VW Golf/Jetta Mk2 1.8 8v Digifant II → Link G5 Voodoo Pro V1 (auto)
VW Golf/Jetta Mk2 1.8 8v Digifant II — 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 | 17 wires · 5 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-A-13 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W2 | OEM-A-19 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W3 | OEM-A-17 | G5VOODOOPROV-A-A32 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W4 | OEM-A-18 | G5VOODOOPROV-A-A9 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W5 | OEM-A-4 | G5VOODOOPROV-B-B9 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W6 | OEM-A-25 | G5VOODOOPROV-A-A13 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W7 | OEM-A-12 | G5VOODOOPROV-A-A4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W8 | OEM-A-3 | G5VOODOOPROV-A-A21 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W9 | OEM-A-21 | G5VOODOOPROV-A-A17 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W10 | OEM-A-10 | G5VOODOOPROV-A-A15 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W11 | OEM-A-22 | G5VOODOOPROV-A-A20 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W12 | OEM-A-23 | G5VOODOOPROV-A-A19 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W13 | OEM-A-2 | G5VOODOOPROV-A-A22 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W14 | OEM-A-9 | G5VOODOOPROV-A-A16 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W15 | OEM-A-1 | G5VOODOOPROV-A-A30 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W16 | OEM-A-11 | G5VOODOOPROV-A-A31 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W17 | OEM-A-16 | G5VOODOOPROV-A-A23 | 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-A-13 | 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 | — | — | — | — | — | — | — | — |
| A10 | Ignition 4 | — | — | — | — | — | — | — | — |
| A11 | Ignition 3 | — | — | — | — | — | — | — | — |
| A12 | Ignition 2 | — | — | — | — | — | — | — | — |
| A13 | Ignition 1 | — | W6 | — | 0.5 | OEM-A-25 | — | — | — |
| A14 | Analogue Volt 4 | — | — | — | — | — | — | — | — |
| A15 | Analogue Temp 1 | — | W10 | — | 0.5 | OEM-A-10 | — | — | — |
| A16 | Analogue Temp 2 | — | W14 | — | 0.5 | OEM-A-9 | — | — | — |
| A17 | Analogue Volt 1 | — | W9 | — | 0.5 | OEM-A-21 | — | — | — |
| A18 | Aux 4 | — | — | — | — | — | — | — | — |
| A19 | Aux 3 | — | W12 | — | 0.5 | OEM-A-23 | — | — | — |
| A2 | Injection 3 | — | — | — | — | — | — | — | — |
| A20 | Aux 2 | — | W11 | — | 0.5 | OEM-A-22 | — | — | — |
| A21 | Aux 1 | — | W8 | — | 0.5 | OEM-A-3 | — | — | — |
| A22 | Analogue Volt 2 | — | W13 | — | 0.5 | OEM-A-2 | — | — | — |
| A23 | Digital Input 3 | — | W17 | — | 0.5 | OEM-A-16 | — | — | — |
| A26 | Aux 8 | — | — | — | — | — | — | — | — |
| A27 | Aux 7 | — | — | — | — | — | — | — | — |
| A28 | Aux 6 | — | — | — | — | — | — | — | — |
| A29 | Aux 5 | — | — | — | — | — | — | — | — |
| A3 | Injection 2 | — | — | — | — | — | — | — | — |
| A30 | Digital Input 1 | — | W15 | — | 0.5 | OEM-A-1 | — | — | — |
| A31 | Digital Input 2 | — | W16 | — | 0.5 | OEM-A-11 | — | — | — |
| A32 | +5V Out | — | W3 | — | 0.5 | OEM-A-17 | — | — | — |
| A33 | Analogue Volt 3 | — | — | — | — | — | — | — | — |
| A4 | Injection 1 | — | W7 | — | 0.5 | OEM-A-12 | — | — | — |
| A6 | Ignition Switch | — | — | — | — | — | — | — | — |
| A8 | Trigger 1 | — | — | — | — | — | — | — | — |
| A9 | Trigger 2 | — | W4 | — | 0.5 | OEM-A-18 | — | — | — |
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 | — | — | — | — | — | — | — | — |
| B2 | Injection 7 | — | — | — | — | — | — | — | — |
| B20 | Digital Input 5 | — | — | — | — | — | — | — | — |
| B21 | Digital Input 4 | — | — | — | — | — | — | — | — |
| 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 | — | W5 | — | 0.5 | OEM-A-4 | — | — | — |
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 | — | — | — | — | — | — | — | — |
| E16 | RE 1 | — | — | — | — | — | — | — | — |
| E17 | IPE 1 | — | — | — | — | — | — | — | — |
| E18 | APE 1 | — | — | — | — | — | — | — | — |
| E19 | MES 1 | — | — | — | — | — | — | — | — |
| E2 | Injection 11 | — | — | — | — | — | — | — | — |
| E20 | Aux 12 | — | — | — | — | — | — | — | — |
| E22 | Aux 14 / WB Heater 2 | — | — | — | — | — | — | — | — |
| 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-A
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Starter signal (term 50) | — | W15 | — | 0.5 | G5VOODOOPROV-A-A30 | — | — | — |
| 10 | Coolant temperature sensor | — | W10 | — | 0.5 | G5VOODOOPROV-A-A15 | — | — | — |
| 11 | Idle/WOT throttle switch | — | W16 | — | 0.5 | G5VOODOOPROV-A-A31 | — | — | — |
| 12 | Injector driver (batch, all 4) | — | W7 | — | 0.5 | G5VOODOOPROV-A-A4 | — | — | — |
| 13 | Ground | — | W1 | — | 0.85 | SP-GND-1 | — | — | — |
| 14 | ECU power (control-unit relay) | — | — | — | — | — | — | — | — |
| 16 | A/C compressor signal | — | W17 | — | 0.5 | G5VOODOOPROV-A-A23 | — | — | — |
| 17 | AFM potentiometer supply | — | W3 | — | 0.5 | G5VOODOOPROV-A-A32 | — | — | — |
| 18 | Hall sender signal (engine speed) | — | W4 | — | 0.5 | G5VOODOOPROV-A-A9 | — | — | — |
| 19 | Ground | — | W2 | — | 0.85 | SP-GND-1 | — | — | — |
| 2 | Oxygen (lambda) sensor signal | — | W13 | — | 0.5 | G5VOODOOPROV-A-A22 | — | — | — |
| 21 | AFM signal | — | W9 | — | 0.5 | G5VOODOOPROV-A-A17 | — | — | — |
| 22 | Idle stabilizer valve coil 1 | — | W11 | — | 0.5 | G5VOODOOPROV-A-A20 | — | — | — |
| 23 | Idle stabilizer valve coil 2 | — | W12 | — | 0.5 | G5VOODOOPROV-A-A19 | — | — | — |
| 25 | Ignition timing signal to TCI | — | W6 | — | 0.5 | G5VOODOOPROV-A-A13 | — | — | — |
| 3 | Fuel pump relay control | — | W8 | — | 0.5 | G5VOODOOPROV-A-A21 | — | — | — |
| 4 | Knock sensor signal | — | W5 | — | 0.5 | G5VOODOOPROV-B-B9 | — | — | — |
| 5 | Knock sensor return | — | — | — | — | — | — | — | — |
| 6 | Sensor ground (CTS/Hall/AFM/throttle) | — | — | — | — | — | — | — | — |
| 7 | Knock sensor shield | — | — | — | — | — | — | — | — |
| 8 | Hall sender supply (distributor) | — | — | — | — | — | — | — | — |
| 9 | Intake air temperature sensor | — | W14 | — | 0.5 | G5VOODOOPROV-A-A16 | — | — | — |
SP-GND
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W1 | — | 0.85 | OEM-A-13 | — | — | — |
| 1 | — | — | W2 | — | 0.85 | OEM-A-19 | — | — | — |
Pin map
| OEM point | OEM function | OEM family | Target point | Target function | Target family | Wire colour | Evidence |
|---|---|---|---|---|---|---|---|
| OEM-A-1 | Starter signal (term 50) | digital_in | G5VOODOOPROV-A-A30 | Digital Input 1 | digital_in | corroborated | |
| OEM-A-10 | Coolant temperature sensor | temp_in | G5VOODOOPROV-A-A15 | Analogue Temp 1 | temp_in | corroborated | |
| OEM-A-11 | Idle/WOT throttle switch | digital_in | G5VOODOOPROV-A-A31 | Digital Input 2 | digital_in | corroborated | |
| OEM-A-12 | Injector driver (batch, all 4) | injector_out | G5VOODOOPROV-A-A4 | Injection 1 | injector_out | corroborated | |
| OEM-A-13 | Ground | ground | — | — | — | corroborated | |
| OEM-A-14 | ECU power (control-unit relay) | power_in | — | — | — | corroborated | |
| OEM-A-16 | A/C compressor signal | digital_in | G5VOODOOPROV-A-A23 | Digital Input 3 | digital_in | corroborated | |
| OEM-A-17 | AFM potentiometer supply | vref | G5VOODOOPROV-A-A32 | +5V Out | vref | corroborated | |
| OEM-A-18 | Hall sender signal (engine speed) | trigger_in | G5VOODOOPROV-A-A9 | Trigger 2 | trigger_in | corroborated | |
| OEM-A-19 | Ground | ground | — | — | — | corroborated | |
| OEM-A-2 | Oxygen (lambda) sensor signal | lambda_nb_in | G5VOODOOPROV-A-A22 | Analogue Volt 2 | analog_in | corroborated | |
| OEM-A-21 | AFM signal | analog_in | G5VOODOOPROV-A-A17 | Analogue Volt 1 | analog_in | corroborated | |
| OEM-A-22 | Idle stabilizer valve coil 1 | low_side_out | G5VOODOOPROV-A-A20 | Aux 2 | low_side_out | corroborated | |
| OEM-A-23 | Idle stabilizer valve coil 2 | low_side_out | G5VOODOOPROV-A-A19 | Aux 3 | low_side_out | corroborated | |
| OEM-A-25 | Ignition timing signal to TCI | ignition_out | G5VOODOOPROV-A-A13 | Ignition 1 | ignition_out | corroborated | |
| OEM-A-3 | Fuel pump relay control | low_side_out | G5VOODOOPROV-A-A21 | Aux 1 | low_side_out | corroborated | |
| OEM-A-4 | Knock sensor signal | knock_in | G5VOODOOPROV-B-B9 | Knock 1 | knock_in | corroborated | |
| OEM-A-5 | Knock sensor return | sensor_ground | — | — | — | corroborated | |
| OEM-A-6 | Sensor ground (CTS/Hall/AFM/throttle) | sensor_ground | — | — | — | corroborated | |
| OEM-A-7 | Knock sensor shield | shield | — | — | — | corroborated | |
| OEM-A-8 | Hall sender supply (distributor) | power_in | — | — | — | corroborated | |
| OEM-A-9 | Intake air temperature sensor | temp_in | G5VOODOOPROV-A-A16 | Analogue Temp 2 | temp_in | corroborated |
Cut list
| Wire | From | To | Gauge (mm²) | Colour | Length | Signal | Ident |
|---|---|---|---|---|---|---|---|
| W1 | OEM-A-13 | SP-GND-1 | 0.85 | no route | Ground | — | |
| W2 | OEM-A-19 | SP-GND-1 | 0.85 | no route | Ground | — | |
| W3 | OEM-A-17 | G5VOODOOPROV-A-A32 | 0.5 | no route | AFM potentiometer supply | — | |
| W4 | OEM-A-18 | G5VOODOOPROV-A-A9 | 0.5 | no route | Hall sender signal (engine speed) | — | |
| W5 | OEM-A-4 | G5VOODOOPROV-B-B9 | 0.5 | no route | Knock sensor signal | — | |
| W6 | OEM-A-25 | G5VOODOOPROV-A-A13 | 0.5 | no route | Ignition timing signal to TCI | — | |
| W7 | OEM-A-12 | G5VOODOOPROV-A-A4 | 0.5 | no route | Injector driver (batch, all 4) | — | |
| W8 | OEM-A-3 | G5VOODOOPROV-A-A21 | 0.5 | no route | Fuel pump relay control | — | |
| W9 | OEM-A-21 | G5VOODOOPROV-A-A17 | 0.5 | no route | AFM signal | — | |
| W10 | OEM-A-10 | G5VOODOOPROV-A-A15 | 0.5 | no route | Coolant temperature sensor | — | |
| W11 | OEM-A-22 | G5VOODOOPROV-A-A20 | 0.5 | no route | Idle stabilizer valve coil 1 | — | |
| W12 | OEM-A-23 | G5VOODOOPROV-A-A19 | 0.5 | no route | Idle stabilizer valve coil 2 | — | |
| W13 | OEM-A-2 | G5VOODOOPROV-A-A22 | 0.5 | no route | Oxygen (lambda) sensor signal | — | |
| W14 | OEM-A-9 | G5VOODOOPROV-A-A16 | 0.5 | no route | Intake air temperature sensor | — | |
| W15 | OEM-A-1 | G5VOODOOPROV-A-A30 | 0.5 | no route | Starter signal (term 50) | — | |
| W16 | OEM-A-11 | G5VOODOOPROV-A-A31 | 0.5 | no route | Idle/WOT throttle switch | — | |
| W17 | OEM-A-16 | G5VOODOOPROV-A-A23 | 0.5 | no route | A/C compressor signal | — |
Bill of materials
| Category | Part number | Manufacturer | Description | Qty | Unit |
|---|
ECU setup sheet
| Role | Engine ref | Engine signal | Sensor | ECU point | ECU function | ECU class | Setup flag |
|---|---|---|---|---|---|---|---|
| No configured channels. | |||||||
Findings
Open (8)
| Severity | Code | Subject | Message |
|---|---|---|---|
| error | PHYS_REQUIRED_OPEN | G5VOODOOPROV-A-A6 | G5VOODOOPROV-A-A6 "Ignition Switch" is required but not wired. |
| error | REQUIRED_UNMAPPED | OEM-A-13 | Required OEM function "Ground" (ground) is not connected to the new ECU. |
| error | REQUIRED_UNMAPPED | OEM-A-14 | Required OEM function "ECU power (control-unit relay)" (power_in) is not connected to the new ECU. |
| error | REQUIRED_UNMAPPED | OEM-A-19 | Required OEM function "Ground" (ground) is not connected to the new ECU. |
| error | REQUIRED_UNMAPPED | OEM-A-6 | Required OEM function "Sensor ground (CTS/Hall/AFM/throttle)" (sensor_ground) is not connected to the new ECU. |
| error | REQUIRED_UNMAPPED | OEM-A-8 | Required OEM function "Hall sender supply (distributor)" (power_in) is not connected to the new ECU. |
| warn | LOAD_UNKNOWN | G5VOODOOPROV-A-A21 | G5VOODOOPROV-A-A21 "Aux 1" drives OEM-A-3 Fuel pump relay control (load 0.2 A) but its current rating is unknown. Check the ECU manual. |
| info | UNMAPPED | OEM | 2 optional OEM pins are not mapped: OEM-A-5 Knock sensor return; OEM-A-7 Knock sensor shield |
Accepted (0)
| Code | Subject | Reason | By |
|---|
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-A 14: ECU power (control-unit relay): no rule for class ecu_main_power; wire by hand - OEM-A 6: Sensor ground (CTS/Hall/AFM/throttle): no rule for class ground_sensor; wire by hand - OEM-A 8: Hall sender supply (distributor): no rule for class sensor_supply_in; 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-A 7: Knock sensor shield: no shield pin on Link G5 Voodoo Pro V1 - OEM-A 5: Knock sensor return: no rule for class ground_sensor; wire by hand
Sources
| Reliability | Kind | Title | URL | Archive | Captured | SHA-256 |
|---|---|---|---|---|---|---|
| 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 | community_copy | a2resource: Digifant II engine controller pinout (VW Golf/Jetta Mk2 1.8 8v) | http://www.a2resource.com/electrical/management/digifant2.html | — | — | — |
| 2 | community_copy | drive2.ru: VW Golf Mk2 PF Digifant II ECU pinout | https://www.drive2.ru/l/9886121 | — | — | — |