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
MS3PROMINI-A-12 Injector out H
MS3PROMINI-A-5 Injector out A
MS3PROMINI-A-6 Injector out B
MS3PROMINI-A-7 Injector out C
GND
MS3PROMINI-A-32 CMP+
MS3PROMINI-A-17 Spark out A
MS3PROMINI-A-18 Spark out B
MS3PROMINI-A-19 Spark out C
MS3PROMINI-A-3 PWM out 1 / Idle
MS3PROMINI-A-4 Fuel pump out
MS3PROMINI-A-8 Injector out D
MS3PROMINI-A-9 Injector out E
GND
0V sensor
MS3PROMINI-A-30 CKP+
GND
OEM-B74
Stock ECU being replaced
1Injector 3 (#30)
2Injector 4 (#40)
3Injector 5 (#50)
4Injector 6 (#60)
9ETCS-i ground (ME01)
10Cam position (G2)
11Ignition 1 (IGT, cyl 1&6)
12Ignition 2 (IGT2, cyl 5&2)
13Ignition 3 (IGT3, cyl 3&4)
17VVT-i OCV - (OCV-)
18VVT-i OCV + (OCV+)
19ETCS-i clutch - (CL-)
20ETCS-i clutch + (CL+)
21Power ground (E01)
22Crank/cam sensor return (NE-)
23Crank position (NE+)
31Power ground (E02)
5V ref
MS3PROMINI-A-10 Injector out F
MS3PROMINI-A-11 Injector out G
MS3PROMINI-A-13 Analog in 1
MS3PROMINI-A-26 CLT in
MS3PROMINI-A-28 TPS in
MS3PROMINI-A-15 Analog in 3
GND
0V sensor
0V sensor
MS3PROMINI-A-27 IAT in
MS3PROMINI-A-14 Analog in 2
MS3PROMINI-A-16 Analog in 4
OEM-B75
Stock ECU being replaced
2Sensor power (VC)
5Injector 1 (#10)
6Injector 2 (#20)
9Manifold pressure (PIM)
14Coolant temperature (THW)
15Accelerator pedal 1 (VPA)
16Accelerator pedal 2 (VPA2)
17Power ground (E1)
18Sensor ground (E2)
19MAF ground (EVG)
22Intake air temperature (THA)
23Throttle position 1 (VTA)
24Throttle position 2 (VTA2)
MS3PROMINI-A-29 Digital switched in 1 / Flex fuel
MS3PROMINI-A-35 Digital frequency in 2 (Hall)
OEM-B76
Stock ECU being replaced
5No.2 speed sensor (SP2+)
11No.2 speed sensor return (SP2-)
MS3PROMINI-A-34 Digital frequency in 1 (Hall)
OEM-B77
Stock ECU being replaced
25No.1 speed sensor (SPD)
ETCS-i power (+BM)
EFI main relay power (+B2)
EFI main relay power (+B)
0V sensor
OEM-B78
Stock ECU being replaced
7ETCS-i power (+BM)
8EFI main relay power (+B2)
16EFI main relay power (+B)
22Switch ground (EC)
OEM-B79
Stock ECU being replaced
MS3PROMINI
MS3PROMINI-A
MS3PROMINI
112V+ switched power in
2+5V VREF out
3PWM out 1 / Idle
4Fuel pump out
5Injector out A
6Injector out B
7Injector out C
8Injector out D
9Injector out E
10Injector out F
11Injector out G
12Injector out H
13Analog in 1
14Analog in 2
15Analog in 3
16Analog in 4
17Spark out A
18Spark out B
19Spark out C
21Sensor ground
22Power ground
23Power ground
26CLT in
27IAT in
28TPS in
29Digital switched in 1 / Flex fuel
30CKP+
32CMP+
34Digital frequency in 1 (Hall)
35Digital frequency in 2 (Hall)
12V+ switched power in
5V ref
OEM-B74-17 VVT-i OCV - (OCV-)
OEM-B74-18 VVT-i OCV + (OCV+)
OEM-B74-2 Injector 4 (#40)
OEM-B74-3 Injector 5 (#50)
OEM-B74-4 Injector 6 (#60)
OEM-B74-19 ETCS-i clutch - (CL-)
OEM-B74-20 ETCS-i clutch + (CL+)
OEM-B75-5 Injector 1 (#10)
OEM-B75-6 Injector 2 (#20)
OEM-B74-1 Injector 3 (#30)
OEM-B75-9 Manifold pressure (PIM)
OEM-B75-23 Throttle position 1 (VTA)
OEM-B75-16 Accelerator pedal 2 (VPA2)
OEM-B75-24 Throttle position 2 (VTA2)
OEM-B74-11 Ignition 1 (IGT, cyl 1&6)
OEM-B74-12 Ignition 2 (IGT2, cyl 5&2)
OEM-B74-13 Ignition 3 (IGT3, cyl 3&4)
0V sensor
GND
GND
OEM-B75-14 Coolant temperature (THW)
OEM-B75-22 Intake air temperature (THA)
OEM-B75-15 Accelerator pedal 1 (VPA)
OEM-B76-5 No.2 speed sensor (SP2+)
OEM-B74-23 Crank position (NE+)
OEM-B74-10 Cam position (G2)
OEM-B77-25 No.1 speed sensor (SPD)
OEM-B76-11 No.2 speed sensor return (SP2-)
SP-GND · 7 pins
SP-0V · 6 pins
SP-14V · 5 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.
41 / 41 connections
Columns ▾
Lengths need a layout. Add bundles in Layout.
Not set yet: signal, colour, stripe, ident.
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