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
ECU power (+B2, main relay)
GND
MAXXECUSPORT-C1-J2 AIN 2 (Temperature)
MAXXECUSPORT-C1-K3 DIN 1
MAXXECUSPORT-C1-K4 DIN 2
MAXXECUSPORT-C1-E2 CAN L
MAXXECUSPORT-C1-E1 CAN H
MAXXECUSPORT-C1-A1 GPO 4
MAXXECUSPORT-C1-J3 AIN 3 (0-5V)
MAXXECUSPORT-C1-E3 GND Shield (via SP-SHD)
0V sensor
OEM-A33
Stock ECU being replaced
1ECU power (+B2, main relay)
4Power ground (EC)
12Intake air temperature (THA, in MAF)
14Starter signal (STSW2)
15Clutch switch (CLSW)
18CAN low (CANL)
19CAN high (CANH)
20Blower relay (HB)
22Mass air flow (VG)
28Shield ground (SLE2)
29MAF sensor ground (E2G)
GND
GND
GND
MAXXECUSPORT-C1-D1 WBO2 Heater-
ECU power (+B, main relay)
MAXXECUSPORT-C1-H4 HOME
MAXXECUSPORT-C1-H3 TRIGGER
MAXXECUSPORT-C1-J4 AIN 4 (0-5V)
MAXXECUSPORT-C1-E4 AIN 8 (0-5V)
0V sensor
MAXXECUSPORT-C1-E3 GND Shield (via SP-SHD)
MAXXECUSPORT-C1-E3 GND Shield (via SP-SHD)
5V ref
MAXXECUSPORT-C1-E3 GND Shield (via SP-SHD)
OEM-A34
Stock ECU being replaced
1Power ground (E03)
2Power ground (E04)
3Power ground (E05)
5A/F ratio sensor heater (HA1A)
6ECU power (+B, main relay)
14VVT cam sensor exhaust bank 1 (EV1+)
16Crank position (NE+)
20Manifold absolute pressure (PIM)
21Heated oxygen sensor (OX1B, rear)
27Crank position return (NE-)
29Shield ground (EKNK)
30Shield ground (SLE1)
34OCV power source (VCV, 5V)
35Shield ground (SLE3)
MAXXECUSPORT-C1-D4 GPO 3
MAXXECUSPORT-C1-C4 GPO 2
MAXXECUSPORT-C1-B4 GPO 1
MAXXECUSPORT-C1-B1 GPO 5
5V ref
5V ref
MAXXECUSPORT-C1-D2 AIN 6 (0-5V)
0V sensor
0V sensor
MAXXECUSPORT-C1-G2 TPS/AIN
MAXXECUSPORT-C1-A4 GPO 8/TACHO
OEM-A35
Stock ECU being replaced
11Cooling fan relay 3 (FAN1)
12Cooling fan relay 2 (FAN2)
13EFI main relay 1 (SSHUT)
17ETCS relay (MCR)
21Accelerator pedal 5V supply (VCPA)
22Accelerator pedal 5V supply (VCP2)
23Accelerator pedal position (VPA)
29Accelerator pedal ground (EPA)
30Accelerator pedal ground (EPA2)
31Accelerator pedal position 2 (VPA2)
35A/C clutch relay (AC)
MAXXECUSPORT-C1-L1 GPO 11/Motor 1-
MAXXECUSPORT-C1-L2 GPO 12/MOTOR 1+
GND
GND
MAXXECUSPORT-C1-B3 IGN 4
MAXXECUSPORT-C1-A3 IGN 2
MAXXECUSPORT-C1-K1 INJ 1
MAXXECUSPORT-C1-K2 INJ 2
MAXXECUSPORT-C1-D3 AIN 7 (0-5V)
5V ref
MAXXECUSPORT-C1-F1 CLT
MAXXECUSPORT-C1-A2 IGN 1
MAXXECUSPORT-C1-M1 INJ 3
MAXXECUSPORT-C1-M3 INJ 5
MAXXECUSPORT-C1-M2 INJ 4
MAXXECUSPORT-C1-C1 AIN 5 (0-5V)
0V sensor
MAXXECUSPORT-C1-J1 AIN 1 (temperature)
MAXXECUSPORT-C1-B2 IGN 3
MAXXECUSPORT-C1-L3 INJ 6
OEM-A36
Stock ECU being replaced
1Throttle actuator motor - (M-)
2Throttle actuator motor + (M+)
3Power ground (E02)
4Power ground (E01)
8Ignition coil 4 (IGT4)
10Ignition coil 2 (IGT2)
12Injector 1 port (#10)
14Injector 1 direct (#1)
18Throttle position (VTA1)
19Sensor 5V supply (VC)
20Oil temperature (OT)
21Ignition coil 1 (IGT1)
22Injector 2 port (#20)
24Injector 3 direct (#3)
25Injector 2 direct (#2)
28Throttle position 2 (VTA2)
29Sensor ground (E1)
30Engine coolant temperature (THW)
31Ignition coil 3 (IGT3)
32Injector 3 port (#30)
MAXXECUSPORT
MAXXECUSPORT-C1
MAXXECUSPORT
A1GPO 4
A2IGN 1
A3IGN 2
A4GPO 8/TACHO
B1GPO 5
B2IGN 3
B3IGN 4
B4GPO 1
C1AIN 5 (0-5V)
C4GPO 2
D1WBO2 Heater-
D2AIN 6 (0-5V)
D3AIN 7 (0-5V)
D4GPO 3
E1CAN H
E2CAN L
E3GND Shield
E4AIN 8 (0-5V)
F1CLT
G1+5V sensor supply
G2TPS/AIN
H1Sensor GND
H2Trigger GND
H3TRIGGER
H4HOME
J1AIN 1 (temperature)
J2AIN 2 (Temperature)
J3AIN 3 (0-5V)
J4AIN 4 (0-5V)
K1INJ 1
K2INJ 2
K3DIN 1
K4DIN 2
L1GPO 11/Motor 1-
L2GPO 12/MOTOR 1+
L3INJ 6
L4Engine GND
M1INJ 3
M2INJ 4
M3INJ 5
M4+12V ECU power supply
OEM-A33-20 Blower relay (HB)
OEM-A36-21 Ignition coil 1 (IGT1)
OEM-A36-10 Ignition coil 2 (IGT2)
OEM-A35-35 A/C clutch relay (AC)
OEM-A35-17 ETCS relay (MCR)
OEM-A36-31 Ignition coil 3 (IGT3)
OEM-A36-8 Ignition coil 4 (IGT4)
OEM-A35-13 EFI main relay 1 (SSHUT)
OEM-A36-28 Throttle position 2 (VTA2)
OEM-A35-12 Cooling fan relay 2 (FAN2)
OEM-A34-5 A/F ratio sensor heater (HA1A)
OEM-A35-23 Accelerator pedal position (VPA)
OEM-A36-18 Throttle position (VTA1)
OEM-A35-11 Cooling fan relay 3 (FAN1)
OEM-A33-19 CAN high (CANH)
OEM-A33-18 CAN low (CANL)
SP-SHD · 4 pins
OEM-A34-21 Heated oxygen sensor (OX1B, rear)
OEM-A36-20 Oil temperature (OT)
5V ref
OEM-A35-31 Accelerator pedal position 2 (VPA2)
0V sensor
0V sensor
OEM-A34-16 Crank position (NE+)
OEM-A34-14 VVT cam sensor exhaust bank 1 (EV1+)
OEM-A36-30 Engine coolant temperature (THW)
OEM-A33-12 Intake air temperature (THA, in MAF)
OEM-A33-22 Mass air flow (VG)
OEM-A34-20 Manifold absolute pressure (PIM)
OEM-A36-12 Injector 1 port (#10)
OEM-A36-14 Injector 1 direct (#1)
OEM-A33-14 Starter signal (STSW2)
OEM-A33-15 Clutch switch (CLSW)
OEM-A36-1 Throttle actuator motor - (M-)
OEM-A36-2 Throttle actuator motor + (M+)
OEM-A36-32 Injector 3 port (#30)
GND
OEM-A36-22 Injector 2 port (#20)
OEM-A36-25 Injector 2 direct (#2)
OEM-A36-24 Injector 3 direct (#3)
+12V ECU power supply
SP-14V · 4 pins
SP-SHD · 6 pins
SP-GND · 8 pins
SP-0V · 8 pins
SP-5V1 · 6 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.
62 / 62 connections
Columns ▾
Lengths need a layout. Add bundles in Layout.
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