VW Corrado VR6 12v (AAA) Motronic M2.9 OBD1 → ECUMASTER EMU PRO 16 (auto)
VW Corrado VR6 12v (AAA) Motronic M2.9 OBD1 — 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 | 1: read the Findings page before cutting any wire |
| Size of the job | 52 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-23 | 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-1 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W5 | OEM-A-10 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W6 | OEM-A-55 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W7 | OEM-A-56 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W8 | OEM-A-7 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W9 | SP-GND-1 | EMUPRO16-A-11 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W10 | SP-GND-1 | EMUPRO16-A-17 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W11 | SP-GND-1 | EMUPRO16-A-19 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W12 | SP-GND-1 | EMUPRO16-B-19 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W13 | SP-GND-1 | EMUPRO16-C-30 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W14 | SP-GND-1 | EMUPRO16-D-18 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W15 | OEM-A-16 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W16 | OEM-A-33 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W17 | OEM-A-67 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W18 | SP-0V-1 | EMUPRO16-A-20 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W19 | SP-0V-1 | EMUPRO16-B-9 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W20 | SP-0V-1 | EMUPRO16-C-29 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W21 | SP-0V-1 | EMUPRO16-D-17 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W22 | OEM-A-41 | EMUPRO16-A-12 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W23 | OEM-A-68 | EMUPRO16-A-21 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W24 | OEM-A-34 | EMUPRO16-B-16 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W25 | OEM-A-8 | EMUPRO16-A-30 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W26 | OEM-A-60 | EMUPRO16-A-29 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W27 | OEM-A-52 | EMUPRO16-A-28 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W28 | OEM-A-24 | EMUPRO16-A-2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W29 | OEM-A-3 | EMUPRO16-A-3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W30 | OEM-A-26 | EMUPRO16-A-4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W31 | OEM-A-4 | EMUPRO16-A-5 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W32 | OEM-A-25 | EMUPRO16-A-6 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W33 | OEM-A-2 | EMUPRO16-A-7 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W34 | OEM-A-38 | EMUPRO16-B-15 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W35 | OEM-A-17 | EMUPRO16-C-31 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W36 | OEM-A-40 | EMUPRO16-C-18 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W37 | OEM-A-14 | EMUPRO16-C-32 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W38 | OEM-A-49 | EMUPRO16-B-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W39 | OEM-A-6 | EMUPRO16-B-2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W40 | OEM-A-9 | EMUPRO16-B-3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W41 | OEM-A-27 | EMUPRO16-B-4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W42 | OEM-A-31 | EMUPRO16-B-5 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W43 | OEM-A-5 | EMUPRO16-B-6 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W44 | OEM-A-53 | EMUPRO16-B-7 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W45 | OEM-A-22 | EMUPRO16-B-13 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W46 | OEM-A-51 | EMUPRO16-A-25 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W47 | OEM-A-20 | EMUPRO16-C-11 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W48 | OEM-A-15 | EMUPRO16-C-33 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W49 | OEM-A-36 | EMUPRO16-C-19 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W50 | OEM-A-65 | EMUPRO16-A-13 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W51 | OEM-A-37 | EMUPRO16-A-22 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W52 | OEM-A-39 | 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-11 | EMUPRO16-A-12 | open (OL) | power ground must not touch 5 V sensor reference | |
| 2 | EMUPRO16-A-11 | EMUPRO16-B-14 | open (OL) | power ground must not touch +12 V supply | |
| 3 | EMUPRO16-A-20 | EMUPRO16-A-12 | open (OL) | sensor ground must not touch 5 V sensor reference | |
| 4 | EMUPRO16-A-20 | EMUPRO16-B-14 | open (OL) | sensor 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 | — | W28 | — | 0.5 | OEM-A-24 | — | — | — |
| 3 | Injector 2 | — | W29 | — | 0.5 | OEM-A-3 | — | — | — |
| 4 | Injector 3 | — | W30 | — | 0.5 | OEM-A-26 | — | — | — |
| 5 | Injector 4 | — | W31 | — | 0.5 | OEM-A-4 | — | — | — |
| 6 | Injector 5 | — | W32 | — | 0.5 | OEM-A-25 | — | — | — |
| 7 | Injector 6 | — | W33 | — | 0.5 | OEM-A-2 | — | — | — |
| 8 | Injector 7 | — | — | — | — | — | — | — | — |
| 9 | Injector 8 | — | — | — | — | — | — | — | — |
| 10 | Ignition 7 | — | — | — | — | — | — | — | — |
| 11 | Power GND | — | W9 | — | 0.85 | SP-GND-1 | — | — | — |
| 12 | +5V source A | — | W22 | — | 0.5 | OEM-A-41 | — | — | — |
| 13 | Digital 2 | — | W50 | — | 0.5 | OEM-A-65 | — | — | — |
| 14 | Digital 4 | — | W52 | — | 0.5 | OEM-A-39 | — | — | — |
| 15 | Digital 8 | — | — | — | — | — | — | — | — |
| 16 | Digital 6 (turbo) | — | — | — | — | — | — | — | — |
| 17 | Power GND | — | W10 | — | 0.85 | SP-GND-1 | — | — | — |
| 18 | Ignition 6 | — | — | — | — | — | — | — | — |
| 19 | Power GND | — | W11 | — | 0.85 | SP-GND-1 | — | — | — |
| 20 | Digital GND | — | W18 | — | 0.5 | SP-0V-1 | — | — | — |
| 21 | Digital 1 (crank) | — | W23 | — | 0.5 | OEM-A-68 | — | — | — |
| 22 | Digital 3 | — | W51 | — | 0.5 | OEM-A-37 | — | — | — |
| 23 | Digital 7 | — | — | — | — | — | — | — | — |
| 24 | Digital 5 (turbo) | — | — | — | — | — | — | — | — |
| 25 | Auxiliary 9 | — | W46 | — | 0.5 | OEM-A-51 | — | — | — |
| 26 | Ignition 5 | — | — | — | — | — | — | — | — |
| 27 | Ignition 4 | — | — | — | — | — | — | — | — |
| 28 | Ignition 3 | — | W27 | — | 0.5 | OEM-A-52 | — | — | — |
| 29 | Ignition 2 | — | W26 | — | 0.5 | OEM-A-60 | — | — | — |
| 30 | Ignition 1 | — | W25 | — | 0.5 | OEM-A-8 | — | — | — |
| 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) | — | W38 | — | 0.5 | OEM-A-49 | — | — | — |
| 2 | Auxiliary 2 (WBO heater) | — | W39 | — | 0.5 | OEM-A-6 | — | — | — |
| 3 | Auxiliary 3 (WBO heater) | — | W40 | — | 0.5 | OEM-A-9 | — | — | — |
| 4 | Auxiliary 4 (WBO heater) | — | W41 | — | 0.5 | OEM-A-27 | — | — | — |
| 5 | Auxiliary 5 | — | W42 | — | 0.5 | OEM-A-31 | — | — | — |
| 6 | Auxiliary 6 | — | W43 | — | 0.5 | OEM-A-5 | — | — | — |
| 7 | Auxiliary 7 | — | W44 | — | 0.5 | OEM-A-53 | — | — | — |
| 8 | +12V supply | — | W3 | — | 0.85 | SP-14V-1 | — | — | — |
| 9 | Digital GND (flash drive) | — | W19 | — | 0.5 | SP-0V-1 | — | — | — |
| 10 | USB D- (flash drive) | — | — | — | — | — | — | — | — |
| 11 | USB D+ (flash drive) | — | — | — | — | — | — | — | — |
| 12 | +5V source A (flash drive) | — | — | — | — | — | — | — | — |
| 13 | Auxiliary 8 | — | W45 | — | 0.5 | OEM-A-22 | — | — | — |
| 14 | +12V supply | — | W2 | — | 0.85 | SP-14V-1 | — | — | — |
| 15 | +12V switched | — | W34 | — | 0.5 | OEM-A-38 | — | — | — |
| 16 | Knock sensor 1 | — | W24 | — | 0.5 | OEM-A-34 | — | — | — |
| 17 | Knock sensor 2 | — | — | — | — | — | — | — | — |
| 18 | WBO 2 VGND (LSU 4.9) | — | — | — | — | — | — | — | — |
| 19 | Power GND | — | W12 | — | 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 | — | W47 | — | 0.5 | OEM-A-20 | — | — | — |
| 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 | — | W36 | — | 0.5 | OEM-A-40 | — | — | — |
| 19 | Analog 4 | — | W49 | — | 0.5 | OEM-A-36 | — | — | — |
| 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 | — | W20 | — | 0.5 | SP-0V-1 | — | — | — |
| 30 | Power GND | — | W13 | — | 0.85 | SP-GND-1 | — | — | — |
| 31 | Precision analog 1 | — | W35 | — | 0.5 | OEM-A-17 | — | — | — |
| 32 | Precision analog 2 | — | W37 | — | 0.5 | OEM-A-14 | — | — | — |
| 33 | Precision analog 3 | — | W48 | — | 0.5 | OEM-A-15 | — | — | — |
| 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 | — | W21 | — | 0.5 | SP-0V-1 | — | — | — |
| 18 | Power GND | — | W14 | — | 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 | Ground (E-1) | — | W4 | — | 0.85 | SP-GND-1 | — | — | — |
| 10 | Ground (OBD1 EGR enable) | — | W5 | — | 0.85 | SP-GND-1 | — | — | — |
| 14 | Coolant temperature (CLT) | — | W37 | — | 0.5 | EMUPRO16-C-32 | — | — | — |
| 15 | EGR temperature sensor | — | W48 | — | 0.5 | EMUPRO16-C-33 | — | — | — |
| 16 | MAF ground | — | W15 | — | 0.5 | SP-0V-1 | — | — | — |
| 17 | MAF signal | — | W35 | — | 0.5 | EMUPRO16-C-31 | — | — | — |
| 2 | Injector 6 (cyl 6) | — | W33 | — | 0.5 | EMUPRO16-A-7 | — | — | — |
| 20 | O2 sensor 1 (primary) | — | W47 | — | 0.5 | EMUPRO16-C-11 | — | — | — |
| 21 | Diagnostic L-line | — | — | — | — | — | — | — | — |
| 22 | Tachometer output | — | W45 | — | 0.5 | EMUPRO16-B-13 | — | — | — |
| 23 | ECU main power (from engine-electronics relay) | — | W1 | — | 0.85 | SP-14V-1 | — | — | — |
| 24 | Injector 1 (cyl 1) | — | W28 | — | 0.5 | EMUPRO16-A-2 | — | — | — |
| 25 | Injector 5 (cyl 5) | — | W32 | — | 0.5 | EMUPRO16-A-6 | — | — | — |
| 26 | Injector 3 (cyl 3) | — | W30 | — | 0.5 | EMUPRO16-A-4 | — | — | — |
| 27 | Idle air control valve | — | W41 | — | 0.5 | EMUPRO16-B-4 | — | — | — |
| 3 | Injector 2 (cyl 2) | — | W29 | — | 0.5 | EMUPRO16-A-3 | — | — | — |
| 31 | EVAP canister purge valve | — | W42 | — | 0.5 | EMUPRO16-B-5 | — | — | — |
| 33 | Sensor ground bus | — | W16 | — | 0.5 | SP-0V-1 | — | — | — |
| 34 | Knock sensor 1 | — | W24 | — | 0.5 | EMUPRO16-B-16 | — | — | — |
| 36 | Intake air temperature (IAT) | — | W49 | — | 0.5 | EMUPRO16-C-19 | — | — | — |
| 37 | A/C compressor switch | — | W51 | — | 0.5 | EMUPRO16-A-22 | — | — | — |
| 38 | Ignition switch (run/start) | — | W34 | — | 0.5 | EMUPRO16-B-15 | — | — | — |
| 39 | A/C switch (cabin) | — | W52 | — | 0.5 | EMUPRO16-A-14 | — | — | — |
| 4 | Injector 4 (cyl 4) | — | W31 | — | 0.5 | EMUPRO16-A-5 | — | — | — |
| 40 | Throttle position sensor 1 | — | W36 | — | 0.5 | EMUPRO16-C-18 | — | — | — |
| 41 | TPS power (+5V) | — | W22 | — | 0.5 | EMUPRO16-A-12 | — | — | — |
| 43 | Diagnostic K-line | — | — | — | — | — | — | — | — |
| 44 | Camshaft position sensor (G40) | — | — | — | — | — | — | — | — |
| 49 | Secondary air injection relay control | — | W38 | — | 0.5 | EMUPRO16-B-1 | — | — | — |
| 5 | Check engine light (MIL) | — | W43 | — | 0.5 | EMUPRO16-B-6 | — | — | — |
| 51 | MFA fuel-consumption signal | — | W46 | — | 0.5 | EMUPRO16-A-25 | — | — | — |
| 52 | Ignition coil 4 (coil pack pin 4) | — | W27 | — | 0.5 | EMUPRO16-A-28 | — | — | — |
| 53 | Idle air control valve (2nd) | — | W44 | — | 0.5 | EMUPRO16-B-7 | — | — | — |
| 54 | Battery constant (+12V) | — | — | — | — | — | — | — | — |
| 55 | Ground (E-3) | — | W6 | — | 0.85 | SP-GND-1 | — | — | — |
| 56 | Ground (E-4) | — | W7 | — | 0.85 | SP-GND-1 | — | — | — |
| 59 | Mass airflow sensor (5th terminal) | — | — | — | — | — | — | — | — |
| 6 | Fuel pump relay control | — | W39 | — | 0.5 | EMUPRO16-B-2 | — | — | — |
| 60 | Ignition coil 3 (coil pack pin 3) | — | W26 | — | 0.5 | EMUPRO16-A-29 | — | — | — |
| 65 | Vehicle speed sensor (VSS) | — | W50 | — | 0.5 | EMUPRO16-A-13 | — | — | — |
| 67 | Crank sensor return (VR-) | — | W17 | — | 0.5 | SP-0V-1 | — | — | — |
| 68 | Crank position sensor (G28, VR+) | — | W23 | — | 0.5 | EMUPRO16-A-21 | — | — | — |
| 7 | Ground (E-2) | — | W8 | — | 0.85 | SP-GND-1 | — | — | — |
| 8 | Ignition coil 2 (coil pack pin 2) | — | W25 | — | 0.5 | EMUPRO16-A-30 | — | — | — |
| 9 | Engine electronics relay control | — | W40 | — | 0.5 | EMUPRO16-B-3 | — | — | — |
SP-0V
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W15 | — | 0.5 | OEM-A-16 | — | — | — |
| 1 | — | — | W16 | — | 0.5 | OEM-A-33 | — | — | — |
| 1 | — | — | W17 | — | 0.5 | OEM-A-67 | — | — | — |
| 1 | — | — | W18 | — | 0.5 | EMUPRO16-A-20 | — | — | — |
| 1 | — | — | W19 | — | 0.5 | EMUPRO16-B-9 | — | — | — |
| 1 | — | — | W20 | — | 0.5 | EMUPRO16-C-29 | — | — | — |
| 1 | — | — | W21 | — | 0.5 | EMUPRO16-D-17 | — | — | — |
SP-14V
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W1 | — | 0.85 | OEM-A-23 | — | — | — |
| 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-1 | — | — | — |
| 1 | — | — | W5 | — | 0.85 | OEM-A-10 | — | — | — |
| 1 | — | — | W6 | — | 0.85 | OEM-A-55 | — | — | — |
| 1 | — | — | W7 | — | 0.85 | OEM-A-56 | — | — | — |
| 1 | — | — | W8 | — | 0.85 | OEM-A-7 | — | — | — |
| 1 | — | — | W9 | — | 0.85 | EMUPRO16-A-11 | — | — | — |
| 1 | — | — | W10 | — | 0.85 | EMUPRO16-A-17 | — | — | — |
| 1 | — | — | W11 | — | 0.85 | EMUPRO16-A-19 | — | — | — |
| 1 | — | — | W12 | — | 0.85 | EMUPRO16-B-19 | — | — | — |
| 1 | — | — | W13 | — | 0.85 | EMUPRO16-C-30 | — | — | — |
| 1 | — | — | W14 | — | 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 | Ground (E-1) | 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 | single_source | |
| OEM-A-10 | Ground (OBD1 EGR enable) | 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 | single_source | |
| OEM-A-14 | Coolant temperature (CLT) | temp_in | EMUPRO16-C-32 | Precision analog 2 | analog_in | single_source | |
| OEM-A-15 | EGR temperature sensor | temp_in | EMUPRO16-C-33 | Precision analog 3 | analog_in | single_source | |
| OEM-A-16 | MAF ground | 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 | single_source | |
| OEM-A-17 | MAF signal | analog_in | EMUPRO16-C-31 | Precision analog 1 | analog_in | single_source | |
| OEM-A-2 | Injector 6 (cyl 6) | injector_out | EMUPRO16-A-7 | Injector 6 | injector_out | single_source | |
| OEM-A-20 | O2 sensor 1 (primary) | lambda_nb_in | EMUPRO16-C-11 | Analog 3 | analog_in | single_source | |
| OEM-A-21 | Diagnostic L-line | serial | — | — | — | single_source | |
| OEM-A-22 | Tachometer output | tacho_out | EMUPRO16-B-13 | Auxiliary 8 | low_side_out | single_source | |
| OEM-A-23 | ECU main power (from engine-electronics relay) | power_in | EMUPRO16-B-14 + EMUPRO16-B-8 | +12V supply + +12V supply | power_in | single_source | |
| OEM-A-24 | Injector 1 (cyl 1) | injector_out | EMUPRO16-A-2 | Injector 1 | injector_out | single_source | |
| OEM-A-25 | Injector 5 (cyl 5) | injector_out | EMUPRO16-A-6 | Injector 5 | injector_out | single_source | |
| OEM-A-26 | Injector 3 (cyl 3) | injector_out | EMUPRO16-A-4 | Injector 3 | injector_out | single_source | |
| OEM-A-27 | Idle air control valve | low_side_out | EMUPRO16-B-4 | Auxiliary 4 (WBO heater) | low_side_out | single_source | |
| OEM-A-3 | Injector 2 (cyl 2) | injector_out | EMUPRO16-A-3 | Injector 2 | injector_out | single_source | |
| OEM-A-31 | EVAP canister purge valve | low_side_out | EMUPRO16-B-5 | Auxiliary 5 | low_side_out | single_source | |
| OEM-A-33 | Sensor ground bus | 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 | single_source | |
| OEM-A-34 | Knock sensor 1 | knock_in | EMUPRO16-B-16 | Knock sensor 1 | knock_in | single_source | |
| OEM-A-36 | Intake air temperature (IAT) | temp_in | EMUPRO16-C-19 | Analog 4 | analog_in | single_source | |
| OEM-A-37 | A/C compressor switch | digital_in | EMUPRO16-A-22 | Digital 3 | digital_in | single_source | |
| OEM-A-38 | Ignition switch (run/start) | digital_in | EMUPRO16-B-15 | +12V switched | digital_in | single_source | |
| OEM-A-39 | A/C switch (cabin) | digital_in | EMUPRO16-A-14 | Digital 4 | digital_in | single_source | |
| OEM-A-4 | Injector 4 (cyl 4) | injector_out | EMUPRO16-A-5 | Injector 4 | injector_out | single_source | |
| OEM-A-40 | Throttle position sensor 1 | analog_in | EMUPRO16-C-18 | Analog 2 | analog_in | single_source | |
| OEM-A-41 | TPS power (+5V) | vref | EMUPRO16-A-12 | +5V source A | vref | single_source | |
| OEM-A-43 | Diagnostic K-line | serial | — | — | — | single_source | |
| OEM-A-44 | Camshaft position sensor (G40) | trigger_in | — | — | — | single_source | |
| OEM-A-49 | Secondary air injection relay control | low_side_out | EMUPRO16-B-1 | Auxiliary 1 (WBO heater) | low_side_out | single_source | |
| OEM-A-5 | Check engine light (MIL) | low_side_out | EMUPRO16-B-6 | Auxiliary 6 | low_side_out | single_source | |
| OEM-A-51 | MFA fuel-consumption signal | tacho_out | EMUPRO16-A-25 | Auxiliary 9 | low_side_out | single_source | |
| OEM-A-52 | Ignition coil 4 (coil pack pin 4) | ignition_out | EMUPRO16-A-28 | Ignition 3 | ignition_out | single_source | |
| OEM-A-53 | Idle air control valve (2nd) | low_side_out | EMUPRO16-B-7 | Auxiliary 7 | low_side_out | single_source | |
| OEM-A-54 | Battery constant (+12V) | power_in | — | — | — | single_source | |
| OEM-A-55 | Ground (E-3) | 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 | single_source | |
| OEM-A-56 | Ground (E-4) | 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 | single_source | |
| OEM-A-59 | Mass airflow sensor (5th terminal) | sensor_out | — | — | — | single_source | |
| OEM-A-6 | Fuel pump relay control | low_side_out | EMUPRO16-B-2 | Auxiliary 2 (WBO heater) | low_side_out | single_source | |
| OEM-A-60 | Ignition coil 3 (coil pack pin 3) | ignition_out | EMUPRO16-A-29 | Ignition 2 | ignition_out | single_source | |
| OEM-A-65 | Vehicle speed sensor (VSS) | digital_in | EMUPRO16-A-13 | Digital 2 | digital_in | single_source | |
| OEM-A-67 | Crank sensor return (VR-) | 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 | single_source | |
| OEM-A-68 | Crank position sensor (G28, VR+) | trigger_in | EMUPRO16-A-21 | Digital 1 (crank) | trigger_in | single_source | |
| OEM-A-7 | Ground (E-2) | 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 | single_source | |
| OEM-A-8 | Ignition coil 2 (coil pack pin 2) | ignition_out | EMUPRO16-A-30 | Ignition 1 | ignition_out | single_source | |
| OEM-A-9 | Engine electronics relay control | low_side_out | EMUPRO16-B-3 | Auxiliary 3 (WBO heater) | low_side_out | single_source |
Cut list
| Wire | From | To | Gauge (mm²) | Colour | Length | Signal | Ident |
|---|---|---|---|---|---|---|---|
| W1 | OEM-A-23 | SP-14V-1 | 0.85 | no route | ECU main power (from engine-electronics 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-1 | SP-GND-1 | 0.85 | no route | Ground (E-1) | — | |
| W5 | OEM-A-10 | SP-GND-1 | 0.85 | no route | Ground (OBD1 EGR enable) | — | |
| W6 | OEM-A-55 | SP-GND-1 | 0.85 | no route | Ground (E-3) | — | |
| W7 | OEM-A-56 | SP-GND-1 | 0.85 | no route | Ground (E-4) | — | |
| W8 | OEM-A-7 | SP-GND-1 | 0.85 | no route | Ground (E-2) | — | |
| W9 | SP-GND-1 | EMUPRO16-A-11 | 0.85 | no route | Power GND | — | |
| W10 | SP-GND-1 | EMUPRO16-A-17 | 0.85 | no route | Power GND | — | |
| W11 | SP-GND-1 | EMUPRO16-A-19 | 0.85 | no route | Power GND | — | |
| W12 | SP-GND-1 | EMUPRO16-B-19 | 0.85 | no route | Power GND | — | |
| W13 | SP-GND-1 | EMUPRO16-C-30 | 0.85 | no route | Power GND | — | |
| W14 | SP-GND-1 | EMUPRO16-D-18 | 0.85 | no route | Power GND | — | |
| W15 | OEM-A-16 | SP-0V-1 | 0.5 | no route | MAF ground | — | |
| W16 | OEM-A-33 | SP-0V-1 | 0.5 | no route | Sensor ground bus | — | |
| W17 | OEM-A-67 | SP-0V-1 | 0.5 | no route | Crank sensor return (VR-) | — | |
| W18 | SP-0V-1 | EMUPRO16-A-20 | 0.5 | no route | Digital GND | — | |
| W19 | SP-0V-1 | EMUPRO16-B-9 | 0.5 | no route | Digital GND (flash drive) | — | |
| W20 | SP-0V-1 | EMUPRO16-C-29 | 0.5 | no route | Analog GND | — | |
| W21 | SP-0V-1 | EMUPRO16-D-17 | 0.5 | no route | Analog GND | — | |
| W22 | OEM-A-41 | EMUPRO16-A-12 | 0.5 | no route | TPS power (+5V) | — | |
| W23 | OEM-A-68 | EMUPRO16-A-21 | 0.5 | no route | Crank position sensor (G28, VR+) | — | |
| W24 | OEM-A-34 | EMUPRO16-B-16 | 0.5 | no route | Knock sensor 1 | — | |
| W25 | OEM-A-8 | EMUPRO16-A-30 | 0.5 | no route | Ignition coil 2 (coil pack pin 2) | — | |
| W26 | OEM-A-60 | EMUPRO16-A-29 | 0.5 | no route | Ignition coil 3 (coil pack pin 3) | — | |
| W27 | OEM-A-52 | EMUPRO16-A-28 | 0.5 | no route | Ignition coil 4 (coil pack pin 4) | — | |
| W28 | OEM-A-24 | EMUPRO16-A-2 | 0.5 | no route | Injector 1 (cyl 1) | — | |
| W29 | OEM-A-3 | EMUPRO16-A-3 | 0.5 | no route | Injector 2 (cyl 2) | — | |
| W30 | OEM-A-26 | EMUPRO16-A-4 | 0.5 | no route | Injector 3 (cyl 3) | — | |
| W31 | OEM-A-4 | EMUPRO16-A-5 | 0.5 | no route | Injector 4 (cyl 4) | — | |
| W32 | OEM-A-25 | EMUPRO16-A-6 | 0.5 | no route | Injector 5 (cyl 5) | — | |
| W33 | OEM-A-2 | EMUPRO16-A-7 | 0.5 | no route | Injector 6 (cyl 6) | — | |
| W34 | OEM-A-38 | EMUPRO16-B-15 | 0.5 | no route | Ignition switch (run/start) | — | |
| W35 | OEM-A-17 | EMUPRO16-C-31 | 0.5 | no route | MAF signal | — | |
| W36 | OEM-A-40 | EMUPRO16-C-18 | 0.5 | no route | Throttle position sensor 1 | — | |
| W37 | OEM-A-14 | EMUPRO16-C-32 | 0.5 | no route | Coolant temperature (CLT) | — | |
| W38 | OEM-A-49 | EMUPRO16-B-1 | 0.5 | no route | Secondary air injection relay control | — | |
| W39 | OEM-A-6 | EMUPRO16-B-2 | 0.5 | no route | Fuel pump relay control | — | |
| W40 | OEM-A-9 | EMUPRO16-B-3 | 0.5 | no route | Engine electronics relay control | — | |
| W41 | OEM-A-27 | EMUPRO16-B-4 | 0.5 | no route | Idle air control valve | — | |
| W42 | OEM-A-31 | EMUPRO16-B-5 | 0.5 | no route | EVAP canister purge valve | — | |
| W43 | OEM-A-5 | EMUPRO16-B-6 | 0.5 | no route | Check engine light (MIL) | — | |
| W44 | OEM-A-53 | EMUPRO16-B-7 | 0.5 | no route | Idle air control valve (2nd) | — | |
| W45 | OEM-A-22 | EMUPRO16-B-13 | 0.5 | no route | Tachometer output | — | |
| W46 | OEM-A-51 | EMUPRO16-A-25 | 0.5 | no route | MFA fuel-consumption signal | — | |
| W47 | OEM-A-20 | EMUPRO16-C-11 | 0.5 | no route | O2 sensor 1 (primary) | — | |
| W48 | OEM-A-15 | EMUPRO16-C-33 | 0.5 | no route | EGR temperature sensor | — | |
| W49 | OEM-A-36 | EMUPRO16-C-19 | 0.5 | no route | Intake air temperature (IAT) | — | |
| W50 | OEM-A-65 | EMUPRO16-A-13 | 0.5 | no route | Vehicle speed sensor (VSS) | — | |
| W51 | OEM-A-37 | EMUPRO16-A-22 | 0.5 | no route | A/C compressor switch | — | |
| W52 | OEM-A-39 | EMUPRO16-A-14 | 0.5 | no route | A/C switch (cabin) | — |
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) | 43.000 | ea |
ECU setup sheet
| Role | Engine ref | Engine signal | Sensor | ECU point | ECU function | ECU class | Setup flag |
|---|---|---|---|---|---|---|---|
| No configured channels. | |||||||
Findings
Open (7)
| Severity | Code | Subject | Message |
|---|---|---|---|
| error | REQUIRED_UNMAPPED | OEM-A-44 | Required OEM function "Camshaft position sensor (G40)" (trigger_in) is not connected to the new ECU. |
| info | NET_FAMILY | OEM-A-14 ↔ EMUPRO16-C-32 | OEM-A-14 "Coolant temperature (CLT)" [temp_in] is wired to EMUPRO16-C-32 "Precision 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-15 ↔ EMUPRO16-C-33 | OEM-A-15 "EGR temperature sensor" [temp_in] is wired to EMUPRO16-C-33 "Precision analog 3" [analog_in]. Thermistor on a plain analog input needs a pull-up; check the channel can enable one. |
| info | NET_FAMILY | OEM-A-22 ↔ EMUPRO16-B-13 | OEM-A-22 "Tachometer output" [tacho_out] is wired to EMUPRO16-B-13 "Auxiliary 8" [low_side_out]. Tacho as a low-side output: check the tach needs a pull-up. |
| info | NET_FAMILY | OEM-A-36 ↔ EMUPRO16-C-19 | OEM-A-36 "Intake air temperature (IAT)" [temp_in] is wired to EMUPRO16-C-19 "Analog 4" [analog_in]. Thermistor on a plain analog input needs a pull-up; check the channel can enable one. |
| info | NET_FAMILY | OEM-A-51 ↔ EMUPRO16-A-25 | OEM-A-51 "MFA fuel-consumption signal" [tacho_out] is wired to EMUPRO16-A-25 "Auxiliary 9" [low_side_out]. Tacho as a low-side output: check the tach needs a pull-up. |
| info | UNMAPPED | OEM | 3 optional OEM pins are not mapped: OEM-A-21 Diagnostic L-line; OEM-A-43 Diagnostic K-line; OEM-A-59 Mass airflow sensor (5th terminal) |
Accepted (1)
| Code | Subject | Reason | By |
|---|---|---|---|
| REQUIRED_UNMAPPED | OEM-A-54 | 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: - OEM-A 44: Camshaft position sensor (G40): no free cam_hall/cam_vr/frequency_in input on ECUMASTER EMU PRO 16 Not wired: - OEM-A 54: Battery constant (+12V): ECUMASTER EMU PRO 16 has no battery-constant input; not needed - OEM-A 21: Diagnostic L-line: no free k_line on ECUMASTER EMU PRO 16 - OEM-A 43: Diagnostic K-line: no free k_line on ECUMASTER EMU PRO 16 - OEM-A 59: Mass airflow sensor (5th terminal): no rule for class sensor_signal; wire by hand
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: VR6/ABA Motronic M2.9 (OBD1) engine control unit pinout | http://www.a2resource.com/electrical/management/motronicvr6aba.html | — | — | — |