MX-5 Miata NB1 1999-00 (BP-4W) → ECUMASTER EMU Black (auto)
MX-5 Miata NB1 1999-00 (BP-4W) — ECUMASTER — EMU Black
Drawn by Michael Gnankou · Rev 0 · proposal · 2026-10-04
Revisions
| Rev | Label | By | Date |
|---|---|---|---|
| No revisions yet. | |||
Schematic
Connectors
EMUBLACK-Black
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Ignition coil #5 | — | — | — | — | — | — | — | — |
| 10 | Switch #1 In | — | W48 | — | 0.5 | OEM-1-F | — | — | — |
| 11 | RS232 TXD | — | — | — | — | — | — | — | — |
| 12 | CAN H | — | — | — | — | — | — | — | — |
| 13 | Battery +12V | — | W3 | — | 0.85 | SP-14V-1 | — | — | — |
| 14 | Ignition coil #4 | — | — | — | — | — | — | — | — |
| 15 | EGT in #2 | — | — | — | — | — | — | — | — |
| 16 | Knock Sensor in #2 | — | — | — | — | — | — | — | — |
| 17 | Analog In #3 | — | W41 | — | 0.5 | OEM-3-J | — | — | — |
| 18 | TPS In | — | W39 | — | 0.5 | OEM-3-E | — | — | — |
| 19 | WBO Ip | — | — | — | — | — | — | — | — |
| 2 | EGT in #1 | — | — | — | — | — | — | — | — |
| 20 | VSS In | — | W47 | — | 0.5 | OEM-2-D | — | — | — |
| 21 | Camsync In #1 | — | W17 | — | 0.5 | OEM-2-H | — | — | — |
| 22 | WBO Rcal | — | — | — | — | — | — | — | — |
| 23 | Switch #2 In | — | W49 | — | 0.5 | OEM-1-G | — | — | — |
| 24 | RS232 RXD | — | — | — | — | — | — | — | — |
| 25 | CAN L | — | — | — | — | — | — | — | — |
| 26 | +5V supply | — | W15 | — | 0.5 | OEM-2-I | — | — | — |
| 27 | Power Ground | — | W7 | — | 0.85 | SP-GND-1 | — | — | — |
| 28 | Ecu Ground | — | W8 | — | 0.85 | SP-GND-1 | — | — | — |
| 29 | Sensor Ground | — | W12 | — | 0.5 | SP-0V-1 | — | — | — |
| 3 | Knock Sensor in #1 | — | W18 | — | 0.5 | OEM-2-F | — | — | — |
| 30 | Analog In #4 | — | W45 | — | 0.5 | OEM-3-K | — | — | — |
| 31 | Analog In #1 | — | W38 | — | 0.5 | OEM-2-L | — | — | — |
| 32 | IAT In | — | W42 | — | 0.5 | OEM-2-E | — | — | — |
| 33 | WBO VGND | — | — | — | — | — | — | — | — |
| 34 | +5V supply | — | — | — | — | — | — | — | — |
| 35 | Analog In #5 | — | W46 | — | 0.5 | OEM-3-S | — | — | — |
| 36 | Switch #3 In | — | W50 | — | 0.5 | OEM-1-P | — | — | — |
| 37 | Analog In #6 | — | W51 | — | 0.5 | OEM-1-V | — | — | — |
| 38 | Sensor Ground | — | W13 | — | 0.5 | SP-0V-1 | — | — | — |
| 39 | Sensor Ground | — | W14 | — | 0.5 | SP-0V-1 | — | — | — |
| 4 | Analog In #2 | — | W40 | — | 0.5 | OEM-2-C | — | — | — |
| 5 | CLT In | — | W43 | — | 0.5 | OEM-2-B | — | — | — |
| 6 | WBO Vs | — | — | — | — | — | — | — | — |
| 7 | Camsync In #2 | — | — | — | — | — | — | — | — |
| 8 | Primary trigger | — | W16 | — | 0.5 | OEM-2-J | — | — | — |
| 9 | Flex Fuel In | — | W44 | — | 0.5 | OEM-2-A | — | — | — |
EMUBLACK-Grey
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Ignition coil #6 | — | — | — | — | — | — | — | — |
| 10 | H-Bridge #1 Winding B | — | W34 | — | 0.5 | OEM-1-Q | — | — | — |
| 11 | H-Bridge #2 Winding B | — | W36 | — | 0.5 | OEM-2-N | — | — | — |
| 12 | AUX 5 | — | W30 | — | 0.5 | OEM-3-V | — | — | — |
| 13 | AUX 2 / Injector #8 | — | W26 | — | 0.5 | OEM-1-R | — | — | — |
| 14 | Injector #5 | — | W32 | — | 0.5 | OEM-1-E | — | — | — |
| 15 | Injector #2 | — | W22 | — | 0.5 | OEM-3-X | — | — | — |
| 16 | Ignition coil #2 | — | W20 | — | 0.5 | OEM-3-H | — | — | — |
| 17 | Power Ground | — | W9 | — | 0.85 | SP-GND-1 | — | — | — |
| 18 | Ignition +12V | — | — | — | — | — | — | — | — |
| 19 | WBO Heater | — | W29 | — | 0.5 | OEM-1-U | — | — | — |
| 2 | H-Bridge #1 Winding A | — | W35 | — | 0.5 | OEM-2-M | — | — | — |
| 20 | AUX 4 / Tacho | — | W28 | — | 0.5 | OEM-3-N | — | — | — |
| 21 | AUX 1 / Injector #7 | — | W25 | — | 0.5 | OEM-1-I | — | — | — |
| 22 | Injector #6 | — | W33 | — | 0.5 | OEM-1-O | — | — | — |
| 23 | Injector #3 | — | W23 | — | 0.5 | OEM-3-Y | — | — | — |
| 24 | Power Ground | — | W10 | — | 0.85 | SP-GND-1 | — | — | — |
| 3 | H-Bridge #2 Winding A | — | W37 | — | 0.5 | OEM-2-O | — | — | — |
| 4 | AUX 6 | — | W31 | — | 0.5 | OEM-3-O | — | — | — |
| 5 | AUX 3 | — | W27 | — | 0.5 | OEM-1-S | — | — | — |
| 6 | Injector #4 | — | W24 | — | 0.5 | OEM-3-Z | — | — | — |
| 7 | Injector #1 | — | W21 | — | 0.5 | OEM-3-W | — | — | — |
| 8 | Ignition coil #1 | — | W19 | — | 0.5 | OEM-3-G | — | — | — |
| 9 | Ignition coil #3 | — | — | — | — | — | — | — | — |
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 | — | — | — |
| E | Malfunction indicator lamp (MIL) | — | W32 | — | 0.5 | EMUBLACK-Grey-14 | — | — | — |
| F | Brake switch | — | W48 | — | 0.5 | EMUBLACK-Black-10 | — | — | — |
| G | Power steering pressure switch | — | W49 | — | 0.5 | EMUBLACK-Black-23 | — | — | — |
| I | Condenser fan relay | — | W25 | — | 0.5 | EMUBLACK-Grey-21 | — | — | — |
| O | Alternator control | — | W33 | — | 0.5 | EMUBLACK-Grey-22 | — | — | — |
| P | A/C request | — | W50 | — | 0.5 | EMUBLACK-Black-36 | — | — | — |
| Q | Charge lamp | — | W34 | — | 0.5 | EMUBLACK-Grey-10 | — | — | — |
| R | Cooling fan relay | — | W26 | — | 0.5 | EMUBLACK-Grey-13 | — | — | — |
| S | A/C clutch relay | — | W27 | — | 0.5 | EMUBLACK-Grey-5 | — | — | — |
| U | Front O2 heater | — | W29 | — | 0.5 | EMUBLACK-Grey-19 | — | — | — |
| V | Neutral switch | — | W51 | — | 0.5 | EMUBLACK-Black-37 | — | — | — |
OEM-2
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| A | Fuel tank pressure | — | W44 | — | 0.5 | EMUBLACK-Black-9 | — | — | — |
| B | Intake air temperature (IAT) | — | W43 | — | 0.5 | EMUBLACK-Black-5 | — | — | — |
| C | Front O2 signal | — | W40 | — | 0.5 | EMUBLACK-Black-4 | — | — | — |
| D | Vehicle speed | — | W47 | — | 0.5 | EMUBLACK-Black-20 | — | — | — |
| E | Coolant temperature (ECT) | — | W42 | — | 0.5 | EMUBLACK-Black-32 | — | — | — |
| F | Knock sensor | — | W18 | — | 0.5 | EMUBLACK-Black-3 | — | — | — |
| H | Cam position (CMP) | — | W17 | — | 0.5 | EMUBLACK-Black-21 | — | — | — |
| I | +5V sensor supply | — | W15 | — | 0.5 | EMUBLACK-Black-26 | — | — | — |
| J | Crank position (CKP) | — | W16 | — | 0.5 | EMUBLACK-Black-8 | — | — | — |
| K | Tachometer output | — | — | — | — | — | — | — | — |
| L | Mass air flow (MAF) | — | W38 | — | 0.5 | EMUBLACK-Black-31 | — | — | — |
| M | EGR valve | — | W35 | — | 0.5 | EMUBLACK-Grey-2 | — | — | — |
| N | EGR valve | — | W36 | — | 0.5 | EMUBLACK-Grey-11 | — | — | — |
| O | EGR valve | — | W37 | — | 0.5 | EMUBLACK-Grey-3 | — | — | — |
| P | EGR valve | — | — | — | — | — | — | — | — |
OEM-3
| 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 | — | — | — |
| E | Throttle position (TPS) | — | W39 | — | 0.5 | EMUBLACK-Black-18 | — | — | — |
| F | Signal ground | — | W11 | — | 0.5 | SP-0V-1 | — | — | — |
| G | Ignition 1 (coils 1+4, wasted spark) | — | W19 | — | 0.5 | EMUBLACK-Grey-8 | — | — | — |
| H | Ignition 2 (coils 2+3, wasted spark) | — | W20 | — | 0.5 | EMUBLACK-Grey-16 | — | — | — |
| I | Clutch switch | — | — | — | — | — | — | — | — |
| J | Rear O2 signal | — | W41 | — | 0.5 | EMUBLACK-Black-17 | — | — | — |
| K | Fuel level | — | W45 | — | 0.5 | EMUBLACK-Black-30 | — | — | — |
| L | Evap purge solenoid | — | — | — | — | — | — | — | — |
| M | ISC valve +14V feed | — | W2 | — | 0.85 | SP-14V-1 | — | — | — |
| N | Fuel pump relay | — | W28 | — | 0.5 | EMUBLACK-Grey-20 | — | — | — |
| O | ISC valve low side | — | W31 | — | 0.5 | EMUBLACK-Grey-4 | — | — | — |
| Q | VICS solenoid (intake butterflies) | — | — | — | — | — | — | — | — |
| S | EGR boost sensor | — | W46 | — | 0.5 | EMUBLACK-Black-35 | — | — | — |
| T | EGR boost solenoid | — | — | — | — | — | — | — | — |
| U | Canister drain cut valve (CDCV) | — | — | — | — | — | — | — | — |
| V | Rear O2 heater | — | W30 | — | 0.5 | EMUBLACK-Grey-12 | — | — | — |
| W | Injector 1 | — | W21 | — | 0.5 | EMUBLACK-Grey-7 | — | — | — |
| X | Injector 2 | — | W22 | — | 0.5 | EMUBLACK-Grey-15 | — | — | — |
| Y | Injector 3 | — | W23 | — | 0.5 | EMUBLACK-Grey-23 | — | — | — |
| Z | Injector 4 | — | W24 | — | 0.5 | EMUBLACK-Grey-6 | — | — | — |
SP-0V
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W11 | — | 0.5 | OEM-3-F | — | — | — |
| 1 | — | — | W12 | — | 0.5 | EMUBLACK-Black-29 | — | — | — |
| 1 | — | — | W13 | — | 0.5 | EMUBLACK-Black-38 | — | — | — |
| 1 | — | — | W14 | — | 0.5 | EMUBLACK-Black-39 | — | — | — |
SP-14V
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W1 | — | 0.85 | OEM-1-B | — | — | — |
| 1 | — | — | W2 | — | 0.85 | OEM-3-M | — | — | — |
| 1 | — | — | W3 | — | 0.85 | EMUBLACK-Black-13 | — | — | — |
SP-GND
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W4 | — | 0.85 | OEM-3-A | — | — | — |
| 1 | — | — | W5 | — | 0.85 | OEM-3-B | — | — | — |
| 1 | — | — | W6 | — | 0.85 | OEM-3-C | — | — | — |
| 1 | — | — | W7 | — | 0.85 | EMUBLACK-Black-27 | — | — | — |
| 1 | — | — | W8 | — | 0.85 | EMUBLACK-Black-28 | — | — | — |
| 1 | — | — | W9 | — | 0.85 | EMUBLACK-Grey-17 | — | — | — |
| 1 | — | — | W10 | — | 0.85 | EMUBLACK-Grey-24 | — | — | — |
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 | EMUBLACK-Black-13 | Battery +12V | power_in | single_source | |
| OEM-1-E | Malfunction indicator lamp (MIL) | low_side_out | EMUBLACK-Grey-14 | Injector #5 | injector_out | single_source | |
| OEM-1-F | Brake switch | digital_in | EMUBLACK-Black-10 | Switch #1 In | digital_in | single_source | |
| OEM-1-G | Power steering pressure switch | digital_in | EMUBLACK-Black-23 | Switch #2 In | digital_in | single_source | |
| OEM-1-I | Condenser fan relay | low_side_out | EMUBLACK-Grey-21 | AUX 1 / Injector #7 | low_side_out | single_source | |
| OEM-1-O | Alternator control | low_side_out | EMUBLACK-Grey-22 | Injector #6 | injector_out | single_source | |
| OEM-1-P | A/C request | digital_in | EMUBLACK-Black-36 | Switch #3 In | digital_in | single_source | |
| OEM-1-Q | Charge lamp | low_side_out | EMUBLACK-Grey-10 | H-Bridge #1 Winding B | hbridge_out | single_source | |
| OEM-1-R | Cooling fan relay | low_side_out | EMUBLACK-Grey-13 | AUX 2 / Injector #8 | low_side_out | single_source | |
| OEM-1-S | A/C clutch relay | low_side_out | EMUBLACK-Grey-5 | AUX 3 | low_side_out | single_source | |
| OEM-1-U | Front O2 heater | low_side_out | EMUBLACK-Grey-19 | WBO Heater | low_side_out | single_source | |
| OEM-1-V | Neutral switch | digital_in | EMUBLACK-Black-37 | Analog In #6 | analog_in | single_source | |
| OEM-2-A | Fuel tank pressure | analog_in | EMUBLACK-Black-9 | Flex Fuel In | analog_in | single_source | |
| OEM-2-B | Intake air temperature (IAT) | temp_in | EMUBLACK-Black-5 | CLT In | temp_in | single_source | |
| OEM-2-C | Front O2 signal | lambda_nb_in | EMUBLACK-Black-4 | Analog In #2 | analog_in | single_source | |
| OEM-2-D | Vehicle speed | digital_in | EMUBLACK-Black-20 | VSS In | digital_in | single_source | |
| OEM-2-E | Coolant temperature (ECT) | temp_in | EMUBLACK-Black-32 | IAT In | temp_in | single_source | |
| OEM-2-F | Knock sensor | knock_in | EMUBLACK-Black-3 | Knock Sensor in #1 | knock_in | single_source | |
| OEM-2-H | Cam position (CMP) | trigger_in | EMUBLACK-Black-21 | Camsync In #1 | trigger_in | single_source | |
| OEM-2-I | +5V sensor supply | vref | EMUBLACK-Black-26 | +5V supply | vref | single_source | |
| OEM-2-J | Crank position (CKP) | trigger_in | EMUBLACK-Black-8 | Primary trigger | trigger_in | single_source | |
| OEM-2-K | Tachometer output | tacho_out | — | — | — | single_source | |
| OEM-2-L | Mass air flow (MAF) | analog_in | EMUBLACK-Black-31 | Analog In #1 | analog_in | single_source | |
| OEM-2-M | EGR valve | low_side_out | EMUBLACK-Grey-2 | H-Bridge #1 Winding A | hbridge_out | single_source | |
| OEM-2-N | EGR valve | low_side_out | EMUBLACK-Grey-11 | H-Bridge #2 Winding B | hbridge_out | single_source | |
| OEM-2-O | EGR valve | low_side_out | EMUBLACK-Grey-3 | H-Bridge #2 Winding A | hbridge_out | single_source | |
| OEM-2-P | EGR valve | low_side_out | — | — | — | single_source | |
| OEM-3-A | Power ground | ground | EMUBLACK-Black-27 + EMUBLACK-Black-28 + EMUBLACK-Grey-17 + EMUBLACK-Grey-24 | Power Ground + Ecu Ground + Power Ground + Power Ground | ground | single_source | |
| OEM-3-B | Power ground | ground | EMUBLACK-Black-27 + EMUBLACK-Black-28 + EMUBLACK-Grey-17 + EMUBLACK-Grey-24 | Power Ground + Ecu Ground + Power Ground + Power Ground | ground | single_source | |
| OEM-3-C | Power ground | ground | EMUBLACK-Black-27 + EMUBLACK-Black-28 + EMUBLACK-Grey-17 + EMUBLACK-Grey-24 | Power Ground + Ecu Ground + Power Ground + Power Ground | ground | single_source | |
| OEM-3-E | Throttle position (TPS) | analog_in | EMUBLACK-Black-18 | TPS In | analog_in | single_source | |
| OEM-3-F | Signal ground | sensor_ground | EMUBLACK-Black-29 + EMUBLACK-Black-38 + EMUBLACK-Black-39 | Sensor Ground + Sensor Ground + Sensor Ground | sensor_ground | single_source | |
| OEM-3-G | Ignition 1 (coils 1+4, wasted spark) | ignition_out | EMUBLACK-Grey-8 | Ignition coil #1 | ignition_out | single_source | |
| OEM-3-H | Ignition 2 (coils 2+3, wasted spark) | ignition_out | EMUBLACK-Grey-16 | Ignition coil #2 | ignition_out | single_source | |
| OEM-3-I | Clutch switch | digital_in | — | — | — | single_source | |
| OEM-3-J | Rear O2 signal | lambda_nb_in | EMUBLACK-Black-17 | Analog In #3 | analog_in | single_source | |
| OEM-3-K | Fuel level | analog_in | EMUBLACK-Black-30 | Analog In #4 | analog_in | single_source | |
| OEM-3-L | Evap purge solenoid | low_side_out | — | — | — | single_source | |
| OEM-3-M | ISC valve +14V feed | power_in | EMUBLACK-Black-13 | Battery +12V | power_in | single_source | |
| OEM-3-N | Fuel pump relay | low_side_out | EMUBLACK-Grey-20 | AUX 4 / Tacho | low_side_out | single_source | |
| OEM-3-O | ISC valve low side | low_side_out | EMUBLACK-Grey-4 | AUX 6 | low_side_out | single_source | |
| OEM-3-Q | VICS solenoid (intake butterflies) | low_side_out | — | — | — | single_source | |
| OEM-3-S | EGR boost sensor | analog_in | EMUBLACK-Black-35 | Analog In #5 | analog_in | single_source | |
| OEM-3-T | EGR boost solenoid | low_side_out | — | — | — | single_source | |
| OEM-3-U | Canister drain cut valve (CDCV) | low_side_out | — | — | — | single_source | |
| OEM-3-V | Rear O2 heater | low_side_out | EMUBLACK-Grey-12 | AUX 5 | low_side_out | single_source | |
| OEM-3-W | Injector 1 | injector_out | EMUBLACK-Grey-7 | Injector #1 | injector_out | single_source | |
| OEM-3-X | Injector 2 | injector_out | EMUBLACK-Grey-15 | Injector #2 | injector_out | single_source | |
| OEM-3-Y | Injector 3 | injector_out | EMUBLACK-Grey-23 | Injector #3 | injector_out | single_source | |
| OEM-3-Z | Injector 4 | injector_out | EMUBLACK-Grey-6 | 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 | OEM-3-M | SP-14V-1 | 0.85 | no route | ISC valve +14V feed | — | |
| W3 | SP-14V-1 | EMUBLACK-Black-13 | 0.85 | no route | Battery +12V | — | |
| W4 | OEM-3-A | SP-GND-1 | 0.85 | no route | Power ground | — | |
| W5 | OEM-3-B | SP-GND-1 | 0.85 | no route | Power ground | — | |
| W6 | OEM-3-C | SP-GND-1 | 0.85 | no route | Power ground | — | |
| W7 | SP-GND-1 | EMUBLACK-Black-27 | 0.85 | no route | Power Ground | — | |
| W8 | SP-GND-1 | EMUBLACK-Black-28 | 0.85 | no route | Ecu Ground | — | |
| W9 | SP-GND-1 | EMUBLACK-Grey-17 | 0.85 | no route | Power Ground | — | |
| W10 | SP-GND-1 | EMUBLACK-Grey-24 | 0.85 | no route | Power Ground | — | |
| W11 | OEM-3-F | SP-0V-1 | 0.5 | no route | Signal ground | — | |
| W12 | SP-0V-1 | EMUBLACK-Black-29 | 0.5 | no route | Sensor Ground | — | |
| W13 | SP-0V-1 | EMUBLACK-Black-38 | 0.5 | no route | Sensor Ground | — | |
| W14 | SP-0V-1 | EMUBLACK-Black-39 | 0.5 | no route | Sensor Ground | — | |
| W15 | OEM-2-I | EMUBLACK-Black-26 | 0.5 | no route | +5V sensor supply | — | |
| W16 | OEM-2-J | EMUBLACK-Black-8 | 0.5 | no route | Crank position (CKP) | — | |
| W17 | OEM-2-H | EMUBLACK-Black-21 | 0.5 | no route | Cam position (CMP) | — | |
| W18 | OEM-2-F | EMUBLACK-Black-3 | 0.5 | no route | Knock sensor | — | |
| W19 | OEM-3-G | EMUBLACK-Grey-8 | 0.5 | no route | Ignition 1 (coils 1+4, wasted spark) | — | |
| W20 | OEM-3-H | EMUBLACK-Grey-16 | 0.5 | no route | Ignition 2 (coils 2+3, wasted spark) | — | |
| W21 | OEM-3-W | EMUBLACK-Grey-7 | 0.5 | no route | Injector 1 | — | |
| W22 | OEM-3-X | EMUBLACK-Grey-15 | 0.5 | no route | Injector 2 | — | |
| W23 | OEM-3-Y | EMUBLACK-Grey-23 | 0.5 | no route | Injector 3 | — | |
| W24 | OEM-3-Z | EMUBLACK-Grey-6 | 0.5 | no route | Injector 4 | — | |
| W25 | OEM-1-I | EMUBLACK-Grey-21 | 0.5 | no route | Condenser fan relay | — | |
| W26 | OEM-1-R | EMUBLACK-Grey-13 | 0.5 | no route | Cooling fan relay | — | |
| W27 | OEM-1-S | EMUBLACK-Grey-5 | 0.5 | no route | A/C clutch relay | — | |
| W28 | OEM-3-N | EMUBLACK-Grey-20 | 0.5 | no route | Fuel pump relay | — | |
| W29 | OEM-1-U | EMUBLACK-Grey-19 | 0.5 | no route | Front O2 heater | — | |
| W30 | OEM-3-V | EMUBLACK-Grey-12 | 0.5 | no route | Rear O2 heater | — | |
| W31 | OEM-3-O | EMUBLACK-Grey-4 | 0.5 | no route | ISC valve low side | — | |
| W32 | OEM-1-E | EMUBLACK-Grey-14 | 0.5 | no route | Malfunction indicator lamp (MIL) | — | |
| W33 | OEM-1-O | EMUBLACK-Grey-22 | 0.5 | no route | Alternator control | — | |
| W34 | OEM-1-Q | EMUBLACK-Grey-10 | 0.5 | no route | Charge lamp | — | |
| W35 | OEM-2-M | EMUBLACK-Grey-2 | 0.5 | no route | EGR valve | — | |
| W36 | OEM-2-N | EMUBLACK-Grey-11 | 0.5 | no route | EGR valve | — | |
| W37 | OEM-2-O | EMUBLACK-Grey-3 | 0.5 | no route | EGR valve | — | |
| W38 | OEM-2-L | EMUBLACK-Black-31 | 0.5 | no route | Mass air flow (MAF) | — | |
| W39 | OEM-3-E | EMUBLACK-Black-18 | 0.5 | no route | Throttle position (TPS) | — | |
| W40 | OEM-2-C | EMUBLACK-Black-4 | 0.5 | no route | Front O2 signal | — | |
| W41 | OEM-3-J | EMUBLACK-Black-17 | 0.5 | no route | Rear O2 signal | — | |
| W42 | OEM-2-E | EMUBLACK-Black-32 | 0.5 | no route | Coolant temperature (ECT) | — | |
| W43 | OEM-2-B | EMUBLACK-Black-5 | 0.5 | no route | Intake air temperature (IAT) | — | |
| W44 | OEM-2-A | EMUBLACK-Black-9 | 0.5 | no route | Fuel tank pressure | — | |
| W45 | OEM-3-K | EMUBLACK-Black-30 | 0.5 | no route | Fuel level | — | |
| W46 | OEM-3-S | EMUBLACK-Black-35 | 0.5 | no route | EGR boost sensor | — | |
| W47 | OEM-2-D | EMUBLACK-Black-20 | 0.5 | no route | Vehicle speed | — | |
| W48 | OEM-1-F | EMUBLACK-Black-10 | 0.5 | no route | Brake switch | — | |
| W49 | OEM-1-G | EMUBLACK-Black-23 | 0.5 | no route | Power steering pressure switch | — | |
| W50 | OEM-1-P | EMUBLACK-Black-36 | 0.5 | no route | A/C request | — | |
| W51 | OEM-1-V | EMUBLACK-Black-37 | 0.5 | no route | Neutral switch | — |
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 (8)
| Severity | Code | Subject | Message |
|---|---|---|---|
| warn | NET_FAMILY | OEM-1-Q ↔ EMUBLACK-Grey-10 | OEM-1-Q "Charge lamp" [low_side_out] is wired to EMUBLACK-Grey-10 "H-Bridge #1 Winding B" [hbridge_out]. A half-bridge can act as a low-side switch only if configured that way. |
| warn | NET_FAMILY | OEM-1-V ↔ EMUBLACK-Black-37 | OEM-1-V "Neutral switch" [digital_in] is wired to EMUBLACK-Black-37 "Analog In #6" [analog_in]. Analog and digital on one net. A switch on an analog input works with a pull-up and a threshold; an analog sensor on a digital input loses its value. |
| warn | NET_FAMILY | OEM-2-M ↔ EMUBLACK-Grey-2 | OEM-2-M "EGR valve" [low_side_out] is wired to EMUBLACK-Grey-2 "H-Bridge #1 Winding A" [hbridge_out]. A half-bridge can act as a low-side switch only if configured that way. |
| warn | NET_FAMILY | OEM-2-N ↔ EMUBLACK-Grey-11 | OEM-2-N "EGR valve" [low_side_out] is wired to EMUBLACK-Grey-11 "H-Bridge #2 Winding B" [hbridge_out]. A half-bridge can act as a low-side switch only if configured that way. |
| warn | NET_FAMILY | OEM-2-O ↔ EMUBLACK-Grey-3 | OEM-2-O "EGR valve" [low_side_out] is wired to EMUBLACK-Grey-3 "H-Bridge #2 Winding A" [hbridge_out]. A half-bridge can act as a low-side switch only if configured that way. |
| info | NET_FAMILY | OEM-1-E ↔ EMUBLACK-Grey-14 | OEM-1-E "Malfunction indicator lamp (MIL)" [low_side_out] is wired to EMUBLACK-Grey-14 "Injector #5" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | NET_FAMILY | OEM-1-O ↔ EMUBLACK-Grey-22 | OEM-1-O "Alternator control" [low_side_out] is wired to EMUBLACK-Grey-22 "Injector #6" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | UNMAPPED | OEM | 7 optional OEM pins are not mapped: OEM-2-K Tachometer output; OEM-2-P EGR valve; OEM-3-I Clutch switch; OEM-3-L Evap purge solenoid; OEM-3-Q VICS solenoid (intake butterflies); OEM-3-T EGR boost solenoid; OEM-3-U Canister drain cut valve (CDCV) |
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: ECUMASTER EMU Black has no battery-constant input; not needed - OEM-2 P: EGR valve: no free low_side/ls_hs/injector/hbridge on ECUMASTER EMU Black - OEM-3 L: Evap purge solenoid: no free low_side/ls_hs/injector/hbridge on ECUMASTER EMU Black - OEM-3 Q: VICS solenoid (intake butterflies): no free low_side/ls_hs/injector/hbridge on ECUMASTER EMU Black - OEM-3 T: EGR boost solenoid: no free low_side/ls_hs/injector/hbridge on ECUMASTER EMU Black - OEM-3 U: Canister drain cut valve (CDCV): no free low_side/ls_hs/injector/hbridge on ECUMASTER EMU Black - OEM-2 K: Tachometer output: no free tacho/frequency_out/low_side/ls_hs on ECUMASTER EMU Black - OEM-3 I: Clutch switch: no free switch_in/frequency_in/analog_0_5 on ECUMASTER EMU Black - EMUBLACK-Grey 18: Ignition +12V: 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 | ECUMASTER EMU Black — pinout (Black 39-pin / Grey 24-pin) | https://www.ecumaster.com/wp/wp-content/uploads/2020/05/EMU_Black_pinout.pdf |
| 4 | vendor_doc | Link G4X MX5NB1X install manual (NB1 1999-00) | https://linkecu.com/documentation/MX5XNB1.pdf |