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
M190-C-51 Knock Input 1
Ignition power 2
Ignition power 1
GND
GND
M190-C-32 Universal Digital Input 2
M190-C-18 Universal Digital Input 1
GND
GND
M190-A-40 Low Side Injector 6
11–12 no data
M190-C-1 Low Side Ignition 4
M190-C-2 Low Side Ignition 3
M190-C-8 Low Side Ignition 2
M190-C-16 Low Side Ignition 1
17 no data
M190-C-25 Universal Digital Input 3
19 no data
5V ref
22 no data
0V sensor
27 no data
29 no data
M190-C-42 Analogue Voltage Input 1
OEM-A
Stock ECU being replaced
1Knock sensor
2Ignition power 2
3Ignition power 1
4Power ground 2
5Power ground 1
6Cam position sensor (T2)
7Crank position sensor (T1)
8Logic ground 2
9Logic ground 1
10A/F sensor heater
11–12 no data
13Ignition coil 4
14Ignition coil 3
15Ignition coil 2
16Ignition coil 1
17 no data
18Vehicle speed sensor
19 no data
21Sensor voltage 1
22 no data
24Sensor ground 1
27 no data
29 no data
30MAP sensor
1 no data
M190-A-12 Peak Hold Injector 2
M190-B-U Low Side Injector 1
M190-A-3 Low Side Injector 1
M190-A-11 Peak Hold Injector 1
RLY1-R-OUT Relay contact output (switched +12 V to load)
7 no data
M190-C-37 Analogue Temperature Input 1
9 no data
M190-A-21 Digital Input 1
12 no data
M190-C-28 Analogue Voltage Input 4
14 no data
M190-B-T Low Side Injector 6
16 no data
M190-C-38 Analogue Temperature Input 3
M190-A-25 Low Side Injector 7
M190-A-10 Low Side Injector 8
22–24 no data
OEM-B
Stock ECU being replaced
1 no data
2Injector 4
3Injector 3
4Injector 2
5Injector 1
6VTEC solenoid
7 no data
8Coolant temp sensor
9 no data
11VTEC oil pressure switch
12 no data
13Alternator FR signal
14 no data
15Engine mount control solenoid
16 no data
17Intake air temp sensor
18Alternator control
21Evap canister purge valve
22–24 no data
M190-A-14 Digital Input 2
2–3 no data
M190-A-30 Digital Input 3
5–6 no data
M190-A-37 Digital Input 4
M190-C-27 Universal Digital Input 4
M190-C-40 Universal Digital Input 5
10–14 no data
16–17 no data
OEM-D
Stock ECU being replaced
1Cruise set switch
2–3 no data
4Cruise main switch
5–6 no data
7Cruise resume switch
8Brake pedal position switch
9Cruise clutch signal
10–14 no data
16–17 no data
M190-C-39 Analogue Temperature Input 2
2 no data
GND
6 no data
M190-B-V Low Side Injector 2
M190-A-48 Low Side Injector 5
10 no data
M190-C-24 CAN Bus 1 High
M190-A-5 Low Side Injector 4
M190-C-29 Analogue Voltage Input 5
M190-C-11 Analogue Voltage Input 6
M190-C-12 Analogue Voltage Input 7
M190-A-2 Low Side Injector 2
M190-B-S Low Side Injector 4
M190-A-47 Low Side Injector 9
M190-A-7 Lambda Narrow Input 1
M190-B-a Low Side Injector 5
M190-C-47 Universal Digital Input 6
23 no data
M190-C-31 CAN Bus 1 Low
M190-C-17 Universal Digital Input 7
31 no data
OEM-E
Stock ECU being replaced
1Coolant temp sensor 2
2 no data
3Logic ground 3
6 no data
7Main relay control
8A/F sensor heater relay
10 no data
11CAN H
12Radiator fan control
14Fuel tank pressure sensor
15Electrical load detector
16Power steering load detector
17Fuel pump relay
18A/C clutch relay
19Evap canister vent shut valve
20Secondary O2 sensor
21Secondary O2 heater
22Brake pedal switch
23 no data
24CAN L
28A/C switch signal
31 no data
M190
M190-A
M190
1Low Side Injector 3
2Low Side Injector 2
3Low Side Injector 1
5Low Side Injector 4
7Lambda Narrow Input 1
8Sensor 5.0V C1
10Low Side Injector 8
11Peak Hold Injector 1
12Peak Hold Injector 2
14Digital Input 2
18Sensor 0V C1
19Sensor 0V C2
20Sensor 0V C3
21Digital Input 1
25Low Side Injector 7
30Digital Input 3
37Digital Input 4
40Low Side Injector 6
47Low Side Injector 9
48Low Side Injector 5
RLY1-R-COIL- Relay coil negative (ECU low-side driver)
OEM-E-17 Fuel pump relay
OEM-B-4 Injector 2
OEM-E-12 Radiator fan control
OEM-E-20 Secondary O2 sensor
5V ref
OEM-B-21 Evap canister purge valve
OEM-B-5 Injector 1
OEM-B-2 Injector 4
OEM-D-1 Cruise set switch
0V sensor
0V sensor
0V sensor
OEM-B-11 VTEC oil pressure switch
OEM-B-18 Alternator control
OEM-D-4 Cruise main switch
OEM-D-7 Cruise resume switch
OEM-A-10 A/F sensor heater
OEM-E-19 Evap canister vent shut valve
OEM-E-8 A/F sensor heater relay
M190-B
M190
aLow Side Injector 5
cBattery Negative 6
GBattery Negative 1
HBattery Positive 1
JBattery Positive 2
KBattery Positive 3
LBattery Positive 4
SLow Side Injector 4
TLow Side Injector 6
ULow Side Injector 1
VLow Side Injector 2
WBattery Negative 2
XBattery Negative 3
YBattery Negative 4
ZBattery Negative 5
OEM-E-21 Secondary O2 heater
GND
GND
Battery Positive 1
Battery Positive 2
Battery Positive 3
Battery Positive 4
OEM-E-18 A/C clutch relay
OEM-B-15 Engine mount control solenoid
OEM-B-3 Injector 3
OEM-E-7 Main relay control
GND
GND
GND
GND
M190-C
M190
1Low Side Ignition 4
2Low Side Ignition 3
8Low Side Ignition 2
11Analogue Voltage Input 6
12Analogue Voltage Input 7
14Sensor 0V A1
15Sensor 0V A2
16Low Side Ignition 1
17Universal Digital Input 7
18Universal Digital Input 1
23Sensor 0V B1
24CAN Bus 1 High
25Universal Digital Input 3
27Universal Digital Input 4
28Analogue Voltage Input 4
29Analogue Voltage Input 5
30Sensor 0V B2
31CAN Bus 1 Low
32Universal Digital Input 2
35Analogue Voltage Input 3
37Analogue Temperature Input 1
38Analogue Temperature Input 3
39Analogue Temperature Input 2
40Universal Digital Input 5
42Analogue Voltage Input 1
47Universal Digital Input 6
51Knock Input 1
OEM-A-13 Ignition coil 4
OEM-A-14 Ignition coil 3
OEM-A-15 Ignition coil 2
OEM-E-15 Electrical load detector
OEM-E-16 Power steering load detector
0V sensor
0V sensor
OEM-A-16 Ignition coil 1
OEM-E-28 A/C switch signal
OEM-A-7 Crank position sensor (T1)
0V sensor
OEM-E-11 CAN H
OEM-A-18 Vehicle speed sensor
OEM-D-8 Brake pedal position switch
OEM-B-13 Alternator FR signal
OEM-E-14 Fuel tank pressure sensor
0V sensor
OEM-E-24 CAN L
OEM-A-6 Cam position sensor (T2)
TPS-J-SIG Throttle position signal
OEM-B-8 Coolant temp sensor
OEM-B-17 Intake air temp sensor
OEM-E-1 Coolant temp sensor 2
OEM-D-9 Cruise clutch signal
OEM-A-30 MAP sensor
OEM-E-22 Brake pedal switch
OEM-A-1 Knock sensor
RLY1
RLY1-R
RLY1
INRelay contact input (switched +12 V)
OUTRelay contact output (switched +12 V to load)
COIL+Relay coil positive (switched +12 V)
COIL-Relay coil negative (ECU low-side driver)
SP-14V · 6 pins
OEM-B-6 VTEC solenoid
Relay coil positive (switched +12 V)
M190-A-1 Low Side Injector 3
TPS
TPS-J
TPS
GNDSensor ground
SIGThrottle position signal
VCC5V supply in
0V sensor
M190-C-35 Analogue Voltage Input 3
5V supply in
SP-GND · 12 pins
SP-14V · 9 pins
SP-5V · 4 pins
SP-0V · 10 pins
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.
76 / 76 connections
Columns ▾
Lengths need a layout. Add bundles in Layout.
Not set yet: signal, colour, stripe, ident.
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