Not confident with automotive wiring? Have a professional harness builder or tuner do it, or check your work before first power-up. A wiring mistake can damage the ECU, the engine or the car, or start a fire.
100%
Stock ECU being replaced
KV12-B-2 Injection Channel 2
KV12-B-1 Injection Channel 1
KV12-B-3 Injection Channel 3
GND
OEM-A
Stock ECU being replaced
11Injectors 2 & 6 (No.20)
12Injectors 1 & 4 (No.10)
25Injectors 3 & 5 (No.30)
26Power ground (E01/E02)
KV12-C-3 Analog Input Channel 2
KV12-C-4 Analog Input Channel 3
0V sensor
KV12-C-2 Analog Input Channel 1
OEM-B
Stock ECU being replaced
4Coolant temp (THW)
6Primary O2 sensor (OX1)
9Sensor ground (E1)
11Throttle position sensor (VTA)
KV12-C-27 Digital Input 1
KV12-C-5 Analog Input Channel 4
KV12-D-9 EFI Relay Output (Low Side 200mA)
KV12-D-11 Knock 1 +
KV12-C-28 Digital Input 2
KV12-C-29 Digital Input 3
KV12-C-30 Digital Input 4
EFI main relay power (+B)
EFI main relay power (second feed) (+B1)
KV12-C-31 Digital Input 5
OEM-D
Stock ECU being replaced
2Karman-vortex AFM signal (KS)
3Intake air temp (THA)
4EFI main relay control (M-REL)
5Knock sensor 1 (KNK1)
9Vehicle speed sensor (SPD)
10A/C compressor request (A/C)
11Starter signal (STA)
12EFI main relay power (+B)
13EFI main relay power (second feed) (+B1)
22Neutral start switch (NSW)
KV12
KV12-A
KV12
19ECU Ground
GND
KV12-B
KV12
1Injection Channel 1
2Injection Channel 2
3Injection Channel 3
9ECU Ground
34ECU Ground
OEM-A-12 Injectors 1 & 4 (No.10)
OEM-A-11 Injectors 2 & 6 (No.20)
OEM-A-25 Injectors 3 & 5 (No.30)
GND
GND
KV12-C
KV12
1ECU Ground
2Analog Input Channel 1
3Analog Input Channel 2
4Analog Input Channel 3
5Analog Input Channel 4
17Analog Sensor 0V Reference
25Analog Sensor 0V Reference
26ECU Ground
27Digital Input 1
28Digital Input 2
29Digital Input 3
30Digital Input 4
31Digital Input 5
GND
OEM-B-11 Throttle position sensor (VTA)
OEM-B-4 Coolant temp (THW)
OEM-B-6 Primary O2 sensor (OX1)
OEM-D-3 Intake air temp (THA)
0V sensor
0V sensor
GND
OEM-D-2 Karman-vortex AFM signal (KS)
OEM-D-9 Vehicle speed sensor (SPD)
OEM-D-10 A/C compressor request (A/C)
OEM-D-11 Starter signal (STA)
OEM-D-22 Neutral start switch (NSW)
KV12-D
KV12
1ECU 14V Supply
2Auxiliary Output 13-16 14V Supply
9EFI Relay Output (Low Side 200mA)
11Knock 1 +
15Ignition Switch Input
20Auxiliary Output 9-12 14V Supply
ECU 14V Supply
Auxiliary Output 13-16 14V Supply
OEM-D-4 EFI main relay control (M-REL)
OEM-D-5 Knock sensor 1 (KNK1)
NEW-KEYON
Auxiliary Output 9-12 14V Supply
SP-GND · 7 pins
SP-0V · 4 pins
SP-14V · 6 pins
◯New feed: NEW-KEYON
Press enter or space to select a node. You can then use the arrow keys to move the node around. Press delete to remove it and escape to cancel.
Press enter or space to select an edge. You can then press delete to remove it or escape to cancel.
29 / 29 connections
Columns ▾
Lengths need a layout. Add bundles in Layout.
Not set yet: signal, colour, stripe, ident.
| Wire | From | To | Signal | Gauge | Colour | Stripe | Ident | Flags | |
|---|---|---|---|---|---|---|---|---|---|
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — |