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.
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Stock ECU being replaced
MAXXECUMINI-C1-G3 INJ 1
MAXXECUMINI-C1-G3 INJ 1
MAXXECUMINI-C1-H3 INJ 4
MAXXECUMINI-C1-G1 GPO 2
MAXXECUMINI-C1-G2 GPO 1
MAXXECUMINI-C1-D1 GPO 8/TACHO
MAXXECUMINI-C1-E1 GPO 3
5V ref
MAXXECUMINI-C1-C3 AIN 3 (0-5V)
MAXXECUMINI-C1-D2 TPS
MAXXECUMINI-C1-H3 INJ 4
5V ref
PCM power feed (VPWR, fused)
0V sensor
MAXXECUMINI-C1-C2 IAT
MAXXECUMINI-C1-B1 DIN 1 (Hall only)
MAXXECUMINI-C1-H1 INJ 2
5V ref
MAXXECUMINI-C1-D3 GND Shield (via SP-SHD)
0V sensor
MAXXECUMINI-C1-H2 INJ 3
MAXXECUMINI-C1-C1 CLT
MAXXECUMINI-C1-B2 DIN 2 (Hall only)
0V sensor
0V sensor
0V sensor
MAXXECUMINI-C1-H2 INJ 3
MAXXECUMINI-C1-H1 INJ 2
0V sensor
0V sensor
MAXXECUMINI-C1-A1 TRIGGER
OEM-C175E
Stock ECU being replaced
1Fuel injector driver 1 (INJ 1)
2Fuel injector driver 5 (INJ 5)
3Fuel injector driver 4 (INJ 4)
4Variable camshaft timing valve 2 (VCT2)
5Variable camshaft timing valve 1 (VCT1)
6Variable camshaft timing valve 4 (VCT4)
7Variable camshaft timing valve 3 (VCT3)
8Electronic throttle control reference (ETCREF)
9Throttle position 2 (TP2-PS)
10Throttle position 1 (TP1-NS)
16Fuel injector driver 8 (INJ 8)
17Buffered power supply sensors (VBPWR)
18PCM power feed (VPWR, fused)
23Electronic throttle control return (ETCRTN)
27Intake air temperature (IAT)
30Engine oil level switch (EOL)
31Fuel injector driver 6 (INJ 6)
34Voltage reference engine (VREF)
39Crankshaft sensor shield/drain
40VR sensor return (VRSRTN)
46Fuel injector driver 3 (INJ 3)
47Cylinder head temperature (CHT)
48Oil pressure switch
49Signal return engine #2
52Knock sensor 1 bank 1 return (KS1−)
54VR sensor return (VRSRTN)
61Fuel injector driver 7 (INJ 7)
62Fuel injector driver 2 (INJ 2)
67Knock sensor 2 bank 1 return (KS2−)
69Crankshaft position return (CKP−)
70Crankshaft position (CKP+)
APP
APP-J
APP
GND1Pedal 1 low ref
GND2Pedal 2 low ref
SIG1Pedal position 1
VCC1Pedal 1 5V supply
VCC2Pedal 2 5V supply
0V sensor
0V sensor
MAXXECUMINI-C1-C4 AIN 4 (0-5V)
Pedal 1 5V supply
Pedal 2 5V supply
MAXXECUMINI
MAXXECUMINI-C1
MAXXECUMINI
A1TRIGGER
A2TRIGGER GND
B1DIN 1 (Hall only)
B2DIN 2 (Hall only)
B3SENSOR GND
B4SENSOR GND
C1CLT
C2IAT
C3AIN 3 (0-5V)
C4AIN 4 (0-5V)
D1GPO 8/TACHO
D2TPS
D3GND Shield
D4SENSOR GND
E1GPO 3
E2+5V sensor supply
G1GPO 2
G2GPO 1
G3INJ 1
G4ENGINE GND
H1INJ 2
H2INJ 3
H3INJ 4
H4+12V (ECU power supply)
OEM-C175E-70 Crankshaft position (CKP+)
0V sensor
OEM-C175E-30 Engine oil level switch (EOL)
OEM-C175E-48 Oil pressure switch
0V sensor
0V sensor
OEM-C175E-47 Cylinder head temperature (CHT)
OEM-C175E-27 Intake air temperature (IAT)
OEM-C175E-9 Throttle position 2 (TP2-PS)
APP-J-SIG1 Pedal position 1
OEM-C175E-6 Variable camshaft timing valve 4 (VCT4)
OEM-C175E-10 Throttle position 1 (TP1-NS)
OEM-C175E-39 Crankshaft sensor shield/drain (via SP-SHD)
0V sensor
OEM-C175E-7 Variable camshaft timing valve 3 (VCT3)
5V ref
OEM-C175E-4 Variable camshaft timing valve 2 (VCT2)
OEM-C175E-5 Variable camshaft timing valve 1 (VCT1)
INJ 1 · 2 pins
GND
INJ 2 · 2 pins
INJ 3 · 2 pins
Fuel injector driver 8 (INJ 8) · 2 pins
+12V (ECU power supply)
TB
TB-J
TB
GNDThrottle sensor ground
VCCThrottle 5V supply
0V sensor
Throttle 5V supply
SP-5V1 · 8 pins
SP-0V · 15 pins
SP-SHD · 3 pins
SP-14V · 3 pins
SP-GND · 2 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.