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
GND
M190-B-V Low Side Injector 2
M190-A-3 Low Side Injector 1
M190-A-12 Peak Hold Injector 2
M190-B-a Low Side Injector 5
M190-B-b Low Side Injector 3
GND
M190-C-16 Low Side Ignition 1
M190-A-5 Low Side Injector 4
GND
M190-C-37 Analogue Temperature Input 1
M190-C-39 Analogue Temperature Input 2
0V sensor
M190-C-42 Analogue Voltage Input 1
M190-A-7 Lambda Narrow Input 1
ECU main power (from engine-electronics relay)
M190-A-11 Peak Hold Injector 1
M190-A-2 Low Side Injector 2
M190-B-U Low Side Injector 1
M190-B-S Low Side Injector 4
M190-A-48 Low Side Injector 5
0V sensor
M190-C-51 Knock Input 1
M190-C-38 Analogue Temperature Input 3
M190-A-21 Digital Input 1
M190-A-14 Digital Input 2
M190-C-36 Analogue Voltage Input 2
5V ref
M190-C-32 Universal Digital Input 2
M190-A-1 Low Side Injector 3
M190-C-2 Low Side Ignition 3
M190-A-40 Low Side Injector 6
Battery constant (+12V)
GND
GND
M190-C-8 Low Side Ignition 2
M190-C-25 Universal Digital Input 3
0V sensor
M190-C-18 Universal Digital Input 1
OEM-A
Stock ECU being replaced
1Ground (E-1)
2Injector 6 (cyl 6)
3Injector 2 (cyl 2)
4Injector 4 (cyl 4)
5Check engine light (MIL)
6Fuel pump relay control
7Ground (E-2)
8Ignition coil 2 (coil pack pin 2)
9Engine electronics relay control
10Ground (OBD1 EGR enable)
14Coolant temperature (CLT)
15EGR temperature sensor
16MAF ground
17MAF signal
20O2 sensor 1 (primary)
23ECU main power (from engine-electronics relay)
24Injector 1 (cyl 1)
25Injector 5 (cyl 5)
26Injector 3 (cyl 3)
27Idle air control valve
31EVAP canister purge valve
33Sensor ground bus
34Knock sensor 1
36Intake air temperature (IAT)
37A/C compressor switch
39A/C switch (cabin)
40Throttle position sensor 1
41TPS power (+5V)
44Camshaft position sensor (G40)
49Secondary air injection relay control
52Ignition coil 4 (coil pack pin 4)
53Idle air control valve (2nd)
54Battery constant (+12V)
55Ground (E-3)
56Ground (E-4)
60Ignition coil 3 (coil pack pin 3)
65Vehicle speed sensor (VSS)
67Crank sensor return (VR-)
68Crank position sensor (G28, VR+)
M190
M190-A
M190
1Low Side Injector 3
2Low Side Injector 2
3Low Side Injector 1
5Low Side Injector 4
7Lambda Narrow Input 1
11Peak Hold Injector 1
12Peak Hold Injector 2
14Digital Input 2
16Sensor 5.0V C3
18Sensor 0V C1
19Sensor 0V C2
20Sensor 0V C3
21Digital Input 1
38Battery Backup
40Low Side Injector 6
48Low Side Injector 5
OEM-A-49 Secondary air injection relay control
OEM-A-25 Injector 5 (cyl 5)
OEM-A-3 Injector 2 (cyl 2)
OEM-A-9 Engine electronics relay control
OEM-A-20 O2 sensor 1 (primary)
OEM-A-24 Injector 1 (cyl 1)
OEM-A-4 Injector 4 (cyl 4)
OEM-A-39 A/C switch (cabin)
5V ref
0V sensor
0V sensor
0V sensor
OEM-A-37 A/C compressor switch
Battery Backup
OEM-A-53 Idle air control valve (2nd)
OEM-A-31 EVAP canister purge valve
M190-B
M190
aLow Side Injector 5
bLow Side Injector 3
cBattery Negative 6
GBattery Negative 1
HBattery Positive 1
JBattery Positive 2
KBattery Positive 3
LBattery Positive 4
SLow Side Injector 4
ULow Side Injector 1
VLow Side Injector 2
WBattery Negative 2
XBattery Negative 3
YBattery Negative 4
ZBattery Negative 5
OEM-A-5 Check engine light (MIL)
OEM-A-6 Fuel pump relay control
GND
GND
Battery Positive 1
Battery Positive 2
Battery Positive 3
Battery Positive 4
OEM-A-27 Idle air control valve
OEM-A-26 Injector 3 (cyl 3)
OEM-A-2 Injector 6 (cyl 6)
GND
GND
GND
GND
M190-C
M190
2Low Side Ignition 3
8Low Side Ignition 2
14Sensor 0V A1
15Sensor 0V A2
16Low Side Ignition 1
18Universal Digital Input 1
23Sensor 0V B1
25Universal Digital Input 3
30Sensor 0V B2
32Universal Digital Input 2
36Analogue Voltage Input 2
37Analogue Temperature Input 1
38Analogue Temperature Input 3
39Analogue Temperature Input 2
42Analogue Voltage Input 1
51Knock Input 1
OEM-A-52 Ignition coil 4 (coil pack pin 4)
OEM-A-60 Ignition coil 3 (coil pack pin 3)
0V sensor
0V sensor
OEM-A-8 Ignition coil 2 (coil pack pin 2)
OEM-A-68 Crank position sensor (G28, VR+)
0V sensor
OEM-A-65 Vehicle speed sensor (VSS)
0V sensor
OEM-A-44 Camshaft position sensor (G40)
OEM-A-40 Throttle position sensor 1
OEM-A-14 Coolant temperature (CLT)
OEM-A-36 Intake air temperature (IAT)
OEM-A-15 EGR temperature sensor
OEM-A-17 MAF signal
OEM-A-34 Knock sensor 1
SP-14V · 6 pins
SP-GND · 12 pins
SP-0V · 11 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.
56 / 56 connections
Columns ▾
Lengths need a layout. Add bundles in Layout.
Not set yet: signal, colour, stripe, ident.
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