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-A-37 Digital Input 4
M190-C-42 Analogue Voltage Input 1
M190-C-37 Analogue Temperature Input 1
M190-A-6 Lambda Narrow Input 2
M190-C-38 Analogue Temperature Input 3
M190-C-43 Knock Input 3
M190-A-21 Digital Input 1
5V ref
EFI main relay (B+)
EFI main relay (B1+)
M190-A-30 Digital Input 3
M190-C-39 Analogue Temperature Input 2
M190-A-7 Lambda Narrow Input 1
0V sensor
M190-C-47 Universal Digital Input 6
M190-A-14 Digital Input 2
GND
OEM-A
Stock ECU being replaced
2Starter signal (STA)
4Throttle position (VTA1)
5Coolant temperature (THW)
6O2 left front (OXL1)
7EGR temperature sensor
8Knock/shield (KS)
9Diagnostic test 1 (TE1)
11Sensor supply +5V (VC)
12EFI main relay (B+)
13EFI main relay (B1+)
14Neutral start switch (NSW)
16Intake air temperature (THA)
17O2 right front (OXR1)
18Sensor ground (E2)
19Vehicle speed (SPD)
20Diagnostic test 2 (TE2)
22Power ground (E1)
M190-A-2 Low Side Injector 2
M190-A-25 Low Side Injector 7
M190-B-V Low Side Injector 2
M190-A-1 Low Side Injector 3
M190-A-10 Low Side Injector 8
M190-C-36 Analogue Voltage Input 2
M190-C-17 Universal Digital Input 7
M190-C-10 Universal Digital Input 8
M190-C-22 Universal Digital Input 9
M190-C-35 Analogue Voltage Input 3
Battery constant (BATT)
OEM-B
Stock ECU being replaced
4EFI main relay control (MREL)
5Check-engine lamp (W)
6Fuel pump relay (FPR)
7A/C clutch relay (ACMG)
8Fuel pump control (FC)
11O2 right rear (OXR2)
19Stop light switch (BK)
20A/T kickdown switch (KD)
23A/C request (AC)
24O2 left rear (OXL2)
26Battery constant (BATT)
M190-C-21 Universal Digital Input 10
M190-C-27 Universal Digital Input 4
M190-C-51 Knock Input 1
M190-C-16 Low Side Ignition 1
M190-C-25 Universal Digital Input 3
M190-C-32 Universal Digital Input 2
M190-C-18 Universal Digital Input 1
M190-C-40 Universal Digital Input 5
M190-C-44 Knock Input 2
M190-C-8 Low Side Ignition 2
0V sensor
0V sensor
OEM-C
Stock ECU being replaced
1TPS idle switch (IDL)
2Igniter 1 feedback (IGF1)
3Knock sensor 1 (KNK1)
5Ignition 1 (IGT1)
6Cam sensor 2 + (G2+)
7Cam sensor 1 + (G1+)
8Crank sensor + (NE+)
10Igniter 2 feedback (IGF2)
11Knock sensor 2 (KNK2)
13Ignition 2 (IGT2)
15Cam sensor ground (G-)
16Crank sensor - (NE-)
M190-A-17 Low Side Injector 11
M190-B-T Low Side Injector 6
M190-A-40 Low Side Injector 6
M190-B-a Low Side Injector 5
M190-A-48 Low Side Injector 5
M190-A-3 Low Side Injector 1
M190-A-11 Peak Hold Injector 1
GND
M190-B-S Low Side Injector 4
M190-B-b Low Side Injector 3
M190-A-5 Low Side Injector 4
M190-A-47 Low Side Injector 9
M190-A-32 Low Side Injector 10
M190-B-U Low Side Injector 1
M190-A-12 Peak Hold Injector 2
GND
OEM-D
Stock ECU being replaced
4Cold start injector (STJ)
5ISC stepper coil 4 (ISC4)
6ISC stepper coil 3 (ISC3)
7ISC stepper coil 2 (ISC2)
8ISC stepper coil 1 (ISC1)
11Injector 2&8 (#20)
12Injector 1&7 (#10)
13Power ground (E01)
17Cold start injector 1 (STJ1)
19O2 heater 2 (HT2)
20O2 heater 1 (HT1)
21EGR solenoid
22Fuel pressure-up VSV (PR)
24Injector 3&5 (#40)
25Injector 4&6 (#30)
26Power ground (E02)
M190
M190-A
M190
1Low Side Injector 3
2Low Side Injector 2
3Low Side Injector 1
5Low Side Injector 4
6Lambda Narrow Input 2
7Lambda Narrow Input 1
10Low Side Injector 8
11Peak Hold Injector 1
12Peak Hold Injector 2
14Digital Input 2
16Sensor 5.0V C3
17Low Side Injector 11
18Sensor 0V C1
19Sensor 0V C2
20Sensor 0V C3
21Digital Input 1
25Low Side Injector 7
30Digital Input 3
32Low Side Injector 10
37Digital Input 4
38Battery Backup
40Low Side Injector 6
47Low Side Injector 9
48Low Side Injector 5
OEM-B-7 A/C clutch relay (ACMG)
OEM-B-4 EFI main relay control (MREL)
OEM-D-11 Injector 2&8 (#20)
OEM-D-20 O2 heater 1 (HT1)
OEM-A-6 O2 left front (OXL1)
OEM-A-17 O2 right front (OXR1)
OEM-B-8 Fuel pump control (FC)
OEM-D-12 Injector 1&7 (#10)
OEM-D-25 Injector 4&6 (#30)
OEM-A-20 Diagnostic test 2 (TE2)
5V ref
OEM-D-4 Cold start injector (STJ)
0V sensor
0V sensor
0V sensor
OEM-A-9 Diagnostic test 1 (TE1)
OEM-B-5 Check-engine lamp (W)
OEM-A-14 Neutral start switch (NSW)
OEM-D-22 Fuel pressure-up VSV (PR)
OEM-A-2 Starter signal (STA)
Battery Backup
OEM-D-6 ISC stepper coil 3 (ISC3)
OEM-D-21 EGR solenoid
OEM-D-8 ISC stepper coil 1 (ISC1)
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
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-D-7 ISC stepper coil 2 (ISC2)
OEM-D-19 O2 heater 2 (HT2)
GND
GND
Battery Positive 1
Battery Positive 2
Battery Positive 3
Battery Positive 4
OEM-D-17 Cold start injector 1 (STJ1)
OEM-D-5 ISC stepper coil 4 (ISC4)
OEM-D-24 Injector 3&5 (#40)
OEM-B-6 Fuel pump relay (FPR)
GND
GND
GND
GND
M190-C
M190
8Low Side Ignition 2
10Universal Digital Input 8
14Sensor 0V A1
15Sensor 0V A2
16Low Side Ignition 1
17Universal Digital Input 7
18Universal Digital Input 1
21Universal Digital Input 10
22Universal Digital Input 9
23Sensor 0V B1
25Universal Digital Input 3
27Universal Digital Input 4
30Sensor 0V B2
32Universal Digital Input 2
35Analogue Voltage Input 3
36Analogue Voltage Input 2
37Analogue Temperature Input 1
38Analogue Temperature Input 3
39Analogue Temperature Input 2
40Universal Digital Input 5
42Analogue Voltage Input 1
43Knock Input 3
44Knock Input 2
47Universal Digital Input 6
51Knock Input 1
OEM-C-13 Ignition 2 (IGT2)
OEM-B-20 A/T kickdown switch (KD)
0V sensor
0V sensor
OEM-C-5 Ignition 1 (IGT1)
OEM-B-19 Stop light switch (BK)
OEM-C-8 Crank sensor + (NE+)
OEM-C-1 TPS idle switch (IDL)
OEM-B-23 A/C request (AC)
0V sensor
OEM-C-6 Cam sensor 2 + (G2+)
OEM-C-2 Igniter 1 feedback (IGF1)
0V sensor
OEM-C-7 Cam sensor 1 + (G1+)
OEM-B-24 O2 left rear (OXL2)
OEM-B-11 O2 right rear (OXR2)
OEM-A-5 Coolant temperature (THW)
OEM-A-7 EGR temperature sensor
OEM-A-16 Intake air temperature (THA)
OEM-C-10 Igniter 2 feedback (IGF2)
OEM-A-4 Throttle position (VTA1)
OEM-A-8 Knock/shield (KS)
OEM-C-11 Knock sensor 2 (KNK2)
OEM-A-19 Vehicle speed (SPD)
OEM-C-3 Knock sensor 1 (KNK1)
SP-14V · 7 pins
SP-0V · 11 pins
SP-GND · 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.
73 / 73 connections
Columns ▾
Lengths need a layout. Add bundles in Layout.
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