MX-5 Miata Mazdaspeed 2004-05 (BP-ZET turbo, no VVT) → ECUMASTER EMU Black (auto)
MX-5 Miata Mazdaspeed 2004-05 (BP-ZET turbo, no VVT) — ECUMASTER — EMU Black
Drawn by Michael Gnankou · Rev 0 · proposal · 2026-10-17
Before you start
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.
| Status | proposal · not yet verified: nobody has reported building and running this harness |
|---|---|
| Open errors | none |
| Size of the job | 54 wires · 10 connectors · 0 part lines |
| Tools | Crimp and extraction tools for each terminal family (see Connectors) · wire strippers · multimeter · heat gun + heat-shrink |
| Order of work | 1. Check every part against the parts list. 2. Cut and label every wire (labels: Export → Wire labels). 3. Crimp and pin connector by connector, ticking the build checklist. 4. Run the bench test with nothing plugged in and the battery disconnected. 5. Only then connect the ECU and power up. |
Build checklist
Tick each box as you go. Continuity: meter from end to end, expect under 1 Ω.
| Wire | From | To | Gauge | Colour | Cut | Label | Crimp A | Crimp B | Pin A | Pin B | Continuity |
|---|---|---|---|---|---|---|---|---|---|---|---|
| W1 | OEM-2-P | SP-14V-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W2 | OEM-4-AF | SP-14V-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W3 | SP-14V-1 | EMUBLACK-Black-13 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W4 | OEM-3-A | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W5 | OEM-3-B | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W6 | OEM-4-A | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W7 | SP-GND-1 | EMUBLACK-Black-27 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W8 | SP-GND-1 | EMUBLACK-Black-28 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W9 | SP-GND-1 | EMUBLACK-Grey-17 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W10 | SP-GND-1 | EMUBLACK-Grey-24 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W11 | OEM-4-O | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W12 | SP-0V-1 | EMUBLACK-Black-29 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W13 | SP-0V-1 | EMUBLACK-Black-38 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W14 | SP-0V-1 | EMUBLACK-Black-39 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W15 | OEM-4-L | EMUBLACK-Black-26 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W16 | OEM-3-Y | EMUBLACK-Black-8 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W17 | OEM-3-V | EMUBLACK-Black-21 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W18 | OEM-4-M | EMUBLACK-Black-3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W19 | OEM-3-F | EMUBLACK-Grey-8 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W20 | OEM-3-I | EMUBLACK-Grey-16 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W21 | OEM-2-A | EMUBLACK-Grey-7 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W22 | OEM-2-D | EMUBLACK-Grey-15 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W23 | OEM-2-G | EMUBLACK-Grey-23 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W24 | OEM-2-J | EMUBLACK-Grey-6 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W25 | OEM-4-X | EMUBLACK-Black-31 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W26 | OEM-4-V | EMUBLACK-Black-18 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W27 | OEM-4-P | EMUBLACK-Black-5 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W28 | OEM-4-S | EMUBLACK-Grey-18 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W29 | OEM-2-B | EMUBLACK-Grey-21 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W30 | OEM-2-C | EMUBLACK-Grey-13 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W31 | OEM-2-K | EMUBLACK-Grey-5 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W32 | OEM-2-M | EMUBLACK-Grey-20 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W33 | OEM-3-H | EMUBLACK-Grey-12 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W34 | OEM-2-O | EMUBLACK-Grey-4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W35 | OEM-4-D | RLY1-R-OUT | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W36 | SP-14V-1 | RLY1-R-IN | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W37 | SP-14V-1 | RLY1-R-COIL+ | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W38 | RLY1-R-COIL- | EMUBLACK-Grey-19 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W39 | OEM-4-E | RLY2-R-OUT | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W40 | SP-14V-1 | RLY2-R-IN | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W41 | SP-14V-1 | RLY2-R-COIL+ | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W42 | RLY2-R-COIL- | EMUBLACK-Grey-14 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W43 | OEM-3-J | EMUBLACK-Grey-22 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W44 | OEM-4-AE | EMUBLACK-Black-4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W45 | OEM-4-AA | EMUBLACK-Black-17 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W46 | OEM-4-W | EMUBLACK-Black-30 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W47 | OEM-4-R | EMUBLACK-Black-32 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W48 | OEM-4-N | EMUBLACK-Black-35 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W49 | OEM-4-AD | EMUBLACK-Black-9 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W50 | OEM-3-T | EMUBLACK-Black-20 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W51 | OEM-3-S | EMUBLACK-Black-10 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W52 | OEM-4-B | EMUBLACK-Black-23 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W53 | OEM-4-C | EMUBLACK-Black-36 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W54 | OEM-4-F | EMUBLACK-Black-37 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ |
Bench test (before first power-up)
Battery disconnected, ECU and every sensor unplugged. Meter on resistance. Each pair below must read open (OL): a reading means a pinched wire, a stray strand or a mis-pinned cavity. Then check continuity of every wire (last column of the build checklist).
| # | Probe A | Probe B | Expect | Why | Reading |
|---|---|---|---|---|---|
| 1 | EMUBLACK-Black-13 | EMUBLACK-Black-27 | open (OL) | +12 V supply must not touch power ground | |
| 2 | EMUBLACK-Black-13 | EMUBLACK-Black-29 | open (OL) | +12 V supply must not touch sensor ground | |
| 3 | EMUBLACK-Black-26 | EMUBLACK-Black-29 | open (OL) | 5 V sensor reference must not touch sensor ground | |
| 4 | RLY1-R-OUT | EMUBLACK-Black-29 | open (OL) | +12 V supply must not touch sensor ground | |
| 5 | RLY2-R-OUT | EMUBLACK-Black-29 | open (OL) | +12 V supply must not touch sensor ground | |
| 6 | EMUBLACK-Black-13 | EMUBLACK-Black-26 | open (OL) | +12 V supply must not touch 5 V sensor reference | |
| 7 | EMUBLACK-Black-27 | EMUBLACK-Black-26 | open (OL) | power ground must not touch 5 V sensor reference | |
| 8 | EMUBLACK-Black-27 | RLY1-R-OUT | open (OL) | power ground must not touch +12 V supply | |
| 9 | EMUBLACK-Black-27 | RLY2-R-OUT | open (OL) | power ground must not touch +12 V supply | |
| 10 | RLY1-R-OUT | EMUBLACK-Black-26 | open (OL) | +12 V supply must not touch 5 V sensor reference | |
| 11 | RLY2-R-OUT | EMUBLACK-Black-26 | open (OL) | +12 V supply must not touch 5 V sensor reference |
If any reading doesn't match, stop and get help before powering up.
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 | — | W51 | — | 0.5 | OEM-3-S | — | — | — |
| 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 | — | W45 | — | 0.5 | OEM-4-AA | — | — | — |
| 18 | TPS In | — | W26 | — | 0.5 | OEM-4-V | — | — | — |
| 19 | WBO Ip | — | — | — | — | — | — | — | — |
| 2 | EGT in #1 | — | — | — | — | — | — | — | — |
| 20 | VSS In | — | W50 | — | 0.5 | OEM-3-T | — | — | — |
| 21 | Camsync In #1 | — | W17 | — | 0.5 | OEM-3-V | — | — | — |
| 22 | WBO Rcal | — | — | — | — | — | — | — | — |
| 23 | Switch #2 In | — | W52 | — | 0.5 | OEM-4-B | — | — | — |
| 24 | RS232 RXD | — | — | — | — | — | — | — | — |
| 25 | CAN L | — | — | — | — | — | — | — | — |
| 26 | +5V supply | — | W15 | — | 0.5 | OEM-4-L | — | — | — |
| 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-4-M | — | — | — |
| 30 | Analog In #4 | — | W46 | — | 0.5 | OEM-4-W | — | — | — |
| 31 | Analog In #1 | — | W25 | — | 0.5 | OEM-4-X | — | — | — |
| 32 | IAT In | — | W47 | — | 0.5 | OEM-4-R | — | — | — |
| 33 | WBO VGND | — | — | — | — | — | — | — | — |
| 34 | +5V supply | — | — | — | — | — | — | — | — |
| 35 | Analog In #5 | — | W48 | — | 0.5 | OEM-4-N | — | — | — |
| 36 | Switch #3 In | — | W53 | — | 0.5 | OEM-4-C | — | — | — |
| 37 | Analog In #6 | — | W54 | — | 0.5 | OEM-4-F | — | — | — |
| 38 | Sensor Ground | — | W13 | — | 0.5 | SP-0V-1 | — | — | — |
| 39 | Sensor Ground | — | W14 | — | 0.5 | SP-0V-1 | — | — | — |
| 4 | Analog In #2 | — | W44 | — | 0.5 | OEM-4-AE | — | — | — |
| 5 | CLT In | — | W27 | — | 0.5 | OEM-4-P | — | — | — |
| 6 | WBO Vs | — | — | — | — | — | — | — | — |
| 7 | Camsync In #2 | — | — | — | — | — | — | — | — |
| 8 | Primary trigger | — | W16 | — | 0.5 | OEM-3-Y | — | — | — |
| 9 | Flex Fuel In | — | W49 | — | 0.5 | OEM-4-AD | — | — | — |
EMUBLACK-Grey
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Ignition coil #6 | — | — | — | — | — | — | — | — |
| 10 | H-Bridge #1 Winding B | — | — | — | — | — | — | — | — |
| 11 | H-Bridge #2 Winding B | — | — | — | — | — | — | — | — |
| 12 | AUX 5 | — | W33 | — | 0.5 | OEM-3-H | — | — | — |
| 13 | AUX 2 / Injector #8 | — | W30 | — | 0.5 | OEM-2-C | — | — | — |
| 14 | Injector #5 | — | W42 | — | 0.5 | RLY2-R-COIL- | — | — | — |
| 15 | Injector #2 | — | W22 | — | 0.5 | OEM-2-D | — | — | — |
| 16 | Ignition coil #2 | — | W20 | — | 0.5 | OEM-3-I | — | — | — |
| 17 | Power Ground | — | W9 | — | 0.85 | SP-GND-1 | — | — | — |
| 18 | Ignition +12V | — | W28 | — | 0.5 | OEM-4-S | — | — | — |
| 19 | WBO Heater | — | W38 | — | 0.5 | RLY1-R-COIL- | — | — | — |
| 2 | H-Bridge #1 Winding A | — | — | — | — | — | — | — | — |
| 20 | AUX 4 / Tacho | — | W32 | — | 0.5 | OEM-2-M | — | — | — |
| 21 | AUX 1 / Injector #7 | — | W29 | — | 0.5 | OEM-2-B | — | — | — |
| 22 | Injector #6 | — | W43 | — | 0.5 | OEM-3-J | — | — | — |
| 23 | Injector #3 | — | W23 | — | 0.5 | OEM-2-G | — | — | — |
| 24 | Power Ground | — | W10 | — | 0.85 | SP-GND-1 | — | — | — |
| 3 | H-Bridge #2 Winding A | — | — | — | — | — | — | — | — |
| 4 | AUX 6 | — | W34 | — | 0.5 | OEM-2-O | — | — | — |
| 5 | AUX 3 | — | W31 | — | 0.5 | OEM-2-K | — | — | — |
| 6 | Injector #4 | — | W24 | — | 0.5 | OEM-2-J | — | — | — |
| 7 | Injector #1 | — | W21 | — | 0.5 | OEM-2-A | — | — | — |
| 8 | Ignition coil #1 | — | W19 | — | 0.5 | OEM-3-F | — | — | — |
| 9 | Ignition coil #3 | — | — | — | — | — | — | — | — |
OEM-2
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| A | Injector 1 | — | W21 | — | 0.5 | EMUBLACK-Grey-7 | — | — | — |
| B | Cooling fan relay | — | W29 | — | 0.5 | EMUBLACK-Grey-21 | — | — | — |
| C | Condenser fan relay | — | W30 | — | 0.5 | EMUBLACK-Grey-13 | — | — | — |
| D | Injector 2 | — | W22 | — | 0.5 | EMUBLACK-Grey-15 | — | — | — |
| E | EGR valve | — | — | — | — | — | — | — | — |
| F | EGR valve | — | — | — | — | — | — | — | — |
| G | Injector 3 | — | W23 | — | 0.5 | EMUBLACK-Grey-23 | — | — | — |
| H | EGR valve | — | — | — | — | — | — | — | — |
| I | EGR valve | — | — | — | — | — | — | — | — |
| J | Injector 4 | — | W24 | — | 0.5 | EMUBLACK-Grey-6 | — | — | — |
| K | A/C clutch relay | — | W31 | — | 0.5 | EMUBLACK-Grey-5 | — | — | — |
| L | NC | — | — | — | — | — | — | — | — |
| M | Fuel pump relay | — | W32 | — | 0.5 | EMUBLACK-Grey-20 | — | — | — |
| N | VTCS solenoid (intake butterflies) | — | — | — | — | — | — | — | — |
| O | Fuel pump relay (non-immobiliser) | — | W34 | — | 0.5 | EMUBLACK-Grey-4 | — | — | — |
| P | ISC valve +14V feed | — | W1 | — | 0.85 | SP-14V-1 | — | — | — |
| Q | ISC valve low side | — | — | — | — | — | — | — | — |
| R | Malfunction indicator lamp (MIL) | — | — | — | — | — | — | — | — |
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 | Purge solenoid valve | — | — | — | — | — | — | — | — |
| D | EGR boost solenoid | — | — | — | — | — | — | — | — |
| E | NC | — | — | — | — | — | — | — | — |
| F | Ignition 1 (coils 1+4, wasted spark) | — | W19 | — | 0.5 | EMUBLACK-Grey-8 | — | — | — |
| G | NC | — | — | — | — | — | — | — | — |
| H | Main relay | — | W33 | — | 0.5 | EMUBLACK-Grey-12 | — | — | — |
| I | Ignition 2 (coils 2+3, wasted spark) | — | W20 | — | 0.5 | EMUBLACK-Grey-16 | — | — | — |
| J | Front O2 heater | — | W43 | — | 0.5 | EMUBLACK-Grey-22 | — | — | — |
| K | EVAP leak detection pump | — | — | — | — | — | — | — | — |
| L | NC | — | — | — | — | — | — | — | — |
| M | Alternator control | — | — | — | — | — | — | — | — |
| N | NC | — | — | — | — | — | — | — | — |
| O | Tachometer output | — | — | — | — | — | — | — | — |
| P | Rear O2 heater | — | — | — | — | — | — | — | — |
| Q | Data link connector (K-line) | — | — | — | — | — | — | — | — |
| R | NC | — | — | — | — | — | — | — | — |
| S | Immobiliser | — | W51 | — | 0.5 | EMUBLACK-Black-10 | — | — | — |
| T | Vehicle speed | — | W50 | — | 0.5 | EMUBLACK-Black-20 | — | — | — |
| U | Charge lamp | — | — | — | — | — | — | — | — |
| V | Cam position (CMP) | — | W17 | — | 0.5 | EMUBLACK-Black-21 | — | — | — |
| W | NC | — | — | — | — | — | — | — | — |
| X | NC | — | — | — | — | — | — | — | — |
| Y | Crank position (CKP) | — | W16 | — | 0.5 | EMUBLACK-Black-8 | — | — | — |
| Z | NC | — | — | — | — | — | — | — | — |
OEM-4
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| A | Power ground | — | W6 | — | 0.85 | SP-GND-1 | — | — | — |
| AA | Rear O2 signal | — | W45 | — | 0.5 | EMUBLACK-Black-17 | — | — | — |
| AB | NC | — | — | — | — | — | — | — | — |
| AC | Data link connector (DLC TEN, turbo) | — | — | — | — | — | — | — | — |
| AD | Fuel level | — | W49 | — | 0.5 | EMUBLACK-Black-9 | — | — | — |
| AE | BARO/MAP sensor (turbo boost pressure) | — | W44 | — | 0.5 | EMUBLACK-Black-4 | — | — | — |
| AF | ECU power +14V (main relay) | — | W2 | — | 0.85 | SP-14V-1 | — | — | — |
| AG | Constant +12V | — | — | — | — | — | — | — | — |
| AH | EVAP leak detection pump solenoid valve | — | — | — | — | — | — | — | — |
| B | Brake switch | — | W52 | — | 0.5 | EMUBLACK-Black-23 | — | — | — |
| C | Power steering pressure switch | — | W53 | — | 0.5 | EMUBLACK-Black-36 | — | — | — |
| D | Boost control solenoid (turbo) | — | W35 | — | 0.5 | RLY1-R-OUT | — | — | — |
| E | Boost control solenoid (turbo) | — | W39 | — | 0.5 | RLY2-R-OUT | — | — | — |
| F | A/C request | — | W54 | — | 0.5 | EMUBLACK-Black-37 | — | — | — |
| G | NC | — | — | — | — | — | — | — | — |
| H | Neutral switch | — | — | — | — | — | — | — | — |
| I | Clutch switch | — | — | — | — | — | — | — | — |
| J | VTCS vacuum switch | — | — | — | — | — | — | — | — |
| K | NC | — | — | — | — | — | — | — | — |
| L | +5V sensor supply | — | W15 | — | 0.5 | EMUBLACK-Black-26 | — | — | — |
| M | Knock sensor | — | W18 | — | 0.5 | EMUBLACK-Black-3 | — | — | — |
| N | Intake air temperature (IAT) | — | W48 | — | 0.5 | EMUBLACK-Black-35 | — | — | — |
| O | Signal ground | — | W11 | — | 0.5 | SP-0V-1 | — | — | — |
| P | Coolant temperature (ECT) | — | W27 | — | 0.5 | EMUBLACK-Black-5 | — | — | — |
| Q | NC | — | — | — | — | — | — | — | — |
| R | Intake air temperature 2 (IAT2, turbo) | — | W47 | — | 0.5 | EMUBLACK-Black-32 | — | — | — |
| S | Ignition switch (IG1) sense | — | W28 | — | 0.5 | EMUBLACK-Grey-18 | — | — | — |
| T | Generator output voltage (terminal P) | — | — | — | — | — | — | — | — |
| U | NC | — | — | — | — | — | — | — | — |
| V | Throttle position (TPS) | — | W26 | — | 0.5 | EMUBLACK-Black-18 | — | — | — |
| W | Front O2 signal | — | W46 | — | 0.5 | EMUBLACK-Black-30 | — | — | — |
| X | Mass air flow (MAF) | — | W25 | — | 0.5 | EMUBLACK-Black-31 | — | — | — |
| Y | NC | — | — | — | — | — | — | — | — |
| Z | TCM (automatic only) | — | — | — | — | — | — | — | — |
RLY1-R
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| COIL+ | Relay coil positive (switched +12 V) | — | W37 | — | 0.5 | SP-14V-1 | — | — | — |
| COIL- | Relay coil negative (ECU low-side driver) | — | W38 | — | 0.5 | EMUBLACK-Grey-19 | — | — | — |
| IN | Relay contact input (switched +12 V) | — | W36 | — | 0.5 | SP-14V-1 | — | — | — |
| OUT | Relay contact output (switched +12 V to load) | — | W35 | — | 0.5 | OEM-4-D | — | — | — |
RLY2-R
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| COIL+ | Relay coil positive (switched +12 V) | — | W41 | — | 0.5 | SP-14V-1 | — | — | — |
| COIL- | Relay coil negative (ECU low-side driver) | — | W42 | — | 0.5 | EMUBLACK-Grey-14 | — | — | — |
| IN | Relay contact input (switched +12 V) | — | W40 | — | 0.5 | SP-14V-1 | — | — | — |
| OUT | Relay contact output (switched +12 V to load) | — | W39 | — | 0.5 | OEM-4-E | — | — | — |
SP-0V
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W11 | — | 0.5 | OEM-4-O | — | — | — |
| 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-2-P | — | — | — |
| 1 | — | — | W2 | — | 0.85 | OEM-4-AF | — | — | — |
| 1 | — | — | W3 | — | 0.85 | EMUBLACK-Black-13 | — | — | — |
| 1 | — | — | W36 | — | 0.5 | RLY1-R-IN | — | — | — |
| 1 | — | — | W37 | — | 0.5 | RLY1-R-COIL+ | — | — | — |
| 1 | — | — | W40 | — | 0.5 | RLY2-R-IN | — | — | — |
| 1 | — | — | W41 | — | 0.5 | RLY2-R-COIL+ | — | — | — |
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-4-A | — | — | — |
| 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-2-A | Injector 1 | injector_out | EMUBLACK-Grey-7 | Injector #1 | injector_out | corroborated | |
| OEM-2-B | Cooling fan relay | low_side_out | EMUBLACK-Grey-21 | AUX 1 / Injector #7 | low_side_out | corroborated | |
| OEM-2-C | Condenser fan relay | low_side_out | EMUBLACK-Grey-13 | AUX 2 / Injector #8 | low_side_out | corroborated | |
| OEM-2-D | Injector 2 | injector_out | EMUBLACK-Grey-15 | Injector #2 | injector_out | corroborated | |
| OEM-2-E | EGR valve | low_side_out | — | — | — | corroborated | |
| OEM-2-F | EGR valve | low_side_out | — | — | — | corroborated | |
| OEM-2-G | Injector 3 | injector_out | EMUBLACK-Grey-23 | Injector #3 | injector_out | corroborated | |
| OEM-2-H | EGR valve | low_side_out | — | — | — | corroborated | |
| OEM-2-I | EGR valve | low_side_out | — | — | — | corroborated | |
| OEM-2-J | Injector 4 | injector_out | EMUBLACK-Grey-6 | Injector #4 | injector_out | corroborated | |
| OEM-2-K | A/C clutch relay | low_side_out | EMUBLACK-Grey-5 | AUX 3 | low_side_out | corroborated | |
| OEM-2-L | NC | — | — | — | — | single_source | |
| OEM-2-M | Fuel pump relay | low_side_out | EMUBLACK-Grey-20 | AUX 4 / Tacho | low_side_out | corroborated | |
| OEM-2-N | VTCS solenoid (intake butterflies) | low_side_out | — | — | — | corroborated | |
| OEM-2-O | Fuel pump relay (non-immobiliser) | low_side_out | EMUBLACK-Grey-4 | AUX 6 | low_side_out | corroborated | |
| OEM-2-P | ISC valve +14V feed | power_in | EMUBLACK-Black-13 + RLY1-R-COIL+ + RLY1-R-IN + RLY2-R-COIL+ + RLY2-R-IN | Battery +12V + Relay coil positive (switched +12 V) + Relay contact input (switched +12 V) + Relay coil positive (switched +12 V) + Relay contact input (switched +12 V) | power_in + power_out | corroborated | |
| OEM-2-Q | ISC valve low side | low_side_out | — | — | — | corroborated | |
| OEM-2-R | Malfunction indicator lamp (MIL) | low_side_out | — | — | — | corroborated | |
| 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 | corroborated | |
| 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 | corroborated | |
| OEM-3-C | Purge solenoid valve | low_side_out | — | — | — | corroborated | |
| OEM-3-D | EGR boost solenoid | — | — | — | — | conflict | |
| OEM-3-E | NC | — | — | — | — | single_source | |
| OEM-3-F | Ignition 1 (coils 1+4, wasted spark) | ignition_out | EMUBLACK-Grey-8 | Ignition coil #1 | ignition_out | corroborated | |
| OEM-3-G | NC | — | — | — | — | single_source | |
| OEM-3-H | Main relay | low_side_out | EMUBLACK-Grey-12 | AUX 5 | low_side_out | corroborated | |
| OEM-3-I | Ignition 2 (coils 2+3, wasted spark) | ignition_out | EMUBLACK-Grey-16 | Ignition coil #2 | ignition_out | corroborated | |
| OEM-3-J | Front O2 heater | low_side_out | EMUBLACK-Grey-22 | Injector #6 | injector_out | corroborated | |
| OEM-3-K | EVAP leak detection pump | low_side_out | — | — | — | corroborated | |
| OEM-3-L | NC | — | — | — | — | single_source | |
| OEM-3-M | Alternator control | low_side_out | — | — | — | corroborated | |
| OEM-3-N | NC | — | — | — | — | single_source | |
| OEM-3-O | Tachometer output | tacho_out | — | — | — | corroborated | |
| OEM-3-P | Rear O2 heater | low_side_out | — | — | — | corroborated | |
| OEM-3-Q | Data link connector (K-line) | serial | — | — | — | corroborated | |
| OEM-3-R | NC | — | — | — | — | single_source | |
| OEM-3-S | Immobiliser | digital_in | EMUBLACK-Black-10 | Switch #1 In | digital_in | corroborated | |
| OEM-3-T | Vehicle speed | digital_in | EMUBLACK-Black-20 | VSS In | digital_in | corroborated | |
| OEM-3-U | Charge lamp | low_side_out | — | — | — | corroborated | |
| OEM-3-V | Cam position (CMP) | trigger_in | EMUBLACK-Black-21 | Camsync In #1 | trigger_in | corroborated | |
| OEM-3-W | NC | — | — | — | — | single_source | |
| OEM-3-X | NC | — | — | — | — | single_source | |
| OEM-3-Y | Crank position (CKP) | trigger_in | EMUBLACK-Black-8 | Primary trigger | trigger_in | corroborated | |
| OEM-3-Z | NC | — | — | — | — | single_source | |
| OEM-4-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 | corroborated | |
| OEM-4-AA | Rear O2 signal | lambda_nb_in | EMUBLACK-Black-17 | Analog In #3 | analog_in | corroborated | |
| OEM-4-AB | NC | — | — | — | — | single_source | |
| OEM-4-AC | Data link connector (DLC TEN, turbo) | serial | — | — | — | BrY | single_source |
| OEM-4-AD | Fuel level | analog_in | EMUBLACK-Black-9 | Flex Fuel In | analog_in | corroborated | |
| OEM-4-AE | BARO/MAP sensor (turbo boost pressure) | analog_in | EMUBLACK-Black-4 | Analog In #2 | analog_in | LY | single_source |
| OEM-4-AF | ECU power +14V (main relay) | power_in | EMUBLACK-Black-13 + RLY1-R-COIL+ + RLY1-R-IN + RLY2-R-COIL+ + RLY2-R-IN | Battery +12V + Relay coil positive (switched +12 V) + Relay contact input (switched +12 V) + Relay coil positive (switched +12 V) + Relay contact input (switched +12 V) | power_in + power_out | corroborated | |
| OEM-4-AG | Constant +12V | power_in | — | — | — | corroborated | |
| OEM-4-AH | EVAP leak detection pump solenoid valve | low_side_out | — | — | — | corroborated | |
| OEM-4-B | Brake switch | digital_in | EMUBLACK-Black-23 | Switch #2 In | digital_in | corroborated | |
| OEM-4-C | Power steering pressure switch | digital_in | EMUBLACK-Black-36 | Switch #3 In | digital_in | corroborated | |
| OEM-4-D | Boost control solenoid (turbo) | high_side_out | RLY1-R-OUT | Relay contact output (switched +12 V to load) | power_out | Y | single_source |
| OEM-4-E | Boost control solenoid (turbo) | high_side_out | RLY2-R-OUT | Relay contact output (switched +12 V to load) | power_out | Y | single_source |
| OEM-4-F | A/C request | digital_in | EMUBLACK-Black-37 | Analog In #6 | analog_in | corroborated | |
| OEM-4-G | NC | — | — | — | — | single_source | |
| OEM-4-H | Neutral switch | digital_in | — | — | — | corroborated | |
| OEM-4-I | Clutch switch | digital_in | — | — | — | corroborated | |
| OEM-4-J | VTCS vacuum switch | digital_in | — | — | — | corroborated | |
| OEM-4-K | NC | — | — | — | — | single_source | |
| OEM-4-L | +5V sensor supply | vref | EMUBLACK-Black-26 | +5V supply | vref | corroborated | |
| OEM-4-M | Knock sensor | knock_in | EMUBLACK-Black-3 | Knock Sensor in #1 | knock_in | corroborated | |
| OEM-4-N | Intake air temperature (IAT) | temp_in | EMUBLACK-Black-35 | Analog In #5 | analog_in | corroborated | |
| OEM-4-O | Signal ground | sensor_ground | EMUBLACK-Black-29 + EMUBLACK-Black-38 + EMUBLACK-Black-39 | Sensor Ground + Sensor Ground + Sensor Ground | sensor_ground | corroborated | |
| OEM-4-P | Coolant temperature (ECT) | temp_in | EMUBLACK-Black-5 | CLT In | temp_in | corroborated | |
| OEM-4-Q | NC | — | — | — | — | single_source | |
| OEM-4-R | Intake air temperature 2 (IAT2, turbo) | temp_in | EMUBLACK-Black-32 | IAT In | temp_in | VY | single_source |
| OEM-4-S | Ignition switch (IG1) sense | digital_in | EMUBLACK-Grey-18 | Ignition +12V | digital_in | corroborated | |
| OEM-4-T | Generator output voltage (terminal P) | — | — | — | — | corroborated | |
| OEM-4-U | NC | — | — | — | — | single_source | |
| OEM-4-V | Throttle position (TPS) | analog_in | EMUBLACK-Black-18 | TPS In | analog_in | corroborated | |
| OEM-4-W | Front O2 signal | lambda_nb_in | EMUBLACK-Black-30 | Analog In #4 | analog_in | corroborated | |
| OEM-4-X | Mass air flow (MAF) | analog_in | EMUBLACK-Black-31 | Analog In #1 | analog_in | corroborated | |
| OEM-4-Y | NC | — | — | — | — | single_source | |
| OEM-4-Z | TCM (automatic only) | — | — | — | — | corroborated |
Cut list
| Wire | From | To | Gauge (mm²) | Colour | Length | Signal | Ident |
|---|---|---|---|---|---|---|---|
| W1 | OEM-2-P | SP-14V-1 | 0.85 | no route | ISC valve +14V feed | — | |
| W2 | OEM-4-AF | SP-14V-1 | 0.85 | no route | ECU power +14V (main relay) | — | |
| 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-4-A | 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-4-O | 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-4-L | EMUBLACK-Black-26 | 0.5 | no route | +5V sensor supply | — | |
| W16 | OEM-3-Y | EMUBLACK-Black-8 | 0.5 | no route | Crank position (CKP) | — | |
| W17 | OEM-3-V | EMUBLACK-Black-21 | 0.5 | no route | Cam position (CMP) | — | |
| W18 | OEM-4-M | EMUBLACK-Black-3 | 0.5 | no route | Knock sensor | — | |
| W19 | OEM-3-F | EMUBLACK-Grey-8 | 0.5 | no route | Ignition 1 (coils 1+4, wasted spark) | — | |
| W20 | OEM-3-I | EMUBLACK-Grey-16 | 0.5 | no route | Ignition 2 (coils 2+3, wasted spark) | — | |
| W21 | OEM-2-A | EMUBLACK-Grey-7 | 0.5 | no route | Injector 1 | — | |
| W22 | OEM-2-D | EMUBLACK-Grey-15 | 0.5 | no route | Injector 2 | — | |
| W23 | OEM-2-G | EMUBLACK-Grey-23 | 0.5 | no route | Injector 3 | — | |
| W24 | OEM-2-J | EMUBLACK-Grey-6 | 0.5 | no route | Injector 4 | — | |
| W25 | OEM-4-X | EMUBLACK-Black-31 | 0.5 | no route | Mass air flow (MAF) | — | |
| W26 | OEM-4-V | EMUBLACK-Black-18 | 0.5 | no route | Throttle position (TPS) | — | |
| W27 | OEM-4-P | EMUBLACK-Black-5 | 0.5 | no route | Coolant temperature (ECT) | — | |
| W28 | OEM-4-S | EMUBLACK-Grey-18 | 0.5 | no route | Ignition switch (IG1) sense | — | |
| W29 | OEM-2-B | EMUBLACK-Grey-21 | 0.5 | no route | Cooling fan relay | — | |
| W30 | OEM-2-C | EMUBLACK-Grey-13 | 0.5 | no route | Condenser fan relay | — | |
| W31 | OEM-2-K | EMUBLACK-Grey-5 | 0.5 | no route | A/C clutch relay | — | |
| W32 | OEM-2-M | EMUBLACK-Grey-20 | 0.5 | no route | Fuel pump relay | — | |
| W33 | OEM-3-H | EMUBLACK-Grey-12 | 0.5 | no route | Main relay | — | |
| W34 | OEM-2-O | EMUBLACK-Grey-4 | 0.5 | no route | Fuel pump relay (non-immobiliser) | — | |
| W35 | OEM-4-D | RLY1-R-OUT | 0.5 | no route | Boost control solenoid (turbo) | — | |
| W36 | SP-14V-1 | RLY1-R-IN | 0.5 | no route | Relay contact input (switched +12 V) | — | |
| W37 | SP-14V-1 | RLY1-R-COIL+ | 0.5 | no route | Relay coil positive (switched +12 V) | — | |
| W38 | RLY1-R-COIL- | EMUBLACK-Grey-19 | 0.5 | no route | Relay coil negative (ECU low-side driver) | — | |
| W39 | OEM-4-E | RLY2-R-OUT | 0.5 | no route | Boost control solenoid (turbo) | — | |
| W40 | SP-14V-1 | RLY2-R-IN | 0.5 | no route | Relay contact input (switched +12 V) | — | |
| W41 | SP-14V-1 | RLY2-R-COIL+ | 0.5 | no route | Relay coil positive (switched +12 V) | — | |
| W42 | RLY2-R-COIL- | EMUBLACK-Grey-14 | 0.5 | no route | Relay coil negative (ECU low-side driver) | — | |
| W43 | OEM-3-J | EMUBLACK-Grey-22 | 0.5 | no route | Front O2 heater | — | |
| W44 | OEM-4-AE | EMUBLACK-Black-4 | 0.5 | no route | BARO/MAP sensor (turbo boost pressure) | — | |
| W45 | OEM-4-AA | EMUBLACK-Black-17 | 0.5 | no route | Rear O2 signal | — | |
| W46 | OEM-4-W | EMUBLACK-Black-30 | 0.5 | no route | Front O2 signal | — | |
| W47 | OEM-4-R | EMUBLACK-Black-32 | 0.5 | no route | Intake air temperature 2 (IAT2, turbo) | — | |
| W48 | OEM-4-N | EMUBLACK-Black-35 | 0.5 | no route | Intake air temperature (IAT) | — | |
| W49 | OEM-4-AD | EMUBLACK-Black-9 | 0.5 | no route | Fuel level | — | |
| W50 | OEM-3-T | EMUBLACK-Black-20 | 0.5 | no route | Vehicle speed | — | |
| W51 | OEM-3-S | EMUBLACK-Black-10 | 0.5 | no route | Immobiliser | — | |
| W52 | OEM-4-B | EMUBLACK-Black-23 | 0.5 | no route | Brake switch | — | |
| W53 | OEM-4-C | EMUBLACK-Black-36 | 0.5 | no route | Power steering pressure switch | — | |
| W54 | OEM-4-F | EMUBLACK-Black-37 | 0.5 | no route | A/C request | — |
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 (4)
| Severity | Code | Subject | Message |
|---|---|---|---|
| warn | NET_FAMILY | OEM-4-F ↔ EMUBLACK-Black-37 | OEM-4-F "A/C request" [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. |
| info | NET_FAMILY | OEM-3-J ↔ EMUBLACK-Grey-22 | OEM-3-J "Front O2 heater" [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 | NET_FAMILY | OEM-4-N ↔ EMUBLACK-Black-35 | OEM-4-N "Intake air temperature (IAT)" [temp_in] is wired to EMUBLACK-Black-35 "Analog In #5" [analog_in]. Thermistor on a plain analog input needs a pull-up; check the channel can enable one. |
| info | UNMAPPED | OEM | 22 optional OEM pins are not mapped: OEM-2-E EGR valve; OEM-2-F EGR valve; OEM-2-H EGR valve; OEM-2-I EGR valve; OEM-2-N VTCS solenoid (intake butterflies); OEM-2-Q ISC valve low side; OEM-2-R Malfunction indicator lamp (MIL); OEM-3-C Purge solenoid valve; OEM-3-D EGR boost solenoid; OEM-3-K EVAP leak detection pump; OEM-3-M Alternator control; OEM-3-O Tachometer output; OEM-3-P Rear O2 heater; OEM-3-Q Data link connector (K-line); OEM-3-U Charge lamp; OEM-4-AC Data link connector (DLC TEN, turbo); OEM-4-AH EVAP leak detection pump solenoid valve; OEM-4-H Neutral switch; OEM-4-I Clutch switch; OEM-4-J VTCS vacuum switch; OEM-4-T Generator output voltage (terminal P); OEM-4-Z TCM (automatic only) |
Accepted (1)
| Code | Subject | Reason | By |
|---|---|---|---|
| REQUIRED_UNMAPPED | OEM-4-AG | 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 2026-10-17. Review every wire against both manuals before building. Not wired: - OEM-4 AG: Constant +12V: ECUMASTER EMU Black has no battery-constant input; not needed - OEM-3 P: Rear O2 heater: no free heater_low_side/low_side/relay_control/ls_hs/injector on ECUMASTER EMU Black - OEM-2 Q: ISC valve low side: no free low_side/relay_control/heater_low_side/ls_hs/injector rated ≥ 1.0 A on ECUMASTER EMU Black - OEM-2 E: EGR valve: no free low_side/relay_control/heater_low_side/ls_hs/injector on ECUMASTER EMU Black - OEM-2 F: EGR valve: no free low_side/relay_control/heater_low_side/ls_hs/injector on ECUMASTER EMU Black - OEM-2 H: EGR valve: no free low_side/relay_control/heater_low_side/ls_hs/injector on ECUMASTER EMU Black - OEM-2 I: EGR valve: no free low_side/relay_control/heater_low_side/ls_hs/injector on ECUMASTER EMU Black - OEM-2 N: VTCS solenoid (intake butterflies): no free low_side/relay_control/heater_low_side/ls_hs/injector on ECUMASTER EMU Black - OEM-2 R: Malfunction indicator lamp (MIL): no free low_side/relay_control/heater_low_side/ls_hs/injector on ECUMASTER EMU Black - OEM-3 C: Purge solenoid valve: no free low_side/relay_control/heater_low_side/ls_hs/injector on ECUMASTER EMU Black - OEM-3 K: EVAP leak detection pump: no free low_side/relay_control/heater_low_side/ls_hs/injector on ECUMASTER EMU Black - OEM-3 M: Alternator control: no free low_side/relay_control/heater_low_side/ls_hs/injector on ECUMASTER EMU Black - OEM-3 U: Charge lamp: no free low_side/relay_control/heater_low_side/ls_hs/injector on ECUMASTER EMU Black - OEM-4 AH: EVAP leak detection pump solenoid valve: no free low_side/relay_control/heater_low_side/ls_hs/injector on ECUMASTER EMU Black - OEM-3 O: Tachometer output: no free tacho/frequency_out/low_side/ls_hs on ECUMASTER EMU Black - OEM-4 H: Neutral switch: no free switch_in/frequency_in/analog_0_5 on ECUMASTER EMU Black - OEM-4 I: Clutch switch: no free switch_in/frequency_in/analog_0_5 on ECUMASTER EMU Black - OEM-4 J: VTCS vacuum switch: no free switch_in/frequency_in/analog_0_5 on ECUMASTER EMU Black - OEM-3 Q: Data link connector (K-line): no free k_line on ECUMASTER EMU Black - OEM-4 AC: Data link connector (DLC TEN, turbo): no free k_line on ECUMASTER EMU Black - OEM-3 D: EGR boost solenoid: not classified in the library; wire by hand - OEM-4 T: Generator output voltage (terminal P): not classified in the library; wire by hand - OEM-4 Z: TCM (automatic only): not classified in the library; wire by hand
Sources
| Reliability | Kind | Title | URL | Archive | Captured | SHA-256 |
|---|---|---|---|---|---|---|
| 4 | oem_manual | 2005 Mazda MX-5 Miata Engine Performance Control System (PCM terminal voltage reference, BP and BP WITH TC) | https://trull.org/alex/pubmirror/www.mellens.net/mazda/Mazda-Miata-2005/engine_control_system.pdf | — | — | — |
| 4 | vendor_doc | Adaptronic eSel039 Select Plugin ECU for Mazda MX5 / Miata NB8B/C (OEM ECU pinout) | https://www.miataturbo.net/attachments/ecus-tuning-54/04-msm-ecu-pinout-104032/nb8bc_oem_ecu_pinouts-224948d1602912806 | — | — | — |
| 4 | vendor_doc | Bosch relay catalogue (mini ISO relays) | https://www.bosch-ibusiness.com/media/downloads/kataloge/relay/2025_10_bosch_relay_catalogue.pdf | archive | 2026-10-05 | 20344cff1ef3 |
| 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 | archive | 2026-10-05 | 096b2b4df1bd |
| 4 | community_copy | Honda S2000 Service Manual 2000–2008, Fuel and Emissions Systems | https://www.s2000.wiki/view/images/7/7f/Service_Manual_2000-2008.pdf | archive | 2026-10-05 | a470cfc928e9 |
| 4 | vendor_doc | Link G4X MX5NB2X install manual (NB2 2001-05) | https://linkecu.com/documentation/MX5XNB2.pdf | archive | 2026-10-05 | 741efdd9f2c8 |
| 4 | vendor_doc | Omron G8V-RH-1C7T-R-DC12 high-current micro 280 automotive relay datasheet | https://www.alldatasheet.com/datasheet-pdf/pdf/333797/OMRON/G8V-RH-1C7T-R-DC12.html | — | 2026-10-05 | 764a0505a941 |