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
MAXXECUSPORT-C1-D3 AIN 7 (0-5V)
MAXXECUSPORT-C1-E4 AIN 8 (0-5V)
RLY1-R-OUT Relay contact output (switched +12 V to load)
RLY2-R-OUT Relay contact output (switched +12 V to load)
OEM-5
Stock ECU being replaced
F2Front VTEC pressure switch
F4Rear VTEC pressure switch
F5Front VTEC solenoid valve
F7Rear VTEC solenoid valve
MAXXECUSPORT-C1-K1 INJ 1
MAXXECUSPORT-C1-M2 INJ 4
MAXXECUSPORT-C1-K2 INJ 2
MAXXECUSPORT-C1-M3 INJ 5
MAXXECUSPORT-C1-M1 INJ 3
MAXXECUSPORT-C1-L3 INJ 6
MAXXECUSPORT-C1-A1 GPO 4
MAXXECUSPORT-C1-B4 GPO 1
MAXXECUSPORT-C1-D1 WBO2 Heater-
MAXXECUSPORT-C1-C4 GPO 2
MAXXECUSPORT-C1-D4 GPO 3
MAXXECUSPORT-C1-A2 IGN 1
MAXXECUSPORT-C1-A3 IGN 2
GND
GND
ECU power (IGP1)
0V sensor
OEM-A
Stock ECU being replaced
1Injector 1
2Injector 4
3Injector 2
4Injector 5
5Injector 3
6Injector 6
7Main relay
8Fuel pump relay 2 (FLR2)
10Front O2 sensor heater (HTCNTF)
15A/C clutch relay (ACC)
18Radiator fan control (FANCNTR)
21Ignition coil 1
22Ignition coil 2
23Power ground (PG1)
24Power ground (PG2)
25ECU power (IGP1)
26Sensor ground (LG1)
GND
MAXXECUSPORT-C1-C3 IGN 6
MAXXECUSPORT-C1-C2 IGN 5
MAXXECUSPORT-C1-B3 IGN 4
MAXXECUSPORT-C1-B2 IGN 3
0V sensor
MAXXECUSPORT-C1-H4 HOME
0V sensor
0V sensor
MAXXECUSPORT-C1-H3 TRIGGER
0V sensor
OEM-B
Stock ECU being replaced
2Chassis ground (LG2)
3Ignition coil 6
4Ignition coil 5
6Ignition coil 4
8Ignition coil 3
10CYL 2M — CYP sensor 2 return
11CYL 1P — CYP sensor 1 signal
12CYL 1M — CYP sensor 1 return
14CRNK 2M — TDC sensor return
15CRNK 1P — crank sensor signal
16CRNK 1M — crank sensor return
ECU power (IGP2)
MAXXECUSPORT-C1-K3 DIN 1
OEM-C
Stock ECU being replaced
1ECU power (IGP2)
2Vehicle speed sensor (VSS)
MAXXECUSPORT-C1-K4 DIN 2
MAXXECUSPORT-C1-G2 TPS/AIN
MAXXECUSPORT-C1-D2 AIN 6 (0-5V)
MAXXECUSPORT-C1-F1 CLT
MAXXECUSPORT-C1-J4 AIN 4 (0-5V)
MAXXECUSPORT-C1-F2 IAT
MAXXECUSPORT-C1-C1 AIN 5 (0-5V)
MAXXECUSPORT-C1-J3 AIN 3 (0-5V)
5V ref
5V ref
5V ref
0V sensor
0V sensor
OEM-D
Stock ECU being replaced
9Alternator FR signal
11Throttle position sensor (TPS)
12EGR lift sensor (EGRL)
13Engine coolant temperature (ECT)
14Primary O2 sensor
15Intake air temperature (IAT)
16Secondary O2 sensor
17MAP sensor
18+5V sensor supply (VCC)
19+5V sensor supply (VCC)
20+5V sensor supply (VCC)
21Sensor ground (SG)
22Sensor ground (SG)
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)
C2IGN 5
C3IGN 6
C4GPO 2
D1WBO2 Heater-
D2AIN 6 (0-5V)
D3AIN 7 (0-5V)
D4GPO 3
E4AIN 8 (0-5V)
F1CLT
F2IAT
G1+5V sensor supply
G2TPS/AIN
H1Sensor GND
H2Trigger GND
H3TRIGGER
H4HOME
J3AIN 3 (0-5V)
J4AIN 4 (0-5V)
K1INJ 1
K2INJ 2
K3DIN 1
K4DIN 2
L3INJ 6
L4Engine GND
M1INJ 3
M2INJ 4
M3INJ 5
M4+12V ECU power supply
OEM-A-7 Main relay
OEM-A-21 Ignition coil 1
OEM-A-22 Ignition coil 2
RLY2-R-COIL- Relay coil negative (ECU low-side driver)
RLY1-R-COIL- Relay coil negative (ECU low-side driver)
OEM-B-8 Ignition coil 3
OEM-B-6 Ignition coil 4
OEM-A-8 Fuel pump relay 2 (FLR2)
OEM-D-16 Secondary O2 sensor
OEM-B-4 Ignition coil 5
OEM-B-3 Ignition coil 6
OEM-A-15 A/C clutch relay (ACC)
OEM-A-10 Front O2 sensor heater (HTCNTF)
OEM-D-12 EGR lift sensor (EGRL)
OEM-5-F2 Front VTEC pressure switch
OEM-A-18 Radiator fan control (FANCNTR)
OEM-5-F4 Rear VTEC pressure switch
OEM-D-13 Engine coolant temperature (ECT)
OEM-D-15 Intake air temperature (IAT)
5V ref
OEM-D-11 Throttle position sensor (TPS)
0V sensor
0V sensor
OEM-B-15 CRNK 1P — crank sensor signal
OEM-B-11 CYL 1P — CYP sensor 1 signal
OEM-D-17 MAP sensor
OEM-D-14 Primary O2 sensor
OEM-A-1 Injector 1
OEM-A-3 Injector 2
OEM-C-2 Vehicle speed sensor (VSS)
OEM-D-9 Alternator FR signal
OEM-A-6 Injector 6
GND
OEM-A-5 Injector 3
OEM-A-2 Injector 4
OEM-A-4 Injector 5
+12V ECU power supply
RLY1
RLY1-R
RLY1
INRelay contact input (switched +12 V)
OUTRelay contact output (switched +12 V to load)
COIL+Relay coil positive (switched +12 V)
COIL-Relay coil negative (ECU low-side driver)
SP-14V · 5 pins
OEM-5-F5 Front VTEC solenoid valve
Relay coil positive (switched +12 V)
MAXXECUSPORT-C1-B1 GPO 5
RLY2
RLY2-R
RLY2
INRelay contact input (switched +12 V)
OUTRelay contact output (switched +12 V to load)
COIL+Relay coil positive (switched +12 V)
COIL-Relay coil negative (ECU low-side driver)
SP-14V · 5 pins
OEM-5-F7 Rear VTEC solenoid valve
Relay coil positive (switched +12 V)
MAXXECUSPORT-C1-A4 GPO 8/TACHO
SP-GND · 5 pins
SP-0V · 10 pins
SP-14V · 8 pins
SP-5V1 · 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.
58 / 58 connections
Columns ▾
Lengths need a layout. Add bundles in Layout.
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