VW Golf/Jetta Mk2 1.8 8v Digifant II → ECUMASTER EMU PRO 16 (auto)
VW Golf/Jetta Mk2 1.8 8v Digifant II — ECUMASTER — EMU PRO 16
⚠ 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 | 2: read the Findings page before cutting any wire |
| Size of the job | 31 wires · 8 connectors · 5 part lines |
| Tools | Crimp and extraction tools for each terminal family (see Connectors) · wire strippers · multimeter · heat gun + heat-shrink |
| Terminals | 3-1447221-4 |
| 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-14 | SP-14V-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W2 | SP-14V-1 | EMUPRO16-B-14 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W3 | SP-14V-1 | EMUPRO16-B-8 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W4 | OEM-A-13 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W5 | OEM-A-19 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W6 | SP-GND-1 | EMUPRO16-A-11 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W7 | SP-GND-1 | EMUPRO16-A-17 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W8 | SP-GND-1 | EMUPRO16-A-19 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W9 | SP-GND-1 | EMUPRO16-B-19 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W10 | SP-GND-1 | EMUPRO16-C-30 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W11 | SP-GND-1 | EMUPRO16-D-18 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W12 | OEM-A-5 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W13 | OEM-A-6 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W14 | SP-0V-1 | EMUPRO16-A-20 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W15 | SP-0V-1 | EMUPRO16-B-9 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W16 | SP-0V-1 | EMUPRO16-C-29 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W17 | SP-0V-1 | EMUPRO16-D-17 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W18 | OEM-A-17 | EMUPRO16-A-12 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W19 | OEM-A-4 | EMUPRO16-B-16 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W20 | OEM-A-25 | EMUPRO16-A-30 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W21 | OEM-A-12 | EMUPRO16-A-2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W22 | OEM-A-3 | EMUPRO16-B-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W23 | OEM-A-21 | EMUPRO16-C-31 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W24 | OEM-A-10 | EMUPRO16-C-18 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W25 | OEM-A-22 | EMUPRO16-B-2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W26 | OEM-A-23 | EMUPRO16-B-3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W27 | OEM-A-2 | EMUPRO16-C-32 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W28 | OEM-A-9 | EMUPRO16-C-11 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W29 | OEM-A-1 | EMUPRO16-A-13 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W30 | OEM-A-11 | EMUPRO16-A-22 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W31 | OEM-A-16 | EMUPRO16-A-14 | 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 | EMUPRO16-A-12 | EMUPRO16-A-20 | open (OL) | 5 V sensor reference must not touch sensor ground | |
| 2 | EMUPRO16-B-14 | EMUPRO16-A-20 | open (OL) | +12 V supply must not touch sensor ground | |
| 3 | EMUPRO16-A-11 | EMUPRO16-A-12 | open (OL) | power ground must not touch 5 V sensor reference | |
| 4 | EMUPRO16-A-11 | EMUPRO16-B-14 | open (OL) | power ground must not touch +12 V supply | |
| 5 | EMUPRO16-B-14 | EMUPRO16-A-12 | 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
EMUPRO16-A
Mating face
Wire side
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Ignition 8 | — | — | — | — | — | — | — | — |
| 2 | Injector 1 | — | W21 | — | 0.5 | OEM-A-12 | — | — | — |
| 3 | Injector 2 | — | — | — | — | — | — | — | — |
| 4 | Injector 3 | — | — | — | — | — | — | — | — |
| 5 | Injector 4 | — | — | — | — | — | — | — | — |
| 6 | Injector 5 | — | — | — | — | — | — | — | — |
| 7 | Injector 6 | — | — | — | — | — | — | — | — |
| 8 | Injector 7 | — | — | — | — | — | — | — | — |
| 9 | Injector 8 | — | — | — | — | — | — | — | — |
| 10 | Ignition 7 | — | — | — | — | — | — | — | — |
| 11 | Power GND | — | W6 | — | 0.85 | SP-GND-1 | — | — | — |
| 12 | +5V source A | — | W18 | — | 0.5 | OEM-A-17 | — | — | — |
| 13 | Digital 2 | — | W29 | — | 0.5 | OEM-A-1 | — | — | — |
| 14 | Digital 4 | — | W31 | — | 0.5 | OEM-A-16 | — | — | — |
| 15 | Digital 8 | — | — | — | — | — | — | — | — |
| 16 | Digital 6 (turbo) | — | — | — | — | — | — | — | — |
| 17 | Power GND | — | W7 | — | 0.85 | SP-GND-1 | — | — | — |
| 18 | Ignition 6 | — | — | — | — | — | — | — | — |
| 19 | Power GND | — | W8 | — | 0.85 | SP-GND-1 | — | — | — |
| 20 | Digital GND | — | W14 | — | 0.5 | SP-0V-1 | — | — | — |
| 21 | Digital 1 (crank) | — | — | — | — | — | — | — | — |
| 22 | Digital 3 | — | W30 | — | 0.5 | OEM-A-11 | — | — | — |
| 23 | Digital 7 | — | — | — | — | — | — | — | — |
| 24 | Digital 5 (turbo) | — | — | — | — | — | — | — | — |
| 25 | Auxiliary 9 | — | — | — | — | — | — | — | — |
| 26 | Ignition 5 | — | — | — | — | — | — | — | — |
| 27 | Ignition 4 | — | — | — | — | — | — | — | — |
| 28 | Ignition 3 | — | — | — | — | — | — | — | — |
| 29 | Ignition 2 | — | — | — | — | — | — | — | — |
| 30 | Ignition 1 | — | W20 | — | 0.5 | OEM-A-25 | — | — | — |
| 31 | CAN 1 high (PC comm) | — | — | — | — | — | — | — | — |
| 32 | CAN 1 low (PC comm) | — | — | — | — | — | — | — | — |
| 33 | CAN 2 high | — | — | — | — | — | — | — | — |
| 34 | CAN 2 low | — | — | — | — | — | — | — | — |
EMUPRO16-B
Mating face
Wire side
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Auxiliary 1 (WBO heater) | — | W22 | — | 0.5 | OEM-A-3 | — | — | — |
| 2 | Auxiliary 2 (WBO heater) | — | W25 | — | 0.5 | OEM-A-22 | — | — | — |
| 3 | Auxiliary 3 (WBO heater) | — | W26 | — | 0.5 | OEM-A-23 | — | — | — |
| 4 | Auxiliary 4 (WBO heater) | — | — | — | — | — | — | — | — |
| 5 | Auxiliary 5 | — | — | — | — | — | — | — | — |
| 6 | Auxiliary 6 | — | — | — | — | — | — | — | — |
| 7 | Auxiliary 7 | — | — | — | — | — | — | — | — |
| 8 | +12V supply | — | W3 | — | 0.85 | SP-14V-1 | — | — | — |
| 9 | Digital GND (flash drive) | — | W15 | — | 0.5 | SP-0V-1 | — | — | — |
| 10 | USB D- (flash drive) | — | — | — | — | — | — | — | — |
| 11 | USB D+ (flash drive) | — | — | — | — | — | — | — | — |
| 12 | +5V source A (flash drive) | — | — | — | — | — | — | — | — |
| 13 | Auxiliary 8 | — | — | — | — | — | — | — | — |
| 14 | +12V supply | — | W2 | — | 0.85 | SP-14V-1 | — | — | — |
| 15 | +12V switched | — | — | — | — | — | — | — | — |
| 16 | Knock sensor 1 | — | W19 | — | 0.5 | OEM-A-4 | — | — | — |
| 17 | Knock sensor 2 | — | — | — | — | — | — | — | — |
| 18 | WBO 2 VGND (LSU 4.9) | — | — | — | — | — | — | — | — |
| 19 | Power GND | — | W9 | — | 0.85 | SP-GND-1 | — | — | — |
| 20 | WBO 1 IP (LSU 4.9) | — | — | — | — | — | — | — | — |
| 21 | WBO 1 VS (LSU 4.9) | — | — | — | — | — | — | — | — |
| 22 | WBO 1 RCAL (LSU 4.9) | — | — | — | — | — | — | — | — |
| 23 | WBO 1 VGND (LSU 4.9) | — | — | — | — | — | — | — | — |
| 24 | WBO 2 IP (LSU 4.9) | — | — | — | — | — | — | — | — |
| 25 | WBO 2 VS (LSU 4.9) | — | — | — | — | — | — | — | — |
| 26 | WBO 2 RCAL (LSU 4.9) | — | — | — | — | — | — | — | — |
EMUPRO16-C
Mating face
Wire side
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Auxiliary 10 | — | — | — | — | — | — | — | — |
| 2 | Auxiliary 11 | — | — | — | — | — | — | — | — |
| 3 | Auxiliary 12 | — | — | — | — | — | — | — | — |
| 4 | Analog 7 | — | — | — | — | — | — | — | — |
| 5 | Analog 10 (2k2 pull) | — | — | — | — | — | — | — | — |
| 6 | H-bridge 1A | — | — | — | — | — | — | — | — |
| 7 | H-bridge 2B | — | — | — | — | — | — | — | — |
| 8 | H-bridge 3A | — | — | — | — | — | — | — | — |
| 9 | H-bridge 2A | — | — | — | — | — | — | — | — |
| 10 | Analog 1 (MAP) | — | — | — | — | — | — | — | — |
| 11 | Analog 3 | — | W28 | — | 0.5 | OEM-A-9 | — | — | — |
| 12 | Analog 5 | — | — | — | — | — | — | — | — |
| 13 | Analog 8 | — | — | — | — | — | — | — | — |
| 14 | Analog 11 (2k2 pull) | — | — | — | — | — | — | — | — |
| 15 | Analog 13 (1k pull) | — | — | — | — | — | — | — | — |
| 16 | Analog 15 (330R pull) | — | — | — | — | — | — | — | — |
| 17 | H-bridge 3B | — | — | — | — | — | — | — | — |
| 18 | Analog 2 | — | W24 | — | 0.5 | OEM-A-10 | — | — | — |
| 19 | Analog 4 | — | — | — | — | — | — | — | — |
| 20 | Analog 6 | — | — | — | — | — | — | — | — |
| 21 | Analog 9 (2k2 pull) | — | — | — | — | — | — | — | — |
| 22 | Analog 12 (2k2 pull) | — | — | — | — | — | — | — | — |
| 23 | Analog 14 (1k pull) | — | — | — | — | — | — | — | — |
| 24 | Analog 16 (100R pull) | — | — | — | — | — | — | — | — |
| 25 | H-bridge 1B | — | — | — | — | — | — | — | — |
| 26 | LIN | — | — | — | — | — | — | — | — |
| 27 | +5V source B | — | — | — | — | — | — | — | — |
| 28 | +5V source B | — | — | — | — | — | — | — | — |
| 29 | Analog GND | — | W16 | — | 0.5 | SP-0V-1 | — | — | — |
| 30 | Power GND | — | W10 | — | 0.85 | SP-GND-1 | — | — | — |
| 31 | Precision analog 1 | — | W23 | — | 0.5 | OEM-A-21 | — | — | — |
| 32 | Precision analog 2 | — | W27 | — | 0.5 | OEM-A-2 | — | — | — |
| 33 | Precision analog 3 | — | — | — | — | — | — | — | — |
| 34 | Precision analog 4 | — | — | — | — | — | — | — | — |
EMUPRO16-D
Mating face
Wire side
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Injector 10 | — | — | — | — | — | — | — | — |
| 2 | Injector 11 | — | — | — | — | — | — | — | — |
| 3 | Injector 12 | — | — | — | — | — | — | — | — |
| 4 | Injector 13 | — | — | — | — | — | — | — | — |
| 5 | Injector 14 | — | — | — | — | — | — | — | — |
| 6 | Injector 15 | — | — | — | — | — | — | — | — |
| 7 | Injector 16 | — | — | — | — | — | — | — | — |
| 8 | Injector 9 | — | — | — | — | — | — | — | — |
| 9 | Analog 17 | — | — | — | — | — | — | — | — |
| 10 | Analog 18 | — | — | — | — | — | — | — | — |
| 11 | Digital 9 / Analog 19 | — | — | — | — | — | — | — | — |
| 12 | Digital 10 / Analog 20 | — | — | — | — | — | — | — | — |
| 13 | Auxiliary 13 | — | — | — | — | — | — | — | — |
| 14 | H-bridge 4A | — | — | — | — | — | — | — | — |
| 15 | Precision analog 6 | — | — | — | — | — | — | — | — |
| 16 | Precision analog 8 | — | — | — | — | — | — | — | — |
| 17 | Analog GND | — | W17 | — | 0.5 | SP-0V-1 | — | — | — |
| 18 | Power GND | — | W11 | — | 0.85 | SP-GND-1 | — | — | — |
| 19 | Auxiliary 14 | — | — | — | — | — | — | — | — |
| 20 | H-bridge 4B | — | — | — | — | — | — | — | — |
| 21 | Precision analog 5 | — | — | — | — | — | — | — | — |
| 22 | Precision analog 7 | — | — | — | — | — | — | — | — |
| 23 | Ignition 9 | — | — | — | — | — | — | — | — |
| 24 | Ignition 10 | — | — | — | — | — | — | — | — |
| 25 | Auxiliary 16 | — | — | — | — | — | — | — | — |
| 26 | Auxiliary 15 | — | — | — | — | — | — | — | — |
OEM-A
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Starter signal (term 50) | — | W29 | — | 0.5 | EMUPRO16-A-13 | — | — | — |
| 10 | Coolant temperature sensor | — | W24 | — | 0.5 | EMUPRO16-C-18 | — | — | — |
| 11 | Idle/WOT throttle switch | — | W30 | — | 0.5 | EMUPRO16-A-22 | — | — | — |
| 12 | Injector driver (batch, all 4) | — | W21 | — | 0.5 | EMUPRO16-A-2 | — | — | — |
| 13 | Ground | — | W4 | — | 0.85 | SP-GND-1 | — | — | — |
| 14 | ECU power (control-unit relay) | — | W1 | — | 0.85 | SP-14V-1 | — | — | — |
| 16 | A/C compressor signal | — | W31 | — | 0.5 | EMUPRO16-A-14 | — | — | — |
| 17 | AFM potentiometer supply | — | W18 | — | 0.5 | EMUPRO16-A-12 | — | — | — |
| 18 | Hall sender signal (engine speed) | — | — | — | — | — | — | — | — |
| 19 | Ground | — | W5 | — | 0.85 | SP-GND-1 | — | — | — |
| 2 | Oxygen (lambda) sensor signal | — | W27 | — | 0.5 | EMUPRO16-C-32 | — | — | — |
| 21 | AFM signal | — | W23 | — | 0.5 | EMUPRO16-C-31 | — | — | — |
| 22 | Idle stabilizer valve coil 1 | — | W25 | — | 0.5 | EMUPRO16-B-2 | — | — | — |
| 23 | Idle stabilizer valve coil 2 | — | W26 | — | 0.5 | EMUPRO16-B-3 | — | — | — |
| 25 | Ignition timing signal to TCI | — | W20 | — | 0.5 | EMUPRO16-A-30 | — | — | — |
| 3 | Fuel pump relay control | — | W22 | — | 0.5 | EMUPRO16-B-1 | — | — | — |
| 4 | Knock sensor signal | — | W19 | — | 0.5 | EMUPRO16-B-16 | — | — | — |
| 5 | Knock sensor return | — | W12 | — | 0.5 | SP-0V-1 | — | — | — |
| 6 | Sensor ground (CTS/Hall/AFM/throttle) | — | W13 | — | 0.5 | SP-0V-1 | — | — | — |
| 7 | Knock sensor shield | — | — | — | — | — | — | — | — |
| 8 | Hall sender supply (distributor) | — | — | — | — | — | — | — | — |
| 9 | Intake air temperature sensor | — | W28 | — | 0.5 | EMUPRO16-C-11 | — | — | — |
SP-0V
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W12 | — | 0.5 | OEM-A-5 | — | — | — |
| 1 | — | — | W13 | — | 0.5 | OEM-A-6 | — | — | — |
| 1 | — | — | W14 | — | 0.5 | EMUPRO16-A-20 | — | — | — |
| 1 | — | — | W15 | — | 0.5 | EMUPRO16-B-9 | — | — | — |
| 1 | — | — | W16 | — | 0.5 | EMUPRO16-C-29 | — | — | — |
| 1 | — | — | W17 | — | 0.5 | EMUPRO16-D-17 | — | — | — |
SP-14V
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W1 | — | 0.85 | OEM-A-14 | — | — | — |
| 1 | — | — | W2 | — | 0.85 | EMUPRO16-B-14 | — | — | — |
| 1 | — | — | W3 | — | 0.85 | EMUPRO16-B-8 | — | — | — |
SP-GND
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W4 | — | 0.85 | OEM-A-13 | — | — | — |
| 1 | — | — | W5 | — | 0.85 | OEM-A-19 | — | — | — |
| 1 | — | — | W6 | — | 0.85 | EMUPRO16-A-11 | — | — | — |
| 1 | — | — | W7 | — | 0.85 | EMUPRO16-A-17 | — | — | — |
| 1 | — | — | W8 | — | 0.85 | EMUPRO16-A-19 | — | — | — |
| 1 | — | — | W9 | — | 0.85 | EMUPRO16-B-19 | — | — | — |
| 1 | — | — | W10 | — | 0.85 | EMUPRO16-C-30 | — | — | — |
| 1 | — | — | W11 | — | 0.85 | EMUPRO16-D-18 | — | — | — |
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 | EMUPRO16-A-13 | Digital 2 | digital_in | corroborated | |
| OEM-A-10 | Coolant temperature sensor | temp_in | EMUPRO16-C-18 | Analog 2 | analog_in | corroborated | |
| OEM-A-11 | Idle/WOT throttle switch | digital_in | EMUPRO16-A-22 | Digital 3 | digital_in | corroborated | |
| OEM-A-12 | Injector driver (batch, all 4) | injector_out | EMUPRO16-A-2 | Injector 1 | injector_out | corroborated | |
| OEM-A-13 | Ground | ground | EMUPRO16-A-11 + EMUPRO16-A-17 + EMUPRO16-A-19 + EMUPRO16-B-19 + EMUPRO16-C-30 + EMUPRO16-D-18 | Power GND + Power GND + Power GND + Power GND + Power GND + Power GND | ground | corroborated | |
| OEM-A-14 | ECU power (control-unit relay) | power_in | EMUPRO16-B-14 + EMUPRO16-B-8 | +12V supply + +12V supply | power_in | corroborated | |
| OEM-A-16 | A/C compressor signal | digital_in | EMUPRO16-A-14 | Digital 4 | digital_in | corroborated | |
| OEM-A-17 | AFM potentiometer supply | vref | EMUPRO16-A-12 | +5V source A | vref | corroborated | |
| OEM-A-18 | Hall sender signal (engine speed) | trigger_in | — | — | — | corroborated | |
| OEM-A-19 | Ground | ground | EMUPRO16-A-11 + EMUPRO16-A-17 + EMUPRO16-A-19 + EMUPRO16-B-19 + EMUPRO16-C-30 + EMUPRO16-D-18 | Power GND + Power GND + Power GND + Power GND + Power GND + Power GND | ground | corroborated | |
| OEM-A-2 | Oxygen (lambda) sensor signal | lambda_nb_in | EMUPRO16-C-32 | Precision analog 2 | analog_in | corroborated | |
| OEM-A-21 | AFM signal | analog_in | EMUPRO16-C-31 | Precision analog 1 | analog_in | corroborated | |
| OEM-A-22 | Idle stabilizer valve coil 1 | low_side_out | EMUPRO16-B-2 | Auxiliary 2 (WBO heater) | low_side_out | corroborated | |
| OEM-A-23 | Idle stabilizer valve coil 2 | low_side_out | EMUPRO16-B-3 | Auxiliary 3 (WBO heater) | low_side_out | corroborated | |
| OEM-A-25 | Ignition timing signal to TCI | ignition_out | EMUPRO16-A-30 | Ignition 1 | ignition_out | corroborated | |
| OEM-A-3 | Fuel pump relay control | low_side_out | EMUPRO16-B-1 | Auxiliary 1 (WBO heater) | low_side_out | corroborated | |
| OEM-A-4 | Knock sensor signal | knock_in | EMUPRO16-B-16 | Knock sensor 1 | knock_in | corroborated | |
| OEM-A-5 | Knock sensor return | sensor_ground | EMUPRO16-A-20 + EMUPRO16-B-9 + EMUPRO16-C-29 + EMUPRO16-D-17 | Digital GND + Digital GND (flash drive) + Analog GND + Analog GND | sensor_ground | corroborated | |
| OEM-A-6 | Sensor ground (CTS/Hall/AFM/throttle) | sensor_ground | EMUPRO16-A-20 + EMUPRO16-B-9 + EMUPRO16-C-29 + EMUPRO16-D-17 | Digital GND + Digital GND (flash drive) + Analog GND + Analog GND | 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 | EMUPRO16-C-11 | Analog 3 | analog_in | corroborated |
Cut list
| Wire | From | To | Gauge (mm²) | Colour | Length | Signal | Ident |
|---|---|---|---|---|---|---|---|
| W1 | OEM-A-14 | SP-14V-1 | 0.85 | no route | ECU power (control-unit relay) | — | |
| W2 | SP-14V-1 | EMUPRO16-B-14 | 0.85 | no route | +12V supply | — | |
| W3 | SP-14V-1 | EMUPRO16-B-8 | 0.85 | no route | +12V supply | — | |
| W4 | OEM-A-13 | SP-GND-1 | 0.85 | no route | Ground | — | |
| W5 | OEM-A-19 | SP-GND-1 | 0.85 | no route | Ground | — | |
| W6 | SP-GND-1 | EMUPRO16-A-11 | 0.85 | no route | Power GND | — | |
| W7 | SP-GND-1 | EMUPRO16-A-17 | 0.85 | no route | Power GND | — | |
| W8 | SP-GND-1 | EMUPRO16-A-19 | 0.85 | no route | Power GND | — | |
| W9 | SP-GND-1 | EMUPRO16-B-19 | 0.85 | no route | Power GND | — | |
| W10 | SP-GND-1 | EMUPRO16-C-30 | 0.85 | no route | Power GND | — | |
| W11 | SP-GND-1 | EMUPRO16-D-18 | 0.85 | no route | Power GND | — | |
| W12 | OEM-A-5 | SP-0V-1 | 0.5 | no route | Knock sensor return | — | |
| W13 | OEM-A-6 | SP-0V-1 | 0.5 | no route | Sensor ground (CTS/Hall/AFM/throttle) | — | |
| W14 | SP-0V-1 | EMUPRO16-A-20 | 0.5 | no route | Digital GND | — | |
| W15 | SP-0V-1 | EMUPRO16-B-9 | 0.5 | no route | Digital GND (flash drive) | — | |
| W16 | SP-0V-1 | EMUPRO16-C-29 | 0.5 | no route | Analog GND | — | |
| W17 | SP-0V-1 | EMUPRO16-D-17 | 0.5 | no route | Analog GND | — | |
| W18 | OEM-A-17 | EMUPRO16-A-12 | 0.5 | no route | AFM potentiometer supply | — | |
| W19 | OEM-A-4 | EMUPRO16-B-16 | 0.5 | no route | Knock sensor signal | — | |
| W20 | OEM-A-25 | EMUPRO16-A-30 | 0.5 | no route | Ignition timing signal to TCI | — | |
| W21 | OEM-A-12 | EMUPRO16-A-2 | 0.5 | no route | Injector driver (batch, all 4) | — | |
| W22 | OEM-A-3 | EMUPRO16-B-1 | 0.5 | no route | Fuel pump relay control | — | |
| W23 | OEM-A-21 | EMUPRO16-C-31 | 0.5 | no route | AFM signal | — | |
| W24 | OEM-A-10 | EMUPRO16-C-18 | 0.5 | no route | Coolant temperature sensor | — | |
| W25 | OEM-A-22 | EMUPRO16-B-2 | 0.5 | no route | Idle stabilizer valve coil 1 | — | |
| W26 | OEM-A-23 | EMUPRO16-B-3 | 0.5 | no route | Idle stabilizer valve coil 2 | — | |
| W27 | OEM-A-2 | EMUPRO16-C-32 | 0.5 | no route | Oxygen (lambda) sensor signal | — | |
| W28 | OEM-A-9 | EMUPRO16-C-11 | 0.5 | no route | Intake air temperature sensor | — | |
| W29 | OEM-A-1 | EMUPRO16-A-13 | 0.5 | no route | Starter signal (term 50) | — | |
| W30 | OEM-A-11 | EMUPRO16-A-22 | 0.5 | no route | Idle/WOT throttle switch | — | |
| W31 | OEM-A-16 | EMUPRO16-A-14 | 0.5 | no route | A/C compressor signal | — |
Bill of materials
| Category | Part number | Manufacturer | Description | Qty | Unit |
|---|---|---|---|---|---|
| connector | 1473416-1 | TE | Superseal 1.0 26-way plug, Key 3 | 1.000 | ea |
| connector | 3-1437290-7 | TE | Superseal 1.0 26-way plug | 1.000 | ea |
| connector | 4-1437290-0 | TE | Superseal 1.0 34-way plug, Key 1 | 1.000 | ea |
| connector | 4-1437290-1 | TE | Superseal 1.0 34-way plug, Key 2 | 1.000 | ea |
| terminal | 3-1447221-4 | TE | Superseal 1.0 socket terminal, 20 AWG (0.5 sq mm) | 26.000 | ea |
ECU setup sheet
| Role | Engine ref | Engine signal | Sensor | ECU point | ECU function | ECU class | Setup flag |
|---|---|---|---|---|---|---|---|
| No configured channels. | |||||||
Findings
Open (5)
| Severity | Code | Subject | Message |
|---|---|---|---|
| error | REQUIRED_UNMAPPED | OEM-A-18 | Required OEM function "Hall sender signal (engine speed)" (trigger_in) 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. |
| info | NET_FAMILY | OEM-A-10 ↔ EMUPRO16-C-18 | OEM-A-10 "Coolant temperature sensor" [temp_in] is wired to EMUPRO16-C-18 "Analog 2" [analog_in]. Thermistor on a plain analog input needs a pull-up; check the channel can enable one. |
| info | NET_FAMILY | OEM-A-9 ↔ EMUPRO16-C-11 | OEM-A-9 "Intake air temperature sensor" [temp_in] is wired to EMUPRO16-C-11 "Analog 3" [analog_in]. Thermistor on a plain analog input needs a pull-up; check the channel can enable one. |
| info | UNMAPPED | OEM | 1 optional OEM pins are not mapped: 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: - OEM-A 18: Hall sender signal (engine speed): no free cam_hall/cam_vr/frequency_in input on ECUMASTER EMU PRO 16 - OEM-A 8: Hall sender supply (distributor): no rule for class sensor_supply_in; wire by hand Not wired: - OEM-A 7: Knock sensor shield: no shield pin on ECUMASTER EMU PRO 16 - EMUPRO16-B 15: +12V switched: not fed (the stock ECU has no ignition-sense pin); feed it from a switched-ignition source
Sources
| Reliability | Kind | Title | URL | Archive | Captured | SHA-256 |
|---|---|---|---|---|---|---|
| 4 | vendor_doc | ECUMASTER EMU PRO 16 — pinout (Connectors A/B/C/D) | https://www.ecumaster.com/files/EMU_PRO/EMU_PRO_16_Pinout_v1.0.pdf | archive | 2026-10-05 | 72799bed63fb |
| 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 | — | — | — |