
25 |
Aux 6 |
Boost Solenoid (S14 SR20DET) |
Expansion 11 |
Ign 7 |
|
26 |
Ground (AFM) |
|
Expansion 12 |
Ign 8 |
|
27 |
An Volt 4 |
AFM Signal |
Expansion 13 |
An Volt 8 |
|
28 |
An Temp 1 |
ECT |
Expansion 14 |
An Volt 9 |
|
29 |
An Volt 1 |
Oxy Signal |
Expansion 15 |
An Volt 10 |
|
30 |
Ground (Signal) |
|
Expansion 16 |
An Volt 11 |
|
Note: Aux 3 is exposed on two pins (8 & 19) and has a different function depending on the vehicle.
Note: Injector Drives 7 and 8 aren't exposed and don't have the hardware required to drive Injectors.