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
M800-A-21 INJ3
M800-A-22 INJ4
M800-A-27 INJ5
M800-A-28 INJ6
GND
M800-B-2 Cam Sync Timing Input
M800-A-3 IGN1
M800-A-4 IGN2
M800-A-5 IGN3
M800-A-18 AUX1
M800-A-1 AUX2
M800-A-23 AUX3
M800-A-24 AUX4
GND
0V sensor
M800-B-1 Crank Reference Timing Input
M800-B-11 Digital Input 4
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+)
25Igniter verification (IGF)
31Power ground (E02)
5V ref
M800-A-33 AUX7
M800-A-19 INJ1
M800-A-20 INJ2
M800-A-14 AV1
M800-B-20 Analog Voltage Input 6
M800-B-21 AV7
M800-B-3 Analog Temperature Input 1
M800-A-15 Analog Voltage Input 2
M800-A-17 Analog Voltage Input 4
GND
0V sensor
0V sensor
M800-B-22 AV8
M800-B-4 Analog Temperature Input 2
M800-A-16 Analog Voltage Input 3
M800-A-25 Analog Voltage Input 5
OEM-B75
Stock ECU being replaced
2Sensor power (VC)
4O2 sensor heater (HT)
5Injector 1 (#10)
6Injector 2 (#20)
9Manifold pressure (PIM)
10Mass air flow (VG)
12O2 sensor (OX)
14Coolant temperature (THW)
15Accelerator pedal 1 (VPA)
16Accelerator pedal 2 (VPA2)
17Power ground (E1)
18Sensor ground (E2)
19MAF ground (EVG)
21A/T 1st-gear indicator (L)
22Intake air temperature (THA)
23Throttle position 1 (VTA)
24Throttle position 2 (VTA2)
M800-A-34 AUX8
M800-A-29 INJ7
M800-A-30 INJ8
M800-B-10 Digital Input 3
M800-B-9 Digital Input 2
M800-B-5 Analog Temperature Input 3
OEM-B76
Stock ECU being replaced
1A/T shift solenoid 1 (S1)
2A/T shift solenoid 2 (S2)
3A/T shift solenoid 3 (S3)
5No.2 speed sensor (SP2+)
11No.2 speed sensor return (SP2-)
17A/T oil temperature (OIL)
M800-A-31 AUX5
M800-B-8 Digital Input 1
OEM-B77
Stock ECU being replaced
13A/C clutch relay (ACMG)
25No.1 speed sensor (SPD)
ETCS-i power (+BM)
EFI main relay power (+B2)
M800-A-32 AUX6
EFI main relay power (+B)
0V sensor
OEM-B78
Stock ECU being replaced
7ETCS-i power (+BM)
8EFI main relay power (+B2)
10EFI main relay control (M-REL)
16EFI main relay power (+B)
22Switch ground (EC)
OEM-B79
Stock ECU being replaced
M800
M800-A
M800
1AUX2
25V Engine Sensor Supply
3IGN1
4IGN2
5IGN3
10GND Battery Negative
11GND Battery Negative
14AV1
15Analog Voltage Input 2
16Analog Voltage Input 3
17Analog Voltage Input 4
18AUX1
19INJ1
20INJ2
21INJ3
22INJ4
23AUX3
24AUX4
25Analog Voltage Input 5
26VBAT Battery Positive
27INJ5
28INJ6
29INJ7
30INJ8
31AUX5
32AUX6
33AUX7
34AUX8
OEM-B74-18 VVT-i OCV + (OCV+)
5V ref
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)
GND
GND
OEM-B75-9 Manifold pressure (PIM)
OEM-B75-15 Accelerator pedal 1 (VPA)
OEM-B75-23 Throttle position 1 (VTA)
OEM-B75-16 Accelerator pedal 2 (VPA2)
OEM-B74-17 VVT-i OCV - (OCV-)
OEM-B75-5 Injector 1 (#10)
OEM-B75-6 Injector 2 (#20)
OEM-B74-1 Injector 3 (#30)
OEM-B74-2 Injector 4 (#40)
OEM-B74-19 ETCS-i clutch - (CL-)
OEM-B74-20 ETCS-i clutch + (CL+)
OEM-B75-24 Throttle position 2 (VTA2)
VBAT Battery Positive
OEM-B74-3 Injector 5 (#50)
OEM-B74-4 Injector 6 (#60)
OEM-B76-2 A/T shift solenoid 2 (S2)
OEM-B76-3 A/T shift solenoid 3 (S3)
OEM-B77-13 A/C clutch relay (ACMG)
OEM-B78-10 EFI main relay control (M-REL)
OEM-B75-4 O2 sensor heater (HT)
OEM-B76-1 A/T shift solenoid 1 (S1)
M800-B
M800
1Crank Reference Timing Input
2Cam Sync Timing Input
3Analog Temperature Input 1
4Analog Temperature Input 2
5Analog Temperature Input 3
8Digital Input 1
9Digital Input 2
10Digital Input 3
11Digital Input 4
140V Comms Reference
150V Auxiliary Sensor Supply
160V Engine Sensor Supply
20Analog Voltage Input 6
21AV7
22AV8
OEM-B74-23 Crank position (NE+)
OEM-B74-10 Cam position (G2)
OEM-B75-14 Coolant temperature (THW)
OEM-B75-22 Intake air temperature (THA)
OEM-B76-17 A/T oil temperature (OIL)
OEM-B77-25 No.1 speed sensor (SPD)
OEM-B76-11 No.2 speed sensor return (SP2-)
OEM-B76-5 No.2 speed sensor (SP2+)
OEM-B74-25 Igniter verification (IGF)
0V sensor
0V sensor
0V sensor
OEM-B75-10 Mass air flow (VG)
OEM-B75-12 O2 sensor (OX)
OEM-B75-21 A/T 1st-gear indicator (L)
SP-GND · 7 pins
SP-0V · 8 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.
54 / 54 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 | |
|---|---|---|---|---|---|---|---|---|---|
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — |