MX-5 Miata NA6 1990-93 (B6-ZE, 1.6) → MaxxECU MaxxECU GEN2 RACE (auto)
MX-5 Miata NA6 1990-93 (B6-ZE, 1.6) — MaxxECU — MaxxECU GEN2 RACE
Drawn by Michael Gnankou · Rev 0 · proposal · 2026-10-04
Revisions
| Rev | Label | By | Date |
|---|---|---|---|
| No revisions yet. | |||
Schematic
Connectors
MAXXECUGEN2R-MX1
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Ignition 1 | — | W16 | — | 0.5 | OEM-1-G | — | — | — |
| 10 | Digital/VR 1 SIGNAL + | — | W14 | — | 0.5 | OEM-2-E | — | — | — |
| 11 | Digital/VR 1 SIGNAL - | — | — | — | — | — | — | — | — |
| 12 | Digital/VR 1 POWER SUPPLY | — | W13 | — | 0.5 | OEM-2-K | — | — | — |
| 13 | Digital/VR 1 SHIELD | — | — | — | — | — | — | — | — |
| 14 | SENSOR GND | — | W12 | — | 0.5 | SP-0V-1 | — | — | — |
| 15 | CAN L | — | — | — | — | — | — | — | — |
| 16 | CAN H | — | — | — | — | — | — | — | — |
| 17 | GP out 5 (GND) | — | — | — | — | — | — | — | — |
| 18 | Digital/VR 2 SIGNAL + | — | W15 | — | 0.5 | OEM-2-G | — | — | — |
| 19 | Digital/VR 2 SIGNAL - | — | — | — | — | — | — | — | — |
| 2 | Ignition 2 | — | W17 | — | 0.5 | OEM-1-H | — | — | — |
| 20 | Digital/VR 2 POWER SUPPLY | — | — | — | — | — | — | — | — |
| 21 | Digital/VR 2 SHIELD | — | — | — | — | — | — | — | — |
| 22 | 5V power supply | — | — | — | — | — | — | — | — |
| 23 | Digital/VR 3 SIGNAL + | — | W28 | — | 0.5 | OEM-1-C | — | — | — |
| 24 | Digital/VR 4 SIGNAL + | — | W29 | — | 0.5 | OEM-1-N | — | — | — |
| 25 | 12V supply 1 | — | W2 | — | 0.85 | SP-14V-1 | — | — | — |
| 26 | AIN 1 | — | W24 | — | 0.5 | OEM-2-O | — | — | — |
| 27 | AIN 2 | — | W25 | — | 0.5 | OEM-2-N | — | — | — |
| 28 | AIN 3 | — | W26 | — | 0.5 | OEM-2-Q | — | — | — |
| 29 | AIN 4 | — | W27 | — | 0.5 | OEM-2-P | — | — | — |
| 3 | Ignition 3 | — | — | — | — | — | — | — | — |
| 30 | AIN 5 | — | — | — | — | — | — | — | — |
| 31 | INJECTOR 1 | — | W18 | — | 0.5 | OEM-2-U | — | — | — |
| 32 | INJECTOR 2 | — | W19 | — | 0.5 | OEM-2-V | — | — | — |
| 33 | INJECTOR 3 | — | W20 | — | 0.5 | OEM-2-Y | — | — | — |
| 34 | INJECTOR 4 | — | W21 | — | 0.5 | OEM-2-Z | — | — | — |
| 4 | Ignition 4 | — | — | — | — | — | — | — | — |
| 5 | GP out 1 (GND) | — | W22 | — | 0.5 | OEM-1-E | — | — | — |
| 6 | GP out 2 (GND) | — | W23 | — | 0.5 | OEM-2-I | — | — | — |
| 7 | GP out 3 (GND) | — | — | — | — | — | — | — | — |
| 8 | GP out 4 (GND) | — | — | — | — | — | — | — | — |
| 9 | Engine gnd | — | W8 | — | 0.85 | SP-GND-1 | — | — | — |
MAXXECUGEN2R-MX2
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Ignition 5 | — | — | — | — | — | — | — | — |
| 10 | WBO2 Sensor 1 VS | — | — | — | — | — | — | — | — |
| 11 | WBO2 Sensor 1 COM/VREF | — | — | — | — | — | — | — | — |
| 12 | GP OUT 7 / WBO2 Sensor 1 H- | — | — | — | — | — | — | — | — |
| 13 | AIN 9 | — | — | — | — | — | — | — | — |
| 14 | AIN 10 | — | — | — | — | — | — | — | — |
| 15 | AIN 11 | — | — | — | — | — | — | — | — |
| 16 | AIN 12 | — | — | — | — | — | — | — | — |
| 17 | AIN 13 | — | — | — | — | — | — | — | — |
| 18 | WBO2 sensor 1 RCAL | — | — | — | — | — | — | — | — |
| 19 | WBO2 sensor 1 IP | — | — | — | — | — | — | — | — |
| 2 | Ignition 6 | — | — | — | — | — | — | — | — |
| 20 | 12V WBO2 sensor 1 H+ | — | — | — | — | — | — | — | — |
| 21 | WBO2 sensor 1 SHIELD | — | — | — | — | — | — | — | — |
| 22 | AIN 14 | — | — | — | — | — | — | — | — |
| 23 | AIN 15 | — | — | — | — | — | — | — | — |
| 24 | 12V supply 3 | — | — | — | — | — | — | — | — |
| 25 | 12V supply 2 | — | W3 | — | 0.85 | SP-14V-1 | — | — | — |
| 26 | KNOCK1 SHIELD | — | — | — | — | — | — | — | — |
| 27 | KNOCK 1- | — | — | — | — | — | — | — | — |
| 28 | KNOCK 1+ | — | — | — | — | — | — | — | — |
| 29 | KNOCK 2 SHIELD | — | — | — | — | — | — | — | — |
| 3 | GP out 6 (GND) | — | — | — | — | — | — | — | — |
| 30 | KNOCK 2- | — | — | — | — | — | — | — | — |
| 31 | KNOCK 2+ | — | — | — | — | — | — | — | — |
| 32 | AIN 16 | — | — | — | — | — | — | — | — |
| 33 | INJECTOR 5 | — | — | — | — | — | — | — | — |
| 34 | INJECTOR 6 | — | — | — | — | — | — | — | — |
| 4 | AIN 6 | — | — | — | — | — | — | — | — |
| 5 | AIN 7 | — | — | — | — | — | — | — | — |
| 6 | AIN 8 | — | — | — | — | — | — | — | — |
| 7 | GP out 13 (H-BRIDGE 1) | — | — | — | — | — | — | — | — |
| 8 | GP out 14 (H-BRIDGE 1) | — | — | — | — | — | — | — | — |
| 9 | Engine gnd | — | W9 | — | 0.85 | SP-GND-1 | — | — | — |
MAXXECUGEN2R-MX3
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | GP out 15 (H-BRIDGE 2) | — | — | — | — | — | — | — | — |
| 10 | WBO2 sensor 2 VS | — | — | — | — | — | — | — | — |
| 11 | WBO2 sensor 2 COM/VREF | — | — | — | — | — | — | — | — |
| 12 | GP Out 8 (GND) / WBO2 Sensor 2 H- | — | — | — | — | — | — | — | — |
| 13 | WBO2 sensor 2 SHIELD | — | — | — | — | — | — | — | — |
| 14 | GP OUT 9 (12V) | — | — | — | — | — | — | — | — |
| 15 | GP OUT 10 (12V) | — | — | — | — | — | — | — | — |
| 16 | GP OUT 11 (12V) | — | — | — | — | — | — | — | — |
| 17 | GP OUT 12 (12V) | — | — | — | — | — | — | — | — |
| 18 | WBO2 sensor 2 RCAL | — | — | — | — | — | — | — | — |
| 19 | WBO2 sensor 2 IP | — | — | — | — | — | — | — | — |
| 2 | GP out 16 (H-BRIDGE 2) | — | — | — | — | — | — | — | — |
| 20 | 12V WBO2 sensor 2 (H+) | — | — | — | — | — | — | — | — |
| 21 | AIN 17 | — | — | — | — | — | — | — | — |
| 22 | AIN 18 | — | — | — | — | — | — | — | — |
| 23 | AIN 19 | — | — | — | — | — | — | — | — |
| 24 | AIN 20 | — | — | — | — | — | — | — | — |
| 25 | AIN 21 | — | — | — | — | — | — | — | — |
| 26 | AIN 22 | — | — | — | — | — | — | — | — |
| 27 | AIN 23 | — | — | — | — | — | — | — | — |
| 28 | AIN 24 | — | — | — | — | — | — | — | — |
| 29 | INJECTOR 7 | — | — | — | — | — | — | — | — |
| 3 | Ignition 7 | — | — | — | — | — | — | — | — |
| 30 | INJECTOR 8 | — | — | — | — | — | — | — | — |
| 31 | INJECTOR 9 | — | — | — | — | — | — | — | — |
| 32 | INJECTOR 10 | — | — | — | — | — | — | — | — |
| 33 | INJECTOR 11 | — | — | — | — | — | — | — | — |
| 34 | INJECTOR 12 | — | — | — | — | — | — | — | — |
| 4 | Ignition 8 | — | — | — | — | — | — | — | — |
| 5 | Ignition 9 | — | — | — | — | — | — | — | — |
| 6 | Ignition 10 | — | — | — | — | — | — | — | — |
| 7 | Ignition 11 | — | — | — | — | — | — | — | — |
| 8 | Ignition 12 | — | — | — | — | — | — | — | — |
| 9 | Engine gnd | — | W10 | — | 0.85 | SP-GND-1 | — | — | — |
MAXXECUGEN2R-MX4
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Digital/VR 5 SHIELD | — | — | — | — | — | — | — | — |
| 10 | EGT 1 + | — | — | — | — | — | — | — | — |
| 11 | EGT 2 + | — | — | — | — | — | — | — | — |
| 12 | EGT 3 + | — | — | — | — | — | — | — | — |
| 13 | EGT 4 + | — | — | — | — | — | — | — | — |
| 14 | EGT 5 + | — | — | — | — | — | — | — | — |
| 15 | EGT 6 + | — | — | — | — | — | — | — | — |
| 16 | EGT 7 + | — | — | — | — | — | — | — | — |
| 17 | EGT 8 + | — | — | — | — | — | — | — | — |
| 18 | EGT 1 - | — | — | — | — | — | — | — | — |
| 19 | EGT 2 - | — | — | — | — | — | — | — | — |
| 2 | Digital/VR 5 SIGNAL - | — | — | — | — | — | — | — | — |
| 20 | EGT 3 - | — | — | — | — | — | — | — | — |
| 21 | EGT 4 - | — | — | — | — | — | — | — | — |
| 22 | EGT 5 - | — | — | — | — | — | — | — | — |
| 23 | EGT 6 - | — | — | — | — | — | — | — | — |
| 24 | EGT 7 - | — | — | — | — | — | — | — | — |
| 25 | EGT 8 - | — | — | — | — | — | — | — | — |
| 26 | Digital/VR 8 SHIELD | — | — | — | — | — | — | — | — |
| 27 | Digital/VR 8 SIGNAL - | — | — | — | — | — | — | — | — |
| 28 | Digital/VR 8 SIGNAL + | — | W33 | — | 0.5 | OEM-2-L | — | — | — |
| 29 | CAN 2 L | — | — | — | — | — | — | — | — |
| 3 | Digital/VR 5 SIGNAL + | — | W30 | — | 0.5 | OEM-1-P | — | — | — |
| 30 | CAN 2 H | — | — | — | — | — | — | — | — |
| 31 | INJECTOR 13 | — | — | — | — | — | — | — | — |
| 32 | INJECTOR 14 | — | — | — | — | — | — | — | — |
| 33 | INJECTOR 15 | — | — | — | — | — | — | — | — |
| 34 | INJECTOR 16 | — | — | — | — | — | — | — | — |
| 4 | Digital/VR 6 SHIELD | — | — | — | — | — | — | — | — |
| 5 | Digital/VR 6 SIGNAL - | — | — | — | — | — | — | — | — |
| 6 | Digital/VR 6 SIGNAL + | — | W31 | — | 0.5 | OEM-1-Q | — | — | — |
| 7 | Digital/VR 7 SHIELD | — | — | — | — | — | — | — | — |
| 8 | Digital/VR 7 SIGNAL - | — | — | — | — | — | — | — | — |
| 9 | Digital/VR 7 SIGNAL + | — | W32 | — | 0.5 | OEM-1-V | — | — | — |
OEM-1
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| A | Constant +12V | — | — | — | — | — | — | — | — |
| B | ECU power +14V (main relay) | — | W1 | — | 0.85 | SP-14V-1 | — | — | — |
| C | Start signal | — | W28 | — | 0.5 | MAXXECUGEN2R-MX1-23 | — | — | — |
| E | Malfunction indicator lamp (MIL) | — | W22 | — | 0.5 | MAXXECUGEN2R-MX1-5 | — | — | — |
| G | Ignition 1 (coils 1+4, wasted spark) | — | W16 | — | 0.5 | MAXXECUGEN2R-MX1-1 | — | — | — |
| H | Ignition 2 (coils 2+3, wasted spark) | — | W17 | — | 0.5 | MAXXECUGEN2R-MX1-2 | — | — | — |
| N | Wide-open throttle switch | — | W29 | — | 0.5 | MAXXECUGEN2R-MX1-24 | — | — | — |
| P | Power steering pressure switch | — | W30 | — | 0.5 | MAXXECUGEN2R-MX4-3 | — | — | — |
| Q | A/C request | — | W31 | — | 0.5 | MAXXECUGEN2R-MX4-6 | — | — | — |
| V | Neutral/clutch switch | — | W32 | — | 0.5 | MAXXECUGEN2R-MX4-9 | — | — | — |
OEM-2
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| A | Power ground | — | W4 | — | 0.85 | SP-GND-1 | — | — | — |
| B | Power ground | — | W5 | — | 0.85 | SP-GND-1 | — | — | — |
| C | Power ground | — | W6 | — | 0.85 | SP-GND-1 | — | — | — |
| D | Power ground | — | W7 | — | 0.85 | SP-GND-1 | — | — | — |
| E | Crank position (CAS NE) | — | W14 | — | 0.5 | MAXXECUGEN2R-MX1-10 | — | — | — |
| F | AFM ground | — | W11 | — | 0.5 | SP-0V-1 | — | — | — |
| G | Cam position (CAS G) | — | W15 | — | 0.5 | MAXXECUGEN2R-MX1-18 | — | — | — |
| I | Tachometer output | — | W23 | — | 0.5 | MAXXECUGEN2R-MX1-6 | — | — | — |
| K | +5V sensor supply | — | W13 | — | 0.5 | MAXXECUGEN2R-MX1-12 | — | — | — |
| L | Idle switch (TPS) | — | W33 | — | 0.5 | MAXXECUGEN2R-MX4-28 | — | — | — |
| N | O2 sensor | — | W25 | — | 0.5 | MAXXECUGEN2R-MX1-27 | — | — | — |
| O | Air flow meter (AFM) | — | W24 | — | 0.5 | MAXXECUGEN2R-MX1-26 | — | — | — |
| P | Intake air temperature (IAT) | — | W27 | — | 0.5 | MAXXECUGEN2R-MX1-29 | — | — | — |
| Q | Coolant temperature (ECT) | — | W26 | — | 0.5 | MAXXECUGEN2R-MX1-28 | — | — | — |
| U | Injector 1 | — | W18 | — | 0.5 | MAXXECUGEN2R-MX1-31 | — | — | — |
| V | Injector 2 | — | W19 | — | 0.5 | MAXXECUGEN2R-MX1-32 | — | — | — |
| Y | Injector 3 | — | W20 | — | 0.5 | MAXXECUGEN2R-MX1-33 | — | — | — |
| Z | Injector 4 | — | W21 | — | 0.5 | MAXXECUGEN2R-MX1-34 | — | — | — |
SP-0V
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W11 | — | 0.5 | OEM-2-F | — | — | — |
| 1 | — | — | W12 | — | 0.5 | MAXXECUGEN2R-MX1-14 | — | — | — |
SP-14V
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W1 | — | 0.85 | OEM-1-B | — | — | — |
| 1 | — | — | W2 | — | 0.85 | MAXXECUGEN2R-MX1-25 | — | — | — |
| 1 | — | — | W3 | — | 0.85 | MAXXECUGEN2R-MX2-25 | — | — | — |
SP-GND
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W4 | — | 0.85 | OEM-2-A | — | — | — |
| 1 | — | — | W5 | — | 0.85 | OEM-2-B | — | — | — |
| 1 | — | — | W6 | — | 0.85 | OEM-2-C | — | — | — |
| 1 | — | — | W7 | — | 0.85 | OEM-2-D | — | — | — |
| 1 | — | — | W8 | — | 0.85 | MAXXECUGEN2R-MX1-9 | — | — | — |
| 1 | — | — | W9 | — | 0.85 | MAXXECUGEN2R-MX2-9 | — | — | — |
| 1 | — | — | W10 | — | 0.85 | MAXXECUGEN2R-MX3-9 | — | — | — |
Pin map
| OEM point | OEM function | OEM family | Target point | Target function | Target family | Wire colour | Evidence |
|---|---|---|---|---|---|---|---|
| OEM-1-A | Constant +12V | power_in | — | — | — | single_source | |
| OEM-1-B | ECU power +14V (main relay) | power_in | MAXXECUGEN2R-MX1-25 + MAXXECUGEN2R-MX2-25 | 12V supply 1 + 12V supply 2 | power_in | single_source | |
| OEM-1-C | Start signal | digital_in | MAXXECUGEN2R-MX1-23 | Digital/VR 3 SIGNAL + | digital_in | single_source | |
| OEM-1-E | Malfunction indicator lamp (MIL) | low_side_out | MAXXECUGEN2R-MX1-5 | GP out 1 (GND) | low_side_out | single_source | |
| OEM-1-G | Ignition 1 (coils 1+4, wasted spark) | ignition_out | MAXXECUGEN2R-MX1-1 | Ignition 1 | ignition_out | single_source | |
| OEM-1-H | Ignition 2 (coils 2+3, wasted spark) | ignition_out | MAXXECUGEN2R-MX1-2 | Ignition 2 | ignition_out | single_source | |
| OEM-1-N | Wide-open throttle switch | digital_in | MAXXECUGEN2R-MX1-24 | Digital/VR 4 SIGNAL + | digital_in | single_source | |
| OEM-1-P | Power steering pressure switch | digital_in | MAXXECUGEN2R-MX4-3 | Digital/VR 5 SIGNAL + | digital_in | single_source | |
| OEM-1-Q | A/C request | digital_in | MAXXECUGEN2R-MX4-6 | Digital/VR 6 SIGNAL + | digital_in | single_source | |
| OEM-1-V | Neutral/clutch switch | digital_in | MAXXECUGEN2R-MX4-9 | Digital/VR 7 SIGNAL + | digital_in | single_source | |
| OEM-2-A | Power ground | ground | MAXXECUGEN2R-MX1-9 + MAXXECUGEN2R-MX2-9 + MAXXECUGEN2R-MX3-9 | Engine gnd + Engine gnd + Engine gnd | ground | single_source | |
| OEM-2-B | Power ground | ground | MAXXECUGEN2R-MX1-9 + MAXXECUGEN2R-MX2-9 + MAXXECUGEN2R-MX3-9 | Engine gnd + Engine gnd + Engine gnd | ground | single_source | |
| OEM-2-C | Power ground | ground | MAXXECUGEN2R-MX1-9 + MAXXECUGEN2R-MX2-9 + MAXXECUGEN2R-MX3-9 | Engine gnd + Engine gnd + Engine gnd | ground | single_source | |
| OEM-2-D | Power ground | ground | MAXXECUGEN2R-MX1-9 + MAXXECUGEN2R-MX2-9 + MAXXECUGEN2R-MX3-9 | Engine gnd + Engine gnd + Engine gnd | ground | single_source | |
| OEM-2-E | Crank position (CAS NE) | trigger_in | MAXXECUGEN2R-MX1-10 | Digital/VR 1 SIGNAL + | trigger_in | single_source | |
| OEM-2-F | AFM ground | sensor_ground | MAXXECUGEN2R-MX1-14 | SENSOR GND | sensor_ground | single_source | |
| OEM-2-G | Cam position (CAS G) | trigger_in | MAXXECUGEN2R-MX1-18 | Digital/VR 2 SIGNAL + | trigger_in | single_source | |
| OEM-2-I | Tachometer output | tacho_out | MAXXECUGEN2R-MX1-6 | GP out 2 (GND) | low_side_out | single_source | |
| OEM-2-K | +5V sensor supply | vref | MAXXECUGEN2R-MX1-12 | Digital/VR 1 POWER SUPPLY | vref | single_source | |
| OEM-2-L | Idle switch (TPS) | digital_in | MAXXECUGEN2R-MX4-28 | Digital/VR 8 SIGNAL + | digital_in | single_source | |
| OEM-2-N | O2 sensor | lambda_nb_in | MAXXECUGEN2R-MX1-27 | AIN 2 | analog_in | single_source | |
| OEM-2-O | Air flow meter (AFM) | analog_in | MAXXECUGEN2R-MX1-26 | AIN 1 | analog_in | single_source | |
| OEM-2-P | Intake air temperature (IAT) | temp_in | MAXXECUGEN2R-MX1-29 | AIN 4 | analog_in | single_source | |
| OEM-2-Q | Coolant temperature (ECT) | temp_in | MAXXECUGEN2R-MX1-28 | AIN 3 | analog_in | single_source | |
| OEM-2-U | Injector 1 | injector_out | MAXXECUGEN2R-MX1-31 | INJECTOR 1 | injector_out | single_source | |
| OEM-2-V | Injector 2 | injector_out | MAXXECUGEN2R-MX1-32 | INJECTOR 2 | injector_out | single_source | |
| OEM-2-Y | Injector 3 | injector_out | MAXXECUGEN2R-MX1-33 | INJECTOR 3 | injector_out | single_source | |
| OEM-2-Z | Injector 4 | injector_out | MAXXECUGEN2R-MX1-34 | INJECTOR 4 | injector_out | single_source |
Cut list
| Wire | From | To | Gauge (mm²) | Colour | Length | Signal | Ident |
|---|---|---|---|---|---|---|---|
| W1 | OEM-1-B | SP-14V-1 | 0.85 | no route | ECU power +14V (main relay) | — | |
| W2 | SP-14V-1 | MAXXECUGEN2R-MX1-25 | 0.85 | no route | 12V supply 1 | — | |
| W3 | SP-14V-1 | MAXXECUGEN2R-MX2-25 | 0.85 | no route | 12V supply 2 | — | |
| W4 | OEM-2-A | SP-GND-1 | 0.85 | no route | Power ground | — | |
| W5 | OEM-2-B | SP-GND-1 | 0.85 | no route | Power ground | — | |
| W6 | OEM-2-C | SP-GND-1 | 0.85 | no route | Power ground | — | |
| W7 | OEM-2-D | SP-GND-1 | 0.85 | no route | Power ground | — | |
| W8 | SP-GND-1 | MAXXECUGEN2R-MX1-9 | 0.85 | no route | Engine gnd | — | |
| W9 | SP-GND-1 | MAXXECUGEN2R-MX2-9 | 0.85 | no route | Engine gnd | — | |
| W10 | SP-GND-1 | MAXXECUGEN2R-MX3-9 | 0.85 | no route | Engine gnd | — | |
| W11 | OEM-2-F | SP-0V-1 | 0.5 | no route | AFM ground | — | |
| W12 | SP-0V-1 | MAXXECUGEN2R-MX1-14 | 0.5 | no route | SENSOR GND | — | |
| W13 | OEM-2-K | MAXXECUGEN2R-MX1-12 | 0.5 | no route | +5V sensor supply | — | |
| W14 | OEM-2-E | MAXXECUGEN2R-MX1-10 | 0.5 | no route | Crank position (CAS NE) | — | |
| W15 | OEM-2-G | MAXXECUGEN2R-MX1-18 | 0.5 | no route | Cam position (CAS G) | — | |
| W16 | OEM-1-G | MAXXECUGEN2R-MX1-1 | 0.5 | no route | Ignition 1 (coils 1+4, wasted spark) | — | |
| W17 | OEM-1-H | MAXXECUGEN2R-MX1-2 | 0.5 | no route | Ignition 2 (coils 2+3, wasted spark) | — | |
| W18 | OEM-2-U | MAXXECUGEN2R-MX1-31 | 0.5 | no route | Injector 1 | — | |
| W19 | OEM-2-V | MAXXECUGEN2R-MX1-32 | 0.5 | no route | Injector 2 | — | |
| W20 | OEM-2-Y | MAXXECUGEN2R-MX1-33 | 0.5 | no route | Injector 3 | — | |
| W21 | OEM-2-Z | MAXXECUGEN2R-MX1-34 | 0.5 | no route | Injector 4 | — | |
| W22 | OEM-1-E | MAXXECUGEN2R-MX1-5 | 0.5 | no route | Malfunction indicator lamp (MIL) | — | |
| W23 | OEM-2-I | MAXXECUGEN2R-MX1-6 | 0.5 | no route | Tachometer output | — | |
| W24 | OEM-2-O | MAXXECUGEN2R-MX1-26 | 0.5 | no route | Air flow meter (AFM) | — | |
| W25 | OEM-2-N | MAXXECUGEN2R-MX1-27 | 0.5 | no route | O2 sensor | — | |
| W26 | OEM-2-Q | MAXXECUGEN2R-MX1-28 | 0.5 | no route | Coolant temperature (ECT) | — | |
| W27 | OEM-2-P | MAXXECUGEN2R-MX1-29 | 0.5 | no route | Intake air temperature (IAT) | — | |
| W28 | OEM-1-C | MAXXECUGEN2R-MX1-23 | 0.5 | no route | Start signal | — | |
| W29 | OEM-1-N | MAXXECUGEN2R-MX1-24 | 0.5 | no route | Wide-open throttle switch | — | |
| W30 | OEM-1-P | MAXXECUGEN2R-MX4-3 | 0.5 | no route | Power steering pressure switch | — | |
| W31 | OEM-1-Q | MAXXECUGEN2R-MX4-6 | 0.5 | no route | A/C request | — | |
| W32 | OEM-1-V | MAXXECUGEN2R-MX4-9 | 0.5 | no route | Neutral/clutch switch | — | |
| W33 | OEM-2-L | MAXXECUGEN2R-MX4-28 | 0.5 | no route | Idle switch (TPS) | — |
Bill of materials
| Category | Part number | Manufacturer | Description | Qty | Unit |
|---|
ECU setup sheet
| Role | Engine ref | Engine signal | Sensor | ECU point | ECU function | ECU class | Setup flag |
|---|---|---|---|---|---|---|---|
| No configured channels. | |||||||
Findings
Open (3)
| Severity | Code | Subject | Message |
|---|---|---|---|
| info | NET_FAMILY | OEM-2-I ↔ MAXXECUGEN2R-MX1-6 | OEM-2-I "Tachometer output" [tacho_out] is wired to MAXXECUGEN2R-MX1-6 "GP out 2 (GND)" [low_side_out]. Tacho as a low-side output: check the tach needs a pull-up. |
| info | NET_FAMILY | OEM-2-P ↔ MAXXECUGEN2R-MX1-29 | OEM-2-P "Intake air temperature (IAT)" [temp_in] is wired to MAXXECUGEN2R-MX1-29 "AIN 4" [analog_in]. Thermistor on a plain analog input needs a pull-up; check the channel can enable one. |
| info | NET_FAMILY | OEM-2-Q ↔ MAXXECUGEN2R-MX1-28 | OEM-2-Q "Coolant temperature (ECT)" [temp_in] is wired to MAXXECUGEN2R-MX1-28 "AIN 3" [analog_in]. Thermistor on a plain analog input needs a pull-up; check the channel can enable one. |
Accepted (1)
| Code | Subject | Reason | By |
|---|---|---|---|
| REQUIRED_UNMAPPED | OEM-1-A | Battery-constant (memory) feed of the stock ECU: the new ECU has no such input, so it is not needed. | mapping-proposal |
Notes
Auto-mapped by auto_map() from the library pin data on 2026-10-04. Review every wire against both manuals before building. Not wired: - OEM-1 A: Constant +12V: MaxxECU MaxxECU GEN2 RACE has no battery-constant input; not needed - MAXXECUGEN2R-MX2 24: 12V supply 3: not fed (the stock ECU has no ignition-sense pin); feed it from a switched-ignition source
Sources
| Reliability | Kind | Title | URL |
|---|---|---|---|
| 4 | vendor_doc | Link G4X MX5X install manual (NA 1.6/1.8) | https://linkecu.com/documentation/MX5X.pdf |
| 4 | vendor_doc | MaxxECU GEN2 pinout (RACE MX1–MX4 / TRACK MX1–MX3) | http://www.maxxecu.com/webhelp/wirings-maxxecu_gen2_pinout.html |