MX-5 Miata NB1 1999-00 (BP-4W) → Link G5 Voodoo Pro V1 (auto)
MX-5 Miata NB1 1999-00 (BP-4W) — Link — G5 Voodoo Pro V1
⚠ NOT CHECKED. Don't build from this.
Drawn by Michael Gnankou · Rev 0 · draft · 2026-10-12
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.
Install modifications
Steps on the car itself, outside the harness. Every harness for this car inherits them.
- Re-route the pressure-sensor vacuum hose to the intake manifoldrequired
Re-route the pressure sensor's (Mazda "EGR boost sensor", pin 3S) vacuum hose directly to the intake manifold, bypassing the EGR boost solenoid. The stock ECU multiplexes baro + MAP through that solenoid: with it off the sensor reads atmosphere, with it energized it reads manifold (2000 FSM P0107/P0108). After re-routing the sensor reads MAP only, so the standalone needs its own barometric source — its onboard baro sensor if fitted, or a separate baro sensor on a spare analog input. (Alternative, not recommended: keep the hose stock and have the ECU energize the solenoid permanently via a low-side output switched with ignition; this costs an output.)
Why: With the solenoid off (its default) the sensor reads atmospheric pressure, not manifold pressure, so a standalone that uses this sensor as its MAP input would read the wrong value.
Where: EGR boost solenoid and the pressure sensor's vacuum hose (sensor signal 3S).
Source: 2000 Mazda MX-5 Miata factory service manual — engine self-diagnostics (DTC P0106/P0107/P0108)
| Status | draft · not yet verified: nobody has reported building and running this harness |
|---|---|
| Open errors | 6: read the Findings page before cutting any wire |
| Size of the job | 45 wires · 7 connectors · 3 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-3-A | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W2 | OEM-3-B | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W3 | OEM-3-C | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W4 | OEM-2-I | G5VOODOOPROV-A-A32 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W5 | OEM-2-J | G5VOODOOPROV-A-A8 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W6 | OEM-2-H | G5VOODOOPROV-A-A9 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W7 | OEM-2-F | G5VOODOOPROV-B-B9 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W8 | OEM-3-G | G5VOODOOPROV-A-A13 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W9 | OEM-3-H | G5VOODOOPROV-A-A12 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W10 | OEM-3-W | G5VOODOOPROV-A-A4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W11 | OEM-3-X | G5VOODOOPROV-A-A3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W12 | OEM-3-Y | G5VOODOOPROV-A-A2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W13 | OEM-3-Z | G5VOODOOPROV-A-A1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W14 | OEM-2-L | G5VOODOOPROV-A-A17 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W15 | OEM-3-E | G5VOODOOPROV-A-A22 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W16 | OEM-2-E | G5VOODOOPROV-A-A15 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W17 | OEM-1-I | G5VOODOOPROV-A-A21 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W18 | OEM-1-R | G5VOODOOPROV-A-A20 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W19 | OEM-1-S | G5VOODOOPROV-A-A19 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W20 | OEM-3-N | G5VOODOOPROV-A-A18 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W21 | OEM-1-U | G5VOODOOPROV-E-E15 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W22 | OEM-3-V | G5VOODOOPROV-E-E22 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W23 | OEM-3-O | G5VOODOOPROV-A-A29 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W24 | OEM-1-E | G5VOODOOPROV-A-A28 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W25 | OEM-1-O | G5VOODOOPROV-A-A27 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W26 | OEM-1-Q | G5VOODOOPROV-A-A26 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W27 | OEM-2-M | G5VOODOOPROV-B-B4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W28 | OEM-2-N | G5VOODOOPROV-B-B3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W29 | OEM-2-O | G5VOODOOPROV-B-B2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W30 | OEM-2-P | G5VOODOOPROV-B-B1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W31 | OEM-3-L | G5VOODOOPROV-E-E4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W32 | OEM-3-Q | G5VOODOOPROV-E-E3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W33 | OEM-3-U | G5VOODOOPROV-E-E2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W34 | OEM-3-S | G5VOODOOPROV-A-A33 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W35 | OEM-2-C | G5VOODOOPROV-A-A14 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W36 | OEM-3-J | G5VOODOOPROV-B-B33 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W37 | OEM-2-B | G5VOODOOPROV-A-A16 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W38 | OEM-2-A | G5VOODOOPROV-B-B15 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W39 | OEM-3-K | G5VOODOOPROV-B-B16 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W40 | OEM-2-D | G5VOODOOPROV-A-A30 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W41 | OEM-1-F | G5VOODOOPROV-A-A31 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W42 | OEM-1-G | G5VOODOOPROV-A-A23 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W43 | OEM-1-P | G5VOODOOPROV-B-B21 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W44 | OEM-1-V | G5VOODOOPROV-B-B20 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W45 | OEM-3-I | G5VOODOOPROV-B-B19 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ |
Bench test (before first power-up)
Pre-power install steps (make these cuts/modifications on the car first, then verify the checks below): Re-route the pressure-sensor vacuum hose to the intake manifold.
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 | G5VOODOOPROV-A-A32 | OEM-3-A | open (OL) | 5 V sensor reference must not touch power ground |
If any reading doesn't match, stop and get help before powering up.
Revisions
| Rev | Label | By | Date |
|---|---|---|---|
| No revisions yet. | |||
Schematic
Connectors
G5VOODOOPROV-A
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| A1 | Injection 4 | — | W13 | — | 0.5 | OEM-3-Z | — | — | — |
| A10 | Ignition 4 | — | — | — | — | — | — | — | — |
| A11 | Ignition 3 | — | — | — | — | — | — | — | — |
| A12 | Ignition 2 | — | W9 | — | 0.5 | OEM-3-H | — | — | — |
| A13 | Ignition 1 | — | W8 | — | 0.5 | OEM-3-G | — | — | — |
| A14 | Analogue Volt 4 | — | W35 | — | 0.5 | OEM-2-C | — | — | — |
| A15 | Analogue Temp 1 | — | W16 | — | 0.5 | OEM-2-E | — | — | — |
| A16 | Analogue Temp 2 | — | W37 | — | 0.5 | OEM-2-B | — | — | — |
| A17 | Analogue Volt 1 | — | W14 | — | 0.5 | OEM-2-L | — | — | — |
| A18 | Aux 4 | — | W20 | — | 0.5 | OEM-3-N | — | — | — |
| A19 | Aux 3 | — | W19 | — | 0.5 | OEM-1-S | — | — | — |
| A2 | Injection 3 | — | W12 | — | 0.5 | OEM-3-Y | — | — | — |
| A20 | Aux 2 | — | W18 | — | 0.5 | OEM-1-R | — | — | — |
| A21 | Aux 1 | — | W17 | — | 0.5 | OEM-1-I | — | — | — |
| A22 | Analogue Volt 2 | — | W15 | — | 0.5 | OEM-3-E | — | — | — |
| A23 | Digital Input 3 | — | W42 | — | 0.5 | OEM-1-G | — | — | — |
| A26 | Aux 8 | — | W26 | — | 0.5 | OEM-1-Q | — | — | — |
| A27 | Aux 7 | — | W25 | — | 0.5 | OEM-1-O | — | — | — |
| A28 | Aux 6 | — | W24 | — | 0.5 | OEM-1-E | — | — | — |
| A29 | Aux 5 | — | W23 | — | 0.5 | OEM-3-O | — | — | — |
| A3 | Injection 2 | — | W11 | — | 0.5 | OEM-3-X | — | — | — |
| A30 | Digital Input 1 | — | W40 | — | 0.5 | OEM-2-D | — | — | — |
| A31 | Digital Input 2 | — | W41 | — | 0.5 | OEM-1-F | — | — | — |
| A32 | +5V Out | — | W4 | — | 0.5 | OEM-2-I | — | — | — |
| A33 | Analogue Volt 3 | — | W34 | — | 0.5 | OEM-3-S | — | — | — |
| A4 | Injection 1 | — | W10 | — | 0.5 | OEM-3-W | — | — | — |
| A6 | Ignition Switch | — | — | — | — | — | — | — | — |
| A8 | Trigger 1 | — | W5 | — | 0.5 | OEM-2-J | — | — | — |
| A9 | Trigger 2 | — | W6 | — | 0.5 | OEM-2-H | — | — | — |
G5VOODOOPROV-B
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| B1 | Injection 8 | — | W30 | — | 0.5 | OEM-2-P | — | — | — |
| B10 | Ignition 8 | — | — | — | — | — | — | — | — |
| B11 | Ignition 7 | — | — | — | — | — | — | — | — |
| B12 | Ignition 6 | — | — | — | — | — | — | — | — |
| B13 | Ignition 5 | — | — | — | — | — | — | — | — |
| B14 | Analogue Volt 14 | — | — | — | — | — | — | — | — |
| B15 | Analogue Volt 6 | — | W38 | — | 0.5 | OEM-2-A | — | — | — |
| B16 | Analogue Volt 7 | — | W39 | — | 0.5 | OEM-3-K | — | — | — |
| B18 | Aux 9 | — | — | — | — | — | — | — | — |
| B19 | Digital Input 6 | — | W45 | — | 0.5 | OEM-3-I | — | — | — |
| B2 | Injection 7 | — | W29 | — | 0.5 | OEM-2-O | — | — | — |
| B20 | Digital Input 5 | — | W44 | — | 0.5 | OEM-1-V | — | — | — |
| B21 | Digital Input 4 | — | W43 | — | 0.5 | OEM-1-P | — | — | — |
| B23 | Analogue Volt 8 | — | — | — | — | — | — | — | — |
| B24 | Analogue Volt 9 | — | — | — | — | — | — | — | — |
| B26 | Aux 10 | — | — | — | — | — | — | — | — |
| B27 | Digital Input 10 | — | — | — | — | — | — | — | — |
| B28 | Digital Input 9 | — | — | — | — | — | — | — | — |
| B29 | Digital Input 8 | — | — | — | — | — | — | — | — |
| B3 | Injection 6 | — | W28 | — | 0.5 | OEM-2-N | — | — | — |
| B30 | Digital Input 7 | — | — | — | — | — | — | — | — |
| B31 | Analogue Volt 10 | — | — | — | — | — | — | — | — |
| B32 | Analogue Volt 11 | — | — | — | — | — | — | — | — |
| B33 | Analogue Volt 5 | — | W36 | — | 0.5 | OEM-3-J | — | — | — |
| B4 | Injection 5 | — | W27 | — | 0.5 | OEM-2-M | — | — | — |
| B6 | Analogue Temp 3 | — | — | — | — | — | — | — | — |
| B7 | Analogue Temp 4 | — | — | — | — | — | — | — | — |
| B8 | Knock 2 | — | — | — | — | — | — | — | — |
| B9 | Knock 1 | — | W7 | — | 0.5 | OEM-2-F | — | — | — |
G5VOODOOPROV-E
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| E1 | Injection 12 | — | — | — | — | — | — | — | — |
| E10 | Injection 14 / Ignition 10 | — | — | — | — | — | — | — | — |
| E11 | Injection 13 / Ignition 9 | — | — | — | — | — | — | — | — |
| E12 | Analogue Volt 12 | — | — | — | — | — | — | — | — |
| E13 | Analogue Volt 13 | — | — | — | — | — | — | — | — |
| E14 | Aux 11 | — | — | — | — | — | — | — | — |
| E15 | Aux 13 / WB Heater 1 | — | W21 | — | 0.5 | OEM-1-U | — | — | — |
| E16 | RE 1 | — | — | — | — | — | — | — | — |
| E17 | IPE 1 | — | — | — | — | — | — | — | — |
| E18 | APE 1 | — | — | — | — | — | — | — | — |
| E19 | MES 1 | — | — | — | — | — | — | — | — |
| E2 | Injection 11 | — | W33 | — | 0.5 | OEM-3-U | — | — | — |
| E20 | Aux 12 | — | — | — | — | — | — | — | — |
| E22 | Aux 14 / WB Heater 2 | — | W22 | — | 0.5 | OEM-3-V | — | — | — |
| E23 | RE 2 | — | — | — | — | — | — | — | — |
| E24 | IPE 2 | — | — | — | — | — | — | — | — |
| E25 | APE 2 | — | — | — | — | — | — | — | — |
| E26 | MES 2 | — | — | — | — | — | — | — | — |
| E3 | Injection 10 | — | W32 | — | 0.5 | OEM-3-Q | — | — | — |
| E4 | Injection 9 | — | W31 | — | 0.5 | OEM-3-L | — | — | — |
| E8 | Injection 16 / Ignition 12 | — | — | — | — | — | — | — | — |
| E9 | Injection 15 / Ignition 11 | — | — | — | — | — | — | — | — |
OEM-1
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| A | Constant +12V | — | — | — | — | — | — | — | — |
| B | ECU power +14V (main relay) | — | — | — | — | — | — | — | — |
| E | Malfunction indicator lamp (MIL) | — | W24 | — | 0.5 | G5VOODOOPROV-A-A28 | — | — | — |
| F | Brake switch | — | W41 | — | 0.5 | G5VOODOOPROV-A-A31 | — | — | — |
| G | Power steering pressure switch | — | W42 | — | 0.5 | G5VOODOOPROV-A-A23 | — | — | — |
| I | Condenser fan relay | — | W17 | — | 0.5 | G5VOODOOPROV-A-A21 | — | — | — |
| O | Alternator control | — | W25 | — | 0.5 | G5VOODOOPROV-A-A27 | — | — | — |
| P | A/C request | — | W43 | — | 0.5 | G5VOODOOPROV-B-B21 | — | — | — |
| Q | Charge lamp | — | W26 | — | 0.5 | G5VOODOOPROV-A-A26 | — | — | — |
| R | Cooling fan relay | — | W18 | — | 0.5 | G5VOODOOPROV-A-A20 | — | — | — |
| S | A/C clutch relay | — | W19 | — | 0.5 | G5VOODOOPROV-A-A19 | — | — | — |
| U | Front O2 heater | — | W21 | — | 0.5 | G5VOODOOPROV-E-E15 | — | — | — |
| V | Neutral switch | — | W44 | — | 0.5 | G5VOODOOPROV-B-B20 | — | — | — |
OEM-2
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| A | Fuel tank pressure | — | W38 | — | 0.5 | G5VOODOOPROV-B-B15 | — | — | — |
| B | Intake air temperature (IAT) | — | W37 | — | 0.5 | G5VOODOOPROV-A-A16 | — | — | — |
| C | Front O2 signal | — | W35 | — | 0.5 | G5VOODOOPROV-A-A14 | — | — | — |
| D | Vehicle speed | — | W40 | — | 0.5 | G5VOODOOPROV-A-A30 | — | — | — |
| E | Coolant temperature (ECT) | — | W16 | — | 0.5 | G5VOODOOPROV-A-A15 | — | — | — |
| F | Knock sensor | — | W7 | — | 0.5 | G5VOODOOPROV-B-B9 | — | — | — |
| H | Cam position (CMP) | — | W6 | — | 0.5 | G5VOODOOPROV-A-A9 | — | — | — |
| I | +5V sensor supply | — | W4 | — | 0.5 | G5VOODOOPROV-A-A32 | — | — | — |
| J | Crank position (CKP) | — | W5 | — | 0.5 | G5VOODOOPROV-A-A8 | — | — | — |
| K | Tachometer output | — | — | — | — | — | — | — | — |
| L | Mass air flow (MAF) | — | W14 | — | 0.5 | G5VOODOOPROV-A-A17 | — | — | — |
| M | EGR valve | — | W27 | — | 0.5 | G5VOODOOPROV-B-B4 | — | — | — |
| N | EGR valve | — | W28 | — | 0.5 | G5VOODOOPROV-B-B3 | — | — | — |
| O | EGR valve | — | W29 | — | 0.5 | G5VOODOOPROV-B-B2 | — | — | — |
| P | EGR valve | — | W30 | — | 0.5 | G5VOODOOPROV-B-B1 | — | — | — |
OEM-3
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| A | Power ground | — | W1 | — | 0.85 | SP-GND-1 | — | — | — |
| B | Power ground | — | W2 | — | 0.85 | SP-GND-1 | — | — | — |
| C | Power ground | — | W3 | — | 0.85 | SP-GND-1 | — | — | — |
| E | Throttle position (TPS) | — | W15 | — | 0.5 | G5VOODOOPROV-A-A22 | — | — | — |
| F | Signal ground | — | — | — | — | — | — | — | — |
| G | Ignition 1 (coils 1+4, wasted spark) | — | W8 | — | 0.5 | G5VOODOOPROV-A-A13 | — | — | — |
| H | Ignition 2 (coils 2+3, wasted spark) | — | W9 | — | 0.5 | G5VOODOOPROV-A-A12 | — | — | — |
| I | Clutch switch | — | W45 | — | 0.5 | G5VOODOOPROV-B-B19 | — | — | — |
| J | Rear O2 signal | — | W36 | — | 0.5 | G5VOODOOPROV-B-B33 | — | — | — |
| K | Fuel level | — | W39 | — | 0.5 | G5VOODOOPROV-B-B16 | — | — | — |
| L | Evap purge solenoid | — | W31 | — | 0.5 | G5VOODOOPROV-E-E4 | — | — | — |
| M | ISC valve +14V feed | — | — | — | — | — | — | — | — |
| N | Fuel pump relay | — | W20 | — | 0.5 | G5VOODOOPROV-A-A18 | — | — | — |
| O | ISC valve low side | — | W23 | — | 0.5 | G5VOODOOPROV-A-A29 | — | — | — |
| Q | VICS solenoid (intake butterflies) | — | W32 | — | 0.5 | G5VOODOOPROV-E-E3 | — | — | — |
| S | Pressure sensor (Mazda: EGR boost sensor) | — | W34 | — | 0.5 | G5VOODOOPROV-A-A33 | — | — | — |
| T | EGR boost solenoid | — | — | — | — | — | — | — | — |
| U | Canister drain cut valve (CDCV) | — | W33 | — | 0.5 | G5VOODOOPROV-E-E2 | — | — | — |
| V | Rear O2 heater | — | W22 | — | 0.5 | G5VOODOOPROV-E-E22 | — | — | — |
| W | Injector 1 | — | W10 | — | 0.5 | G5VOODOOPROV-A-A4 | — | — | — |
| X | Injector 2 | — | W11 | — | 0.5 | G5VOODOOPROV-A-A3 | — | — | — |
| Y | Injector 3 | — | W12 | — | 0.5 | G5VOODOOPROV-A-A2 | — | — | — |
| Z | Injector 4 | — | W13 | — | 0.5 | G5VOODOOPROV-A-A1 | — | — | — |
SP-GND
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W1 | — | 0.85 | OEM-3-A | — | — | — |
| 1 | — | — | W2 | — | 0.85 | OEM-3-B | — | — | — |
| 1 | — | — | W3 | — | 0.85 | OEM-3-C | — | — | — |
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 | — | — | — | single_source | |
| OEM-1-E | Malfunction indicator lamp (MIL) | low_side_out | G5VOODOOPROV-A-A28 | Aux 6 | switch_out | single_source | |
| OEM-1-F | Brake switch | digital_in | G5VOODOOPROV-A-A31 | Digital Input 2 | digital_in | single_source | |
| OEM-1-G | Power steering pressure switch | digital_in | G5VOODOOPROV-A-A23 | Digital Input 3 | digital_in | single_source | |
| OEM-1-I | Condenser fan relay | low_side_out | G5VOODOOPROV-A-A21 | Aux 1 | low_side_out | single_source | |
| OEM-1-O | Alternator control | low_side_out | G5VOODOOPROV-A-A27 | Aux 7 | switch_out | single_source | |
| OEM-1-P | A/C request | digital_in | G5VOODOOPROV-B-B21 | Digital Input 4 | digital_in | single_source | |
| OEM-1-Q | Charge lamp | low_side_out | G5VOODOOPROV-A-A26 | Aux 8 | switch_out | single_source | |
| OEM-1-R | Cooling fan relay | low_side_out | G5VOODOOPROV-A-A20 | Aux 2 | low_side_out | single_source | |
| OEM-1-S | A/C clutch relay | low_side_out | G5VOODOOPROV-A-A19 | Aux 3 | low_side_out | single_source | |
| OEM-1-U | Front O2 heater | low_side_out | G5VOODOOPROV-E-E15 | Aux 13 / WB Heater 1 | low_side_out | single_source | |
| OEM-1-V | Neutral switch | digital_in | G5VOODOOPROV-B-B20 | Digital Input 5 | digital_in | single_source | |
| OEM-2-A | Fuel tank pressure | analog_in | G5VOODOOPROV-B-B15 | Analogue Volt 6 | analog_in | single_source | |
| OEM-2-B | Intake air temperature (IAT) | temp_in | G5VOODOOPROV-A-A16 | Analogue Temp 2 | temp_in | single_source | |
| OEM-2-C | Front O2 signal | lambda_nb_in | G5VOODOOPROV-A-A14 | Analogue Volt 4 | analog_in | single_source | |
| OEM-2-D | Vehicle speed | digital_in | G5VOODOOPROV-A-A30 | Digital Input 1 | digital_in | single_source | |
| OEM-2-E | Coolant temperature (ECT) | temp_in | G5VOODOOPROV-A-A15 | Analogue Temp 1 | temp_in | single_source | |
| OEM-2-F | Knock sensor | knock_in | G5VOODOOPROV-B-B9 | Knock 1 | knock_in | single_source | |
| OEM-2-H | Cam position (CMP) | trigger_in | G5VOODOOPROV-A-A9 | Trigger 2 | trigger_in | single_source | |
| OEM-2-I | +5V sensor supply | vref | G5VOODOOPROV-A-A32 | +5V Out | vref | single_source | |
| OEM-2-J | Crank position (CKP) | trigger_in | G5VOODOOPROV-A-A8 | Trigger 1 | trigger_in | single_source | |
| OEM-2-K | Tachometer output | tacho_out | — | — | — | single_source | |
| OEM-2-L | Mass air flow (MAF) | analog_in | G5VOODOOPROV-A-A17 | Analogue Volt 1 | analog_in | single_source | |
| OEM-2-M | EGR valve | low_side_out | G5VOODOOPROV-B-B4 | Injection 5 | injector_out | single_source | |
| OEM-2-N | EGR valve | low_side_out | G5VOODOOPROV-B-B3 | Injection 6 | injector_out | single_source | |
| OEM-2-O | EGR valve | low_side_out | G5VOODOOPROV-B-B2 | Injection 7 | injector_out | single_source | |
| OEM-2-P | EGR valve | low_side_out | G5VOODOOPROV-B-B1 | Injection 8 | injector_out | single_source | |
| OEM-3-A | Power ground | ground | — | — | — | single_source | |
| OEM-3-B | Power ground | ground | — | — | — | single_source | |
| OEM-3-C | Power ground | ground | — | — | — | single_source | |
| OEM-3-E | Throttle position (TPS) | analog_in | G5VOODOOPROV-A-A22 | Analogue Volt 2 | analog_in | single_source | |
| OEM-3-F | Signal ground | sensor_ground | — | — | — | single_source | |
| OEM-3-G | Ignition 1 (coils 1+4, wasted spark) | ignition_out | G5VOODOOPROV-A-A13 | Ignition 1 | ignition_out | single_source | |
| OEM-3-H | Ignition 2 (coils 2+3, wasted spark) | ignition_out | G5VOODOOPROV-A-A12 | Ignition 2 | ignition_out | single_source | |
| OEM-3-I | Clutch switch | digital_in | G5VOODOOPROV-B-B19 | Digital Input 6 | digital_in | single_source | |
| OEM-3-J | Rear O2 signal | lambda_nb_in | G5VOODOOPROV-B-B33 | Analogue Volt 5 | analog_in | single_source | |
| OEM-3-K | Fuel level | analog_in | G5VOODOOPROV-B-B16 | Analogue Volt 7 | analog_in | single_source | |
| OEM-3-L | Evap purge solenoid | low_side_out | G5VOODOOPROV-E-E4 | Injection 9 | injector_out | single_source | |
| OEM-3-M | ISC valve +14V feed | power_in | — | — | — | single_source | |
| OEM-3-N | Fuel pump relay | low_side_out | G5VOODOOPROV-A-A18 | Aux 4 | low_side_out | single_source | |
| OEM-3-O | ISC valve low side | low_side_out | G5VOODOOPROV-A-A29 | Aux 5 | switch_out | single_source | |
| OEM-3-Q | VICS solenoid (intake butterflies) | low_side_out | G5VOODOOPROV-E-E3 | Injection 10 | injector_out | single_source | |
| OEM-3-S | Pressure sensor (Mazda: EGR boost sensor) | analog_in | G5VOODOOPROV-A-A33 | Analogue Volt 3 | analog_in | single_source | |
| OEM-3-T | EGR boost solenoid | — | — | — | — | single_source | |
| OEM-3-U | Canister drain cut valve (CDCV) | low_side_out | G5VOODOOPROV-E-E2 | Injection 11 | injector_out | single_source | |
| OEM-3-V | Rear O2 heater | low_side_out | G5VOODOOPROV-E-E22 | Aux 14 / WB Heater 2 | low_side_out | single_source | |
| OEM-3-W | Injector 1 | injector_out | G5VOODOOPROV-A-A4 | Injection 1 | injector_out | single_source | |
| OEM-3-X | Injector 2 | injector_out | G5VOODOOPROV-A-A3 | Injection 2 | injector_out | single_source | |
| OEM-3-Y | Injector 3 | injector_out | G5VOODOOPROV-A-A2 | Injection 3 | injector_out | single_source | |
| OEM-3-Z | Injector 4 | injector_out | G5VOODOOPROV-A-A1 | Injection 4 | injector_out | single_source |
Cut list
| Wire | From | To | Gauge (mm²) | Colour | Length | Signal | Ident |
|---|---|---|---|---|---|---|---|
| W1 | OEM-3-A | SP-GND-1 | 0.85 | no route | Power ground | — | |
| W2 | OEM-3-B | SP-GND-1 | 0.85 | no route | Power ground | — | |
| W3 | OEM-3-C | SP-GND-1 | 0.85 | no route | Power ground | — | |
| W4 | OEM-2-I | G5VOODOOPROV-A-A32 | 0.5 | no route | +5V sensor supply | — | |
| W5 | OEM-2-J | G5VOODOOPROV-A-A8 | 0.5 | no route | Crank position (CKP) | — | |
| W6 | OEM-2-H | G5VOODOOPROV-A-A9 | 0.5 | no route | Cam position (CMP) | — | |
| W7 | OEM-2-F | G5VOODOOPROV-B-B9 | 0.5 | no route | Knock sensor | — | |
| W8 | OEM-3-G | G5VOODOOPROV-A-A13 | 0.5 | no route | Ignition 1 (coils 1+4, wasted spark) | — | |
| W9 | OEM-3-H | G5VOODOOPROV-A-A12 | 0.5 | no route | Ignition 2 (coils 2+3, wasted spark) | — | |
| W10 | OEM-3-W | G5VOODOOPROV-A-A4 | 0.5 | no route | Injector 1 | — | |
| W11 | OEM-3-X | G5VOODOOPROV-A-A3 | 0.5 | no route | Injector 2 | — | |
| W12 | OEM-3-Y | G5VOODOOPROV-A-A2 | 0.5 | no route | Injector 3 | — | |
| W13 | OEM-3-Z | G5VOODOOPROV-A-A1 | 0.5 | no route | Injector 4 | — | |
| W14 | OEM-2-L | G5VOODOOPROV-A-A17 | 0.5 | no route | Mass air flow (MAF) | — | |
| W15 | OEM-3-E | G5VOODOOPROV-A-A22 | 0.5 | no route | Throttle position (TPS) | — | |
| W16 | OEM-2-E | G5VOODOOPROV-A-A15 | 0.5 | no route | Coolant temperature (ECT) | — | |
| W17 | OEM-1-I | G5VOODOOPROV-A-A21 | 0.5 | no route | Condenser fan relay | — | |
| W18 | OEM-1-R | G5VOODOOPROV-A-A20 | 0.5 | no route | Cooling fan relay | — | |
| W19 | OEM-1-S | G5VOODOOPROV-A-A19 | 0.5 | no route | A/C clutch relay | — | |
| W20 | OEM-3-N | G5VOODOOPROV-A-A18 | 0.5 | no route | Fuel pump relay | — | |
| W21 | OEM-1-U | G5VOODOOPROV-E-E15 | 0.5 | no route | Front O2 heater | — | |
| W22 | OEM-3-V | G5VOODOOPROV-E-E22 | 0.5 | no route | Rear O2 heater | — | |
| W23 | OEM-3-O | G5VOODOOPROV-A-A29 | 0.5 | no route | ISC valve low side | — | |
| W24 | OEM-1-E | G5VOODOOPROV-A-A28 | 0.5 | no route | Malfunction indicator lamp (MIL) | — | |
| W25 | OEM-1-O | G5VOODOOPROV-A-A27 | 0.5 | no route | Alternator control | — | |
| W26 | OEM-1-Q | G5VOODOOPROV-A-A26 | 0.5 | no route | Charge lamp | — | |
| W27 | OEM-2-M | G5VOODOOPROV-B-B4 | 0.5 | no route | EGR valve | — | |
| W28 | OEM-2-N | G5VOODOOPROV-B-B3 | 0.5 | no route | EGR valve | — | |
| W29 | OEM-2-O | G5VOODOOPROV-B-B2 | 0.5 | no route | EGR valve | — | |
| W30 | OEM-2-P | G5VOODOOPROV-B-B1 | 0.5 | no route | EGR valve | — | |
| W31 | OEM-3-L | G5VOODOOPROV-E-E4 | 0.5 | no route | Evap purge solenoid | — | |
| W32 | OEM-3-Q | G5VOODOOPROV-E-E3 | 0.5 | no route | VICS solenoid (intake butterflies) | — | |
| W33 | OEM-3-U | G5VOODOOPROV-E-E2 | 0.5 | no route | Canister drain cut valve (CDCV) | — | |
| W34 | OEM-3-S | G5VOODOOPROV-A-A33 | 0.5 | no route | Pressure sensor (Mazda: EGR boost sensor) | — | |
| W35 | OEM-2-C | G5VOODOOPROV-A-A14 | 0.5 | no route | Front O2 signal | — | |
| W36 | OEM-3-J | G5VOODOOPROV-B-B33 | 0.5 | no route | Rear O2 signal | — | |
| W37 | OEM-2-B | G5VOODOOPROV-A-A16 | 0.5 | no route | Intake air temperature (IAT) | — | |
| W38 | OEM-2-A | G5VOODOOPROV-B-B15 | 0.5 | no route | Fuel tank pressure | — | |
| W39 | OEM-3-K | G5VOODOOPROV-B-B16 | 0.5 | no route | Fuel level | — | |
| W40 | OEM-2-D | G5VOODOOPROV-A-A30 | 0.5 | no route | Vehicle speed | — | |
| W41 | OEM-1-F | G5VOODOOPROV-A-A31 | 0.5 | no route | Brake switch | — | |
| W42 | OEM-1-G | G5VOODOOPROV-A-A23 | 0.5 | no route | Power steering pressure switch | — | |
| W43 | OEM-1-P | G5VOODOOPROV-B-B21 | 0.5 | no route | A/C request | — | |
| W44 | OEM-1-V | G5VOODOOPROV-B-B20 | 0.5 | no route | Neutral switch | — | |
| W45 | OEM-3-I | G5VOODOOPROV-B-B19 | 0.5 | no route | Clutch switch | — |
Bill of materials
| Category | Part number | Manufacturer | Description | Qty | Unit |
|---|---|---|---|---|---|
| connector | 174514-6 | TE | AMP Multilock .040/.070 hybrid 16-pin female harness plug (Miata NB1 ECU) | 1.000 | ea |
| connector | 174515-6 | TE | AMP Multilock .040/.070 hybrid 22-pin female harness plug (Miata NA/NB ECU) | 1.000 | ea |
| connector | 174516-6 | TE | AMP Multilock .040/.070 hybrid 26-pin female harness plug (Miata NA/NB ECU) | 1.000 | ea |
ECU setup sheet
| Role | Engine ref | Engine signal | Sensor | ECU point | ECU function | ECU class | Setup flag |
|---|---|---|---|---|---|---|---|
| No configured channels. | |||||||
Findings
Open (23)
| Severity | Code | Subject | Message |
|---|---|---|---|
| error | PHYS_REQUIRED_OPEN | G5VOODOOPROV-A-A6 | G5VOODOOPROV-A-A6 "Ignition Switch" is required but not wired. |
| error | REQUIRED_UNMAPPED | OEM-1-B | Required OEM function "ECU power +14V (main relay)" (power_in) is not connected to the new ECU. |
| error | REQUIRED_UNMAPPED | OEM-3-A | Required OEM function "Power ground" (ground) is not connected to the new ECU. |
| error | REQUIRED_UNMAPPED | OEM-3-B | Required OEM function "Power ground" (ground) is not connected to the new ECU. |
| error | REQUIRED_UNMAPPED | OEM-3-C | Required OEM function "Power ground" (ground) is not connected to the new ECU. |
| error | REQUIRED_UNMAPPED | OEM-3-F | Required OEM function "Signal ground" (sensor_ground) is not connected to the new ECU. |
| warn | LOAD_UNKNOWN | G5VOODOOPROV-A-A18 | G5VOODOOPROV-A-A18 "Aux 4" drives OEM-3-N Fuel pump relay (load 0.2 A) but its current rating is unknown. Check the ECU manual. |
| warn | LOAD_UNKNOWN | G5VOODOOPROV-A-A19 | G5VOODOOPROV-A-A19 "Aux 3" drives OEM-1-S A/C clutch relay (load 0.2 A) but its current rating is unknown. Check the ECU manual. |
| warn | LOAD_UNKNOWN | G5VOODOOPROV-A-A20 | G5VOODOOPROV-A-A20 "Aux 2" drives OEM-1-R Cooling fan relay (load 0.2 A) but its current rating is unknown. Check the ECU manual. |
| warn | LOAD_UNKNOWN | G5VOODOOPROV-A-A21 | G5VOODOOPROV-A-A21 "Aux 1" drives OEM-1-I Condenser fan relay (load 0.2 A) but its current rating is unknown. Check the ECU manual. |
| warn | LOAD_UNKNOWN | G5VOODOOPROV-A-A29 | G5VOODOOPROV-A-A29 "Aux 5" drives OEM-3-O ISC valve low side (load 1.0 A) but its current rating is unknown. Check the ECU manual. |
| info | NET_FAMILY | OEM-1-E ↔ G5VOODOOPROV-A-A28 | OEM-1-E "Malfunction indicator lamp (MIL)" [low_side_out] is wired to G5VOODOOPROV-A-A28 "Aux 6" [switch_out]. Configure this output as low side. |
| info | NET_FAMILY | OEM-1-O ↔ G5VOODOOPROV-A-A27 | OEM-1-O "Alternator control" [low_side_out] is wired to G5VOODOOPROV-A-A27 "Aux 7" [switch_out]. Configure this output as low side. |
| info | NET_FAMILY | OEM-1-Q ↔ G5VOODOOPROV-A-A26 | OEM-1-Q "Charge lamp" [low_side_out] is wired to G5VOODOOPROV-A-A26 "Aux 8" [switch_out]. Configure this output as low side. |
| info | NET_FAMILY | OEM-2-M ↔ G5VOODOOPROV-B-B4 | OEM-2-M "EGR valve" [low_side_out] is wired to G5VOODOOPROV-B-B4 "Injection 5" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | NET_FAMILY | OEM-2-N ↔ G5VOODOOPROV-B-B3 | OEM-2-N "EGR valve" [low_side_out] is wired to G5VOODOOPROV-B-B3 "Injection 6" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | NET_FAMILY | OEM-2-O ↔ G5VOODOOPROV-B-B2 | OEM-2-O "EGR valve" [low_side_out] is wired to G5VOODOOPROV-B-B2 "Injection 7" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | NET_FAMILY | OEM-2-P ↔ G5VOODOOPROV-B-B1 | OEM-2-P "EGR valve" [low_side_out] is wired to G5VOODOOPROV-B-B1 "Injection 8" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | NET_FAMILY | OEM-3-L ↔ G5VOODOOPROV-E-E4 | OEM-3-L "Evap purge solenoid" [low_side_out] is wired to G5VOODOOPROV-E-E4 "Injection 9" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | NET_FAMILY | OEM-3-O ↔ G5VOODOOPROV-A-A29 | OEM-3-O "ISC valve low side" [low_side_out] is wired to G5VOODOOPROV-A-A29 "Aux 5" [switch_out]. Configure this output as low side. |
| info | NET_FAMILY | OEM-3-Q ↔ G5VOODOOPROV-E-E3 | OEM-3-Q "VICS solenoid (intake butterflies)" [low_side_out] is wired to G5VOODOOPROV-E-E3 "Injection 10" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | NET_FAMILY | OEM-3-U ↔ G5VOODOOPROV-E-E2 | OEM-3-U "Canister drain cut valve (CDCV)" [low_side_out] is wired to G5VOODOOPROV-E-E2 "Injection 11" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | UNMAPPED | OEM | 3 optional OEM pins are not mapped: OEM-2-K Tachometer output; OEM-3-M ISC valve +14V feed; OEM-3-T EGR boost solenoid |
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 2026-10-11. Review every wire against both manuals before building. Open items: - Main-relay feed: no ecu_main_power pin on the stock or the new ECU - Link G5 Voodoo Pro V1: no power-ground pins in the library - Link G5 Voodoo Pro V1: no sensor-ground pin in the library - OEM-1 B: ECU power +14V (main relay): no rule for class ecu_main_power; wire by hand - OEM-3 F: Signal ground: no rule for class ground_sensor; wire by hand - G5VOODOOPROV-A A6: Ignition Switch: required by Link G5 Voodoo Pro V1 but no stock pin feeds it; wire by hand Not wired: - OEM-1 A: Constant +12V: Link G5 Voodoo Pro V1 has no battery-constant input; not needed - OEM-2 K: Tachometer output: no free tacho/frequency_out/low_side/ls_hs on Link G5 Voodoo Pro V1 - OEM-3 M: ISC valve +14V feed: no rule for class switched_feed; wire by hand - OEM-3 T: EGR boost solenoid: not classified in the library; wire by hand
Sources
| Reliability | Kind | Title | URL | Archive | Captured | SHA-256 |
|---|---|---|---|---|---|---|
| 4 | vendor_doc | Link G4X MX5NB1X install manual (NB1 1999-00) | https://linkecu.com/documentation/MX5XNB1.pdf | archive | 2026-10-05 | 2e36c91270cc |
| 4 | vendor_doc | Link G5 Voodoo Pro V1 Installer I/O Table | https://kb.linkecu.com/__attachments/a_5cf0fc044bcfb915ac75562b29399beb93e47860e38990b3c01614530f927686/G5%20Voodoo%20Pro%20V1%20Installer%20IO%20Table.pdf | — | — | — |
| 2 | expert_report | Justin Barrera — Miata NA/NB wiring corrections | — | — | — | — |