MX-5 Miata NA8 1994-95 (BP-ZE, 1.8, OBD-I) → Link G5 Voodoo Pro V1 (auto)
MX-5 Miata NA8 1994-95 (BP-ZE, 1.8, OBD-I) — 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.
| 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 | 32 wires · 6 connectors · 2 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-A | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W2 | OEM-2-B | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W3 | OEM-2-K | G5VOODOOPROV-A-A32 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W4 | OEM-2-E | G5VOODOOPROV-A-A8 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W5 | OEM-2-G | G5VOODOOPROV-A-A9 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W6 | OEM-1-G | G5VOODOOPROV-A-A13 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W7 | OEM-1-H | G5VOODOOPROV-A-A12 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W8 | OEM-2-U | G5VOODOOPROV-A-A4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W9 | OEM-2-V | G5VOODOOPROV-A-A3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W10 | OEM-2-Y | G5VOODOOPROV-A-A2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W11 | OEM-2-Z | G5VOODOOPROV-A-A1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W12 | OEM-2-O | G5VOODOOPROV-A-A17 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W13 | OEM-2-M | G5VOODOOPROV-A-A22 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W14 | OEM-2-Q | G5VOODOOPROV-A-A15 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W15 | OEM-1-J | G5VOODOOPROV-A-A21 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W16 | OEM-1-R | G5VOODOOPROV-A-A20 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W17 | OEM-2-S | G5VOODOOPROV-A-A19 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W18 | OEM-2-T | G5VOODOOPROV-A-A18 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W19 | OEM-1-L | G5VOODOOPROV-E-E15 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W20 | OEM-2-L | G5VOODOOPROV-E-E22 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W21 | OEM-2-W | G5VOODOOPROV-A-A29 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W22 | OEM-1-E | G5VOODOOPROV-A-A28 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W23 | OEM-2-R | G5VOODOOPROV-A-A27 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W24 | OEM-2-X | G5VOODOOPROV-A-A26 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W25 | OEM-2-N | G5VOODOOPROV-A-A33 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W26 | OEM-2-P | G5VOODOOPROV-A-A16 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W27 | OEM-1-M | G5VOODOOPROV-A-A30 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W28 | OEM-1-C | G5VOODOOPROV-A-A31 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W29 | OEM-1-O | G5VOODOOPROV-A-A23 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W30 | OEM-1-P | G5VOODOOPROV-B-B21 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W31 | OEM-1-Q | G5VOODOOPROV-B-B20 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W32 | OEM-1-V | G5VOODOOPROV-B-B19 | 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 | OEM-2-A | G5VOODOOPROV-A-A32 | open (OL) | power ground 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
G5VOODOOPROV-A
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| A1 | Injection 4 | — | W11 | — | 0.5 | OEM-2-Z | — | — | — |
| A10 | Ignition 4 | — | — | — | — | — | — | — | — |
| A11 | Ignition 3 | — | — | — | — | — | — | — | — |
| A12 | Ignition 2 | — | W7 | — | 0.5 | OEM-1-H | — | — | — |
| A13 | Ignition 1 | — | W6 | — | 0.5 | OEM-1-G | — | — | — |
| A14 | Analogue Volt 4 | — | — | — | — | — | — | — | — |
| A15 | Analogue Temp 1 | — | W14 | — | 0.5 | OEM-2-Q | — | — | — |
| A16 | Analogue Temp 2 | — | W26 | — | 0.5 | OEM-2-P | — | — | — |
| A17 | Analogue Volt 1 | — | W12 | — | 0.5 | OEM-2-O | — | — | — |
| A18 | Aux 4 | — | W18 | — | 0.5 | OEM-2-T | — | — | — |
| A19 | Aux 3 | — | W17 | — | 0.5 | OEM-2-S | — | — | — |
| A2 | Injection 3 | — | W10 | — | 0.5 | OEM-2-Y | — | — | — |
| A20 | Aux 2 | — | W16 | — | 0.5 | OEM-1-R | — | — | — |
| A21 | Aux 1 | — | W15 | — | 0.5 | OEM-1-J | — | — | — |
| A22 | Analogue Volt 2 | — | W13 | — | 0.5 | OEM-2-M | — | — | — |
| A23 | Digital Input 3 | — | W29 | — | 0.5 | OEM-1-O | — | — | — |
| A26 | Aux 8 | — | W24 | — | 0.5 | OEM-2-X | — | — | — |
| A27 | Aux 7 | — | W23 | — | 0.5 | OEM-2-R | — | — | — |
| A28 | Aux 6 | — | W22 | — | 0.5 | OEM-1-E | — | — | — |
| A29 | Aux 5 | — | W21 | — | 0.5 | OEM-2-W | — | — | — |
| A3 | Injection 2 | — | W9 | — | 0.5 | OEM-2-V | — | — | — |
| A30 | Digital Input 1 | — | W27 | — | 0.5 | OEM-1-M | — | — | — |
| A31 | Digital Input 2 | — | W28 | — | 0.5 | OEM-1-C | — | — | — |
| A32 | +5V Out | — | W3 | — | 0.5 | OEM-2-K | — | — | — |
| A33 | Analogue Volt 3 | — | W25 | — | 0.5 | OEM-2-N | — | — | — |
| A4 | Injection 1 | — | W8 | — | 0.5 | OEM-2-U | — | — | — |
| A6 | Ignition Switch | — | — | — | — | — | — | — | — |
| A8 | Trigger 1 | — | W4 | — | 0.5 | OEM-2-E | — | — | — |
| A9 | Trigger 2 | — | W5 | — | 0.5 | OEM-2-G | — | — | — |
G5VOODOOPROV-B
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| B1 | Injection 8 | — | — | — | — | — | — | — | — |
| B10 | Ignition 8 | — | — | — | — | — | — | — | — |
| B11 | Ignition 7 | — | — | — | — | — | — | — | — |
| B12 | Ignition 6 | — | — | — | — | — | — | — | — |
| B13 | Ignition 5 | — | — | — | — | — | — | — | — |
| B14 | Analogue Volt 14 | — | — | — | — | — | — | — | — |
| B15 | Analogue Volt 6 | — | — | — | — | — | — | — | — |
| B16 | Analogue Volt 7 | — | — | — | — | — | — | — | — |
| B18 | Aux 9 | — | — | — | — | — | — | — | — |
| B19 | Digital Input 6 | — | W32 | — | 0.5 | OEM-1-V | — | — | — |
| B2 | Injection 7 | — | — | — | — | — | — | — | — |
| B20 | Digital Input 5 | — | W31 | — | 0.5 | OEM-1-Q | — | — | — |
| B21 | Digital Input 4 | — | W30 | — | 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 | — | — | — | — | — | — | — | — |
| B30 | Digital Input 7 | — | — | — | — | — | — | — | — |
| B31 | Analogue Volt 10 | — | — | — | — | — | — | — | — |
| B32 | Analogue Volt 11 | — | — | — | — | — | — | — | — |
| B33 | Analogue Volt 5 | — | — | — | — | — | — | — | — |
| B4 | Injection 5 | — | — | — | — | — | — | — | — |
| B6 | Analogue Temp 3 | — | — | — | — | — | — | — | — |
| B7 | Analogue Temp 4 | — | — | — | — | — | — | — | — |
| B8 | Knock 2 | — | — | — | — | — | — | — | — |
| B9 | Knock 1 | — | — | — | — | — | — | — | — |
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 | — | W19 | — | 0.5 | OEM-1-L | — | — | — |
| E16 | RE 1 | — | — | — | — | — | — | — | — |
| E17 | IPE 1 | — | — | — | — | — | — | — | — |
| E18 | APE 1 | — | — | — | — | — | — | — | — |
| E19 | MES 1 | — | — | — | — | — | — | — | — |
| E2 | Injection 11 | — | — | — | — | — | — | — | — |
| E20 | Aux 12 | — | — | — | — | — | — | — | — |
| E22 | Aux 14 / WB Heater 2 | — | W20 | — | 0.5 | OEM-2-L | — | — | — |
| E23 | RE 2 | — | — | — | — | — | — | — | — |
| E24 | IPE 2 | — | — | — | — | — | — | — | — |
| E25 | APE 2 | — | — | — | — | — | — | — | — |
| E26 | MES 2 | — | — | — | — | — | — | — | — |
| E3 | Injection 10 | — | — | — | — | — | — | — | — |
| E4 | Injection 9 | — | — | — | — | — | — | — | — |
| 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) | — | — | — | — | — | — | — | — |
| C | Start signal | — | W28 | — | 0.5 | G5VOODOOPROV-A-A31 | — | — | — |
| D | Data link connector | — | — | — | — | — | — | — | — |
| E | Malfunction indicator lamp (MIL) | — | W22 | — | 0.5 | G5VOODOOPROV-A-A28 | — | — | — |
| G | Ignition 1 (coils 1+4, wasted spark) | — | W6 | — | 0.5 | G5VOODOOPROV-A-A13 | — | — | — |
| H | Ignition 2 (coils 2+3, wasted spark) | — | W7 | — | 0.5 | G5VOODOOPROV-A-A12 | — | — | — |
| I | Powertrain control module (transmission) | — | — | — | — | — | — | — | — |
| J | A/C relay | — | W15 | — | 0.5 | G5VOODOOPROV-A-A21 | — | — | — |
| L | Coolant fan relay | — | W19 | — | 0.5 | G5VOODOOPROV-E-E15 | — | — | — |
| M | Vehicle speed | — | W27 | — | 0.5 | G5VOODOOPROV-A-A30 | — | — | — |
| N | Powertrain control module (transmission) | — | — | — | — | — | — | — | — |
| O | Stop light switch | — | W29 | — | 0.5 | G5VOODOOPROV-A-A23 | — | — | — |
| P | Power steering pressure switch | — | W30 | — | 0.5 | G5VOODOOPROV-B-B21 | — | — | — |
| Q | A/C request | — | W31 | — | 0.5 | G5VOODOOPROV-B-B20 | — | — | — |
| R | Cooling fan relay | — | W16 | — | 0.5 | G5VOODOOPROV-A-A20 | — | — | — |
| S | Heater control unit | — | — | — | — | — | — | — | — |
| T | Unknown | — | — | — | — | — | — | — | — |
| U | Unknown | — | — | — | — | — | — | — | — |
| V | Neutral/clutch switch | — | W32 | — | 0.5 | G5VOODOOPROV-B-B19 | — | — | — |
OEM-2
| 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 | Sensor ground (E2) | — | — | — | — | — | — | — | — |
| D | Sensor ground (E2) | — | — | — | — | — | — | — | — |
| E | Crank position (CAS NE) | — | W4 | — | 0.5 | G5VOODOOPROV-A-A8 | — | — | — |
| F | MAF ground | — | — | — | — | — | — | — | — |
| G | Cam position (CAS G) | — | W5 | — | 0.5 | G5VOODOOPROV-A-A9 | — | — | — |
| H | Data link connector | — | — | — | — | — | — | — | — |
| I | Tachometer output | — | — | — | — | — | — | — | — |
| J | EGR function sensor | — | — | — | — | — | — | — | — |
| K | +5V sensor supply | — | W3 | — | 0.5 | G5VOODOOPROV-A-A32 | — | — | — |
| L | Rear defroster relay | — | W20 | — | 0.5 | G5VOODOOPROV-E-E22 | — | — | — |
| M | Throttle position (TPS) | — | W13 | — | 0.5 | G5VOODOOPROV-A-A22 | — | — | — |
| N | O2 sensor | — | W25 | — | 0.5 | G5VOODOOPROV-A-A33 | — | — | — |
| O | Mass air flow (MAF) | — | W12 | — | 0.5 | G5VOODOOPROV-A-A17 | — | — | — |
| P | Intake air temperature (IAT) | — | W26 | — | 0.5 | G5VOODOOPROV-A-A16 | — | — | — |
| Q | Coolant temperature (ECT) | — | W14 | — | 0.5 | G5VOODOOPROV-A-A15 | — | — | — |
| R | PRC solenoid (fuel pressure regulator) | — | W23 | — | 0.5 | G5VOODOOPROV-A-A27 | — | — | — |
| S | Condenser fan relay | — | W17 | — | 0.5 | G5VOODOOPROV-A-A19 | — | — | — |
| T | Fuel pump relay | — | W18 | — | 0.5 | G5VOODOOPROV-A-A18 | — | — | — |
| U | Injector 1 | — | W8 | — | 0.5 | G5VOODOOPROV-A-A4 | — | — | — |
| V | Injector 2 | — | W9 | — | 0.5 | G5VOODOOPROV-A-A3 | — | — | — |
| W | ISC solenoid | — | W21 | — | 0.5 | G5VOODOOPROV-A-A29 | — | — | — |
| X | Evap purge solenoid | — | W24 | — | 0.5 | G5VOODOOPROV-A-A26 | — | — | — |
| Y | Injector 3 | — | W10 | — | 0.5 | G5VOODOOPROV-A-A2 | — | — | — |
| Z | Injector 4 | — | W11 | — | 0.5 | G5VOODOOPROV-A-A1 | — | — | — |
SP-GND
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W1 | — | 0.85 | OEM-2-A | — | — | — |
| 1 | — | — | W2 | — | 0.85 | OEM-2-B | — | — | — |
Pin map
| OEM point | OEM function | OEM family | Target point | Target function | Target family | Wire colour | Evidence |
|---|---|---|---|---|---|---|---|
| OEM-1-A | Constant +12V | power_in | — | — | — | LR | single_source |
| OEM-1-B | ECU power +14V (main relay) | power_in | — | — | — | WR | single_source |
| OEM-1-C | Start signal | digital_in | G5VOODOOPROV-A-A31 | Digital Input 2 | digital_in | V | single_source |
| OEM-1-D | Data link connector | serial | — | — | — | WG | single_source |
| OEM-1-E | Malfunction indicator lamp (MIL) | low_side_out | G5VOODOOPROV-A-A28 | Aux 6 | switch_out | YB | single_source |
| OEM-1-G | Ignition 1 (coils 1+4, wasted spark) | ignition_out | G5VOODOOPROV-A-A13 | Ignition 1 | ignition_out | BrY | single_source |
| OEM-1-H | Ignition 2 (coils 2+3, wasted spark) | ignition_out | G5VOODOOPROV-A-A12 | Ignition 2 | ignition_out | Br | single_source |
| OEM-1-I | Powertrain control module (transmission) | — | — | — | — | LW | single_source |
| OEM-1-J | A/C relay | low_side_out | G5VOODOOPROV-A-A21 | Aux 1 | low_side_out | single_source | |
| OEM-1-L | Coolant fan relay | low_side_out | G5VOODOOPROV-E-E15 | Aux 13 / WB Heater 1 | low_side_out | BG | single_source |
| OEM-1-M | Vehicle speed | digital_in | G5VOODOOPROV-A-A30 | Digital Input 1 | digital_in | GR | single_source |
| OEM-1-N | Powertrain control module (transmission) | — | — | — | — | R | single_source |
| OEM-1-O | Stop light switch | digital_in | G5VOODOOPROV-A-A23 | Digital Input 3 | digital_in | GB | single_source |
| OEM-1-P | Power steering pressure switch | digital_in | G5VOODOOPROV-B-B21 | Digital Input 4 | digital_in | LY | single_source |
| OEM-1-Q | A/C request | digital_in | G5VOODOOPROV-B-B20 | Digital Input 5 | digital_in | LgB | single_source |
| OEM-1-R | Cooling fan relay | low_side_out | G5VOODOOPROV-A-A20 | Aux 2 | low_side_out | YB | single_source |
| OEM-1-S | Heater control unit | — | — | — | — | LOr | single_source |
| OEM-1-T | Unknown | — | — | — | — | YR | single_source |
| OEM-1-U | Unknown | — | — | — | — | RB | single_source |
| OEM-1-V | Neutral/clutch switch | digital_in | G5VOODOOPROV-B-B19 | Digital Input 6 | digital_in | BrW | single_source |
| OEM-2-A | Power ground | ground | — | — | — | B | single_source |
| OEM-2-B | Power ground | ground | — | — | — | B | single_source |
| OEM-2-C | Sensor ground (E2) | sensor_ground | — | — | — | BLg | corroborated |
| OEM-2-D | Sensor ground (E2) | sensor_ground | — | — | — | BL | corroborated |
| OEM-2-E | Crank position (CAS NE) | trigger_in | G5VOODOOPROV-A-A8 | Trigger 1 | trigger_in | W | single_source |
| OEM-2-F | MAF ground | sensor_ground | — | — | — | BR | single_source |
| OEM-2-G | Cam position (CAS G) | trigger_in | G5VOODOOPROV-A-A9 | Trigger 2 | trigger_in | YL | single_source |
| OEM-2-H | Data link connector | serial | — | — | — | LgY | single_source |
| OEM-2-I | Tachometer output | tacho_out | — | — | — | BW | single_source |
| OEM-2-J | EGR function sensor | — | — | — | — | LgR | single_source |
| OEM-2-K | +5V sensor supply | vref | G5VOODOOPROV-A-A32 | +5V Out | vref | LgW | single_source |
| OEM-2-L | Rear defroster relay | low_side_out | G5VOODOOPROV-E-E22 | Aux 14 / WB Heater 2 | low_side_out | LR | single_source |
| OEM-2-M | Throttle position (TPS) | analog_in | G5VOODOOPROV-A-A22 | Analogue Volt 2 | analog_in | RB | single_source |
| OEM-2-N | O2 sensor | lambda_nb_in | G5VOODOOPROV-A-A33 | Analogue Volt 3 | analog_in | RL | single_source |
| OEM-2-O | Mass air flow (MAF) | analog_in | G5VOODOOPROV-A-A17 | Analogue Volt 1 | analog_in | R | single_source |
| OEM-2-P | Intake air temperature (IAT) | temp_in | G5VOODOOPROV-A-A16 | Analogue Temp 2 | temp_in | RB | single_source |
| OEM-2-Q | Coolant temperature (ECT) | temp_in | G5VOODOOPROV-A-A15 | Analogue Temp 1 | temp_in | LW | single_source |
| OEM-2-R | PRC solenoid (fuel pressure regulator) | low_side_out | G5VOODOOPROV-A-A27 | Aux 7 | switch_out | YG | single_source |
| OEM-2-S | Condenser fan relay | low_side_out | G5VOODOOPROV-A-A19 | Aux 3 | low_side_out | LW | single_source |
| OEM-2-T | Fuel pump relay | low_side_out | G5VOODOOPROV-A-A18 | Aux 4 | low_side_out | Lg | single_source |
| OEM-2-U | Injector 1 | injector_out | G5VOODOOPROV-A-A4 | Injection 1 | injector_out | Y | single_source |
| OEM-2-V | Injector 2 | injector_out | G5VOODOOPROV-A-A3 | Injection 2 | injector_out | YB | single_source |
| OEM-2-W | ISC solenoid | low_side_out | G5VOODOOPROV-A-A29 | Aux 5 | switch_out | LOr | single_source |
| OEM-2-X | Evap purge solenoid | low_side_out | G5VOODOOPROV-A-A26 | Aux 8 | switch_out | YR | single_source |
| OEM-2-Y | Injector 3 | injector_out | G5VOODOOPROV-A-A2 | Injection 3 | injector_out | GW | single_source |
| OEM-2-Z | Injector 4 | injector_out | G5VOODOOPROV-A-A1 | Injection 4 | injector_out | G | single_source |
Cut list
| Wire | From | To | Gauge (mm²) | Colour | Length | Signal | Ident |
|---|---|---|---|---|---|---|---|
| W1 | OEM-2-A | SP-GND-1 | 0.85 | no route | Power ground | — | |
| W2 | OEM-2-B | SP-GND-1 | 0.85 | no route | Power ground | — | |
| W3 | OEM-2-K | G5VOODOOPROV-A-A32 | 0.5 | no route | +5V sensor supply | — | |
| W4 | OEM-2-E | G5VOODOOPROV-A-A8 | 0.5 | no route | Crank position (CAS NE) | — | |
| W5 | OEM-2-G | G5VOODOOPROV-A-A9 | 0.5 | no route | Cam position (CAS G) | — | |
| W6 | OEM-1-G | G5VOODOOPROV-A-A13 | 0.5 | no route | Ignition 1 (coils 1+4, wasted spark) | — | |
| W7 | OEM-1-H | G5VOODOOPROV-A-A12 | 0.5 | no route | Ignition 2 (coils 2+3, wasted spark) | — | |
| W8 | OEM-2-U | G5VOODOOPROV-A-A4 | 0.5 | no route | Injector 1 | — | |
| W9 | OEM-2-V | G5VOODOOPROV-A-A3 | 0.5 | no route | Injector 2 | — | |
| W10 | OEM-2-Y | G5VOODOOPROV-A-A2 | 0.5 | no route | Injector 3 | — | |
| W11 | OEM-2-Z | G5VOODOOPROV-A-A1 | 0.5 | no route | Injector 4 | — | |
| W12 | OEM-2-O | G5VOODOOPROV-A-A17 | 0.5 | no route | Mass air flow (MAF) | — | |
| W13 | OEM-2-M | G5VOODOOPROV-A-A22 | 0.5 | no route | Throttle position (TPS) | — | |
| W14 | OEM-2-Q | G5VOODOOPROV-A-A15 | 0.5 | no route | Coolant temperature (ECT) | — | |
| W15 | OEM-1-J | G5VOODOOPROV-A-A21 | 0.5 | no route | A/C relay | — | |
| W16 | OEM-1-R | G5VOODOOPROV-A-A20 | 0.5 | no route | Cooling fan relay | — | |
| W17 | OEM-2-S | G5VOODOOPROV-A-A19 | 0.5 | no route | Condenser fan relay | — | |
| W18 | OEM-2-T | G5VOODOOPROV-A-A18 | 0.5 | no route | Fuel pump relay | — | |
| W19 | OEM-1-L | G5VOODOOPROV-E-E15 | 0.5 | no route | Coolant fan relay | — | |
| W20 | OEM-2-L | G5VOODOOPROV-E-E22 | 0.5 | no route | Rear defroster relay | — | |
| W21 | OEM-2-W | G5VOODOOPROV-A-A29 | 0.5 | no route | ISC solenoid | — | |
| W22 | OEM-1-E | G5VOODOOPROV-A-A28 | 0.5 | no route | Malfunction indicator lamp (MIL) | — | |
| W23 | OEM-2-R | G5VOODOOPROV-A-A27 | 0.5 | no route | PRC solenoid (fuel pressure regulator) | — | |
| W24 | OEM-2-X | G5VOODOOPROV-A-A26 | 0.5 | no route | Evap purge solenoid | — | |
| W25 | OEM-2-N | G5VOODOOPROV-A-A33 | 0.5 | no route | O2 sensor | — | |
| W26 | OEM-2-P | G5VOODOOPROV-A-A16 | 0.5 | no route | Intake air temperature (IAT) | — | |
| W27 | OEM-1-M | G5VOODOOPROV-A-A30 | 0.5 | no route | Vehicle speed | — | |
| W28 | OEM-1-C | G5VOODOOPROV-A-A31 | 0.5 | no route | Start signal | — | |
| W29 | OEM-1-O | G5VOODOOPROV-A-A23 | 0.5 | no route | Stop light switch | — | |
| W30 | OEM-1-P | G5VOODOOPROV-B-B21 | 0.5 | no route | Power steering pressure switch | — | |
| W31 | OEM-1-Q | G5VOODOOPROV-B-B20 | 0.5 | no route | A/C request | — | |
| W32 | OEM-1-V | G5VOODOOPROV-B-B19 | 0.5 | no route | Neutral/clutch switch | — |
Bill of materials
| Category | Part number | Manufacturer | Description | Qty | Unit |
|---|---|---|---|---|---|
| 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 (16)
| 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-2-A | Required OEM function "Power ground" (ground) is not connected to the new ECU. |
| error | REQUIRED_UNMAPPED | OEM-2-B | Required OEM function "Power ground" (ground) is not connected to the new ECU. |
| error | REQUIRED_UNMAPPED | OEM-2-C | Required OEM function "Sensor ground (E2)" (sensor_ground) is not connected to the new ECU. |
| error | REQUIRED_UNMAPPED | OEM-2-D | Required OEM function "Sensor ground (E2)" (sensor_ground) is not connected to the new ECU. |
| warn | LOAD_UNKNOWN | G5VOODOOPROV-A-A18 | G5VOODOOPROV-A-A18 "Aux 4" drives OEM-2-T 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-2-S Condenser fan 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-J A/C 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-2-W ISC solenoid (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-2-R ↔ G5VOODOOPROV-A-A27 | OEM-2-R "PRC solenoid (fuel pressure regulator)" [low_side_out] is wired to G5VOODOOPROV-A-A27 "Aux 7" [switch_out]. Configure this output as low side. |
| info | NET_FAMILY | OEM-2-W ↔ G5VOODOOPROV-A-A29 | OEM-2-W "ISC solenoid" [low_side_out] is wired to G5VOODOOPROV-A-A29 "Aux 5" [switch_out]. Configure this output as low side. |
| info | NET_FAMILY | OEM-2-X ↔ G5VOODOOPROV-A-A26 | OEM-2-X "Evap purge solenoid" [low_side_out] is wired to G5VOODOOPROV-A-A26 "Aux 8" [switch_out]. Configure this output as low side. |
| info | UNMAPPED | OEM | 10 optional OEM pins are not mapped: OEM-1-D Data link connector; OEM-1-I Powertrain control module (transmission); OEM-1-N Powertrain control module (transmission); OEM-1-S Heater control unit; OEM-1-T Unknown; OEM-1-U Unknown; OEM-2-F MAF ground; OEM-2-H Data link connector; OEM-2-I Tachometer output; OEM-2-J EGR function sensor |
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-2 C: Sensor ground (E2): no rule for class ground_sensor; wire by hand - OEM-2 D: Sensor ground (E2): 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 I: Tachometer output: no free tacho/frequency_out/low_side/ls_hs on Link G5 Voodoo Pro V1 - OEM-1 D: Data link connector: no free k_line on Link G5 Voodoo Pro V1 - OEM-2 H: Data link connector: no free k_line on Link G5 Voodoo Pro V1 - OEM-1 I: Powertrain control module (transmission): not classified in the library; wire by hand - OEM-1 N: Powertrain control module (transmission): not classified in the library; wire by hand - OEM-1 S: Heater control unit: not classified in the library; wire by hand - OEM-1 T: Unknown: not classified in the library; wire by hand - OEM-1 U: Unknown: not classified in the library; wire by hand - OEM-2 F: MAF ground: no rule for class ground_sensor; wire by hand - OEM-2 J: EGR function sensor: not classified in the library; wire by hand
Sources
| Reliability | Kind | Title | URL | Archive | Captured | SHA-256 |
|---|---|---|---|---|---|---|
| 4 | vendor_doc | Link G4X MX5X install manual (NA 1.6/1.8) | https://linkecu.com/documentation/MX5X.pdf | archive | 2026-10-05 | b7f730de9f6e |
| 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 | — | — | — | — |
| 2 | community_copy | rusefi wiki: 1994 Mazda Miata 1.8 (NA8) ECU pinout | https://github.com/rusefi/rusefi/wiki/Mazda-Miata-1994 | — | 2026-10-08 | 075801b907f4 |