VW Golf Mk4 1.8T 20v (AUM, Bosch ME7.5) DBW → ECUMASTER EMU PRO 16 (auto)
VW Golf Mk4 1.8T 20v (AUM, Bosch ME7.5) DBW — 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 | 71 wires · 9 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-T121-121 | SP-14V-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W2 | OEM-T121-21 | SP-14V-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W3 | SP-14V-1 | EMUPRO16-B-14 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W4 | SP-14V-1 | EMUPRO16-B-8 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W5 | OEM-T121-1 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W6 | OEM-T121-2 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W7 | SP-GND-1 | EMUPRO16-A-11 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W8 | SP-GND-1 | EMUPRO16-A-17 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W9 | SP-GND-1 | EMUPRO16-A-19 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W10 | SP-GND-1 | EMUPRO16-B-19 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W11 | SP-GND-1 | EMUPRO16-C-30 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W12 | SP-GND-1 | EMUPRO16-D-18 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W13 | OEM-T121-108 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W14 | OEM-T121-29 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W15 | OEM-T121-34 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W16 | OEM-T121-36 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W17 | OEM-T121-90 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W18 | OEM-T121-91 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W19 | SP-0V-1 | EMUPRO16-A-20 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W20 | SP-0V-1 | EMUPRO16-B-9 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W21 | SP-0V-1 | EMUPRO16-C-29 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W22 | SP-0V-1 | EMUPRO16-D-17 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W23 | OEM-T121-72 | EMUPRO16-A-12 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W24 | OEM-T121-73 | EMUPRO16-B-12 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W25 | OEM-T121-83 | EMUPRO16-C-27 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W26 | OEM-T121-98 | SP-5V1-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W27 | OEM-T121-99 | SP-5V1-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W28 | SP-5V1-1 | EMUPRO16-C-28 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W29 | OEM-T121-82 | EMUPRO16-A-21 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W30 | OEM-T121-106 | EMUPRO16-B-16 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W31 | OEM-T121-107 | EMUPRO16-B-17 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W32 | OEM-T121-102 | EMUPRO16-A-30 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W33 | OEM-T121-95 | EMUPRO16-A-29 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W34 | OEM-T121-103 | EMUPRO16-A-28 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W35 | OEM-T121-94 | EMUPRO16-A-27 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W36 | OEM-T121-96 | EMUPRO16-A-2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W37 | OEM-T121-89 | EMUPRO16-A-3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W38 | OEM-T121-97 | EMUPRO16-A-4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W39 | OEM-T121-88 | EMUPRO16-A-5 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W40 | OEM-T121-118 | EMUPRO16-C-6 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W41 | OEM-T121-117 | EMUPRO16-C-25 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W42 | OEM-T121-3 | EMUPRO16-B-15 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W43 | OEM-T121-53 | EMUPRO16-C-31 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W44 | OEM-T121-101 | EMUPRO16-C-10 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W45 | OEM-T121-33 | EMUPRO16-C-18 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W46 | OEM-T121-84 | EMUPRO16-C-32 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W47 | OEM-T121-35 | EMUPRO16-C-11 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W48 | OEM-T121-92 | EMUPRO16-C-33 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W49 | OEM-T121-93 | EMUPRO16-C-19 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W50 | OEM-T121-65 | EMUPRO16-B-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W51 | OEM-T121-66 | EMUPRO16-B-2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W52 | OEM-T121-5 | EMUPRO16-B-3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W53 | OEM-T121-63 | EMUPRO16-B-4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W54 | OEM-T121-104 | EMUPRO16-B-5 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W55 | OEM-T121-105 | EMUPRO16-B-6 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W56 | OEM-T121-115 | EMUPRO16-B-7 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W57 | OEM-T121-47 | EMUPRO16-B-13 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W58 | OEM-T121-48 | EMUPRO16-A-25 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W59 | OEM-T121-64 | EMUPRO16-C-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W60 | OEM-T121-9 | EMUPRO16-C-2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W61 | OEM-T121-37 | EMUPRO16-C-3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W62 | OEM-T121-51 | EMUPRO16-B-20 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W63 | OEM-T121-52 | EMUPRO16-B-24 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W64 | OEM-T121-70 | EMUPRO16-B-21 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W65 | OEM-T121-71 | EMUPRO16-B-25 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W66 | OEM-T121-68 | EMUPRO16-C-34 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W67 | OEM-T121-69 | EMUPRO16-C-12 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W68 | OEM-T121-85 | EMUPRO16-D-21 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W69 | OEM-T121-54 | EMUPRO16-A-13 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W70 | OEM-T121-60 | EMUPRO16-A-31 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W71 | OEM-T121-58 | EMUPRO16-A-32 | 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-12 | open (OL) | power ground must not touch 5 V sensor reference | |
| 3 | EMUPRO16-A-11 | EMUPRO16-B-14 | open (OL) | power ground must not touch +12 V supply | |
| 4 | EMUPRO16-A-11 | EMUPRO16-C-27 | open (OL) | power ground must not touch 5 V sensor reference | |
| 5 | EMUPRO16-A-11 | EMUPRO16-C-28 | open (OL) | power ground must not touch 5 V sensor reference | |
| 6 | EMUPRO16-A-20 | EMUPRO16-A-12 | open (OL) | sensor ground must not touch 5 V sensor reference | |
| 7 | EMUPRO16-A-20 | EMUPRO16-B-12 | open (OL) | sensor ground must not touch 5 V sensor reference | |
| 8 | EMUPRO16-A-20 | EMUPRO16-B-14 | open (OL) | sensor ground must not touch +12 V supply | |
| 9 | EMUPRO16-A-20 | EMUPRO16-C-27 | open (OL) | sensor ground must not touch 5 V sensor reference | |
| 10 | EMUPRO16-A-20 | EMUPRO16-C-28 | open (OL) | sensor ground must not touch 5 V sensor reference | |
| 11 | EMUPRO16-B-14 | EMUPRO16-A-12 | open (OL) | +12 V supply must not touch 5 V sensor reference | |
| 12 | EMUPRO16-B-14 | EMUPRO16-B-12 | open (OL) | +12 V supply must not touch 5 V sensor reference | |
| 13 | EMUPRO16-B-14 | EMUPRO16-C-27 | open (OL) | +12 V supply must not touch 5 V sensor reference | |
| 14 | EMUPRO16-B-14 | EMUPRO16-C-28 | 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 | — | W36 | — | 0.5 | OEM-T121-96 | — | — | — |
| 3 | Injector 2 | — | W37 | — | 0.5 | OEM-T121-89 | — | — | — |
| 4 | Injector 3 | — | W38 | — | 0.5 | OEM-T121-97 | — | — | — |
| 5 | Injector 4 | — | W39 | — | 0.5 | OEM-T121-88 | — | — | — |
| 6 | Injector 5 | — | — | — | — | — | — | — | — |
| 7 | Injector 6 | — | — | — | — | — | — | — | — |
| 8 | Injector 7 | — | — | — | — | — | — | — | — |
| 9 | Injector 8 | — | — | — | — | — | — | — | — |
| 10 | Ignition 7 | — | — | — | — | — | — | — | — |
| 11 | Power GND | — | W7 | — | 0.85 | SP-GND-1 | — | — | — |
| 12 | +5V source A | — | W23 | — | 0.5 | OEM-T121-72 | — | — | — |
| 13 | Digital 2 | — | W69 | — | 0.5 | OEM-T121-54 | — | — | — |
| 14 | Digital 4 | — | — | — | — | — | — | — | — |
| 15 | Digital 8 | — | — | — | — | — | — | — | — |
| 16 | Digital 6 (turbo) | — | — | — | — | — | — | — | — |
| 17 | Power GND | — | W8 | — | 0.85 | SP-GND-1 | — | — | — |
| 18 | Ignition 6 | — | — | — | — | — | — | — | — |
| 19 | Power GND | — | W9 | — | 0.85 | SP-GND-1 | — | — | — |
| 20 | Digital GND | — | W19 | — | 0.5 | SP-0V-1 | — | — | — |
| 21 | Digital 1 (crank) | — | W29 | — | 0.5 | OEM-T121-82 | — | — | — |
| 22 | Digital 3 | — | — | — | — | — | — | — | — |
| 23 | Digital 7 | — | — | — | — | — | — | — | — |
| 24 | Digital 5 (turbo) | — | — | — | — | — | — | — | — |
| 25 | Auxiliary 9 | — | W58 | — | 0.5 | OEM-T121-48 | — | — | — |
| 26 | Ignition 5 | — | — | — | — | — | — | — | — |
| 27 | Ignition 4 | — | W35 | — | 0.5 | OEM-T121-94 | — | — | — |
| 28 | Ignition 3 | — | W34 | — | 0.5 | OEM-T121-103 | — | — | — |
| 29 | Ignition 2 | — | W33 | — | 0.5 | OEM-T121-95 | — | — | — |
| 30 | Ignition 1 | — | W32 | — | 0.5 | OEM-T121-102 | — | — | — |
| 31 | CAN 1 high (PC comm) | — | W70 | — | 0.5 | OEM-T121-60 | — | — | — |
| 32 | CAN 1 low (PC comm) | — | W71 | — | 0.5 | OEM-T121-58 | — | — | — |
| 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) | — | W50 | — | 0.5 | OEM-T121-65 | — | — | — |
| 2 | Auxiliary 2 (WBO heater) | — | W51 | — | 0.5 | OEM-T121-66 | — | — | — |
| 3 | Auxiliary 3 (WBO heater) | — | W52 | — | 0.5 | OEM-T121-5 | — | — | — |
| 4 | Auxiliary 4 (WBO heater) | — | W53 | — | 0.5 | OEM-T121-63 | — | — | — |
| 5 | Auxiliary 5 | — | W54 | — | 0.5 | OEM-T121-104 | — | — | — |
| 6 | Auxiliary 6 | — | W55 | — | 0.5 | OEM-T121-105 | — | — | — |
| 7 | Auxiliary 7 | — | W56 | — | 0.5 | OEM-T121-115 | — | — | — |
| 8 | +12V supply | — | W4 | — | 0.85 | SP-14V-1 | — | — | — |
| 9 | Digital GND (flash drive) | — | W20 | — | 0.5 | SP-0V-1 | — | — | — |
| 10 | USB D- (flash drive) | — | — | — | — | — | — | — | — |
| 11 | USB D+ (flash drive) | — | — | — | — | — | — | — | — |
| 12 | +5V source A (flash drive) | — | W24 | — | 0.5 | OEM-T121-73 | — | — | — |
| 13 | Auxiliary 8 | — | W57 | — | 0.5 | OEM-T121-47 | — | — | — |
| 14 | +12V supply | — | W3 | — | 0.85 | SP-14V-1 | — | — | — |
| 15 | +12V switched | — | W42 | — | 0.5 | OEM-T121-3 | — | — | — |
| 16 | Knock sensor 1 | — | W30 | — | 0.5 | OEM-T121-106 | — | — | — |
| 17 | Knock sensor 2 | — | W31 | — | 0.5 | OEM-T121-107 | — | — | — |
| 18 | WBO 2 VGND (LSU 4.9) | — | — | — | — | — | — | — | — |
| 19 | Power GND | — | W10 | — | 0.85 | SP-GND-1 | — | — | — |
| 20 | WBO 1 IP (LSU 4.9) | — | W62 | — | 0.5 | OEM-T121-51 | — | — | — |
| 21 | WBO 1 VS (LSU 4.9) | — | W64 | — | 0.5 | OEM-T121-70 | — | — | — |
| 22 | WBO 1 RCAL (LSU 4.9) | — | — | — | — | — | — | — | — |
| 23 | WBO 1 VGND (LSU 4.9) | — | — | — | — | — | — | — | — |
| 24 | WBO 2 IP (LSU 4.9) | — | W63 | — | 0.5 | OEM-T121-52 | — | — | — |
| 25 | WBO 2 VS (LSU 4.9) | — | W65 | — | 0.5 | OEM-T121-71 | — | — | — |
| 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 | — | W59 | — | 0.5 | OEM-T121-64 | — | — | — |
| 2 | Auxiliary 11 | — | W60 | — | 0.5 | OEM-T121-9 | — | — | — |
| 3 | Auxiliary 12 | — | W61 | — | 0.5 | OEM-T121-37 | — | — | — |
| 4 | Analog 7 | — | — | — | — | — | — | — | — |
| 5 | Analog 10 (2k2 pull) | — | — | — | — | — | — | — | — |
| 6 | H-bridge 1A | — | W40 | — | 0.5 | OEM-T121-118 | — | — | — |
| 7 | H-bridge 2B | — | — | — | — | — | — | — | — |
| 8 | H-bridge 3A | — | — | — | — | — | — | — | — |
| 9 | H-bridge 2A | — | — | — | — | — | — | — | — |
| 10 | Analog 1 (MAP) | — | W44 | — | 0.5 | OEM-T121-101 | — | — | — |
| 11 | Analog 3 | — | W47 | — | 0.5 | OEM-T121-35 | — | — | — |
| 12 | Analog 5 | — | W67 | — | 0.5 | OEM-T121-69 | — | — | — |
| 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 | — | W45 | — | 0.5 | OEM-T121-33 | — | — | — |
| 19 | Analog 4 | — | W49 | — | 0.5 | OEM-T121-93 | — | — | — |
| 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 | — | W41 | — | 0.5 | OEM-T121-117 | — | — | — |
| 26 | LIN | — | — | — | — | — | — | — | — |
| 27 | +5V source B | — | W25 | — | 0.5 | OEM-T121-83 | — | — | — |
| 28 | +5V source B | — | W28 | — | 0.5 | SP-5V1-1 | — | — | — |
| 29 | Analog GND | — | W21 | — | 0.5 | SP-0V-1 | — | — | — |
| 30 | Power GND | — | W11 | — | 0.85 | SP-GND-1 | — | — | — |
| 31 | Precision analog 1 | — | W43 | — | 0.5 | OEM-T121-53 | — | — | — |
| 32 | Precision analog 2 | — | W46 | — | 0.5 | OEM-T121-84 | — | — | — |
| 33 | Precision analog 3 | — | W48 | — | 0.5 | OEM-T121-92 | — | — | — |
| 34 | Precision analog 4 | — | W66 | — | 0.5 | OEM-T121-68 | — | — | — |
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 | — | W22 | — | 0.5 | SP-0V-1 | — | — | — |
| 18 | Power GND | — | W12 | — | 0.85 | SP-GND-1 | — | — | — |
| 19 | Auxiliary 14 | — | — | — | — | — | — | — | — |
| 20 | H-bridge 4B | — | — | — | — | — | — | — | — |
| 21 | Precision analog 5 | — | W68 | — | 0.5 | OEM-T121-85 | — | — | — |
| 22 | Precision analog 7 | — | — | — | — | — | — | — | — |
| 23 | Ignition 9 | — | — | — | — | — | — | — | — |
| 24 | Ignition 10 | — | — | — | — | — | — | — | — |
| 25 | Auxiliary 16 | — | — | — | — | — | — | — | — |
| 26 | Auxiliary 15 | — | — | — | — | — | — | — | — |
OEM-T121
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | ECU ground | — | W5 | — | 0.85 | SP-GND-1 | — | — | — |
| 101 | Boost pressure sensor (G31) | — | W44 | — | 0.5 | EMUPRO16-C-10 | — | — | — |
| 102 | Ignition coil 1 (N127) | — | W32 | — | 0.5 | EMUPRO16-A-30 | — | — | — |
| 103 | Ignition coil 3 (N158) | — | W34 | — | 0.5 | EMUPRO16-A-28 | — | — | — |
| 104 | Boost control solenoid (N75) | — | W54 | — | 0.5 | EMUPRO16-B-5 | — | — | — |
| 105 | Diverter valve (N249) | — | W55 | — | 0.5 | EMUPRO16-B-6 | — | — | — |
| 106 | Knock sensor 1 (G61) | — | W30 | — | 0.5 | EMUPRO16-B-16 | — | — | — |
| 107 | Knock sensor 2 (G66) | — | W31 | — | 0.5 | EMUPRO16-B-17 | — | — | — |
| 108 | Sensor ground | — | W13 | — | 0.5 | SP-0V-1 | — | — | — |
| 115 | VVT camshaft adjustment valve (N205) | — | W56 | — | 0.5 | EMUPRO16-B-7 | — | — | — |
| 117 | Throttle motor G186 (+) | — | W41 | — | 0.5 | EMUPRO16-C-25 | — | — | — |
| 118 | Throttle motor G186 (−) | — | W40 | — | 0.5 | EMUPRO16-C-6 | — | — | — |
| 121 | ECM + coil power (J271 relay feed) | — | W1 | — | 0.85 | SP-14V-1 | — | — | — |
| 2 | ECU ground | — | W6 | — | 0.85 | SP-GND-1 | — | — | — |
| 21 | ECM power (J271 relay feed) | — | W2 | — | 0.85 | SP-14V-1 | — | — | — |
| 27 | MAF sensor supply (G70) | — | — | — | — | — | — | — | — |
| 29 | MAF sensor ground (G70) | — | W14 | — | 0.5 | SP-0V-1 | — | — | — |
| 3 | Ignition switch +12V (term 15) | — | W42 | — | 0.5 | EMUPRO16-B-15 | — | — | — |
| 33 | Accelerator pedal position 1 (G79) | — | W45 | — | 0.5 | EMUPRO16-C-18 | — | — | — |
| 34 | Accelerator pedal position 1 ground (G79) | — | W15 | — | 0.5 | SP-0V-1 | — | — | — |
| 35 | Accelerator pedal position 2 (G185) | — | W47 | — | 0.5 | EMUPRO16-C-11 | — | — | — |
| 36 | Accelerator pedal position 2 ground (G185) | — | W16 | — | 0.5 | SP-0V-1 | — | — | — |
| 37 | Engine speed signal (tacho to cluster) | — | W61 | — | 0.5 | EMUPRO16-C-3 | — | — | — |
| 43 | K-line diagnostics (OBD pin 7) | — | — | — | — | — | — | — | — |
| 47 | Check engine light (MIL) | — | W57 | — | 0.5 | EMUPRO16-B-13 | — | — | — |
| 48 | EPC warning light | — | W58 | — | 0.5 | EMUPRO16-A-25 | — | — | — |
| 5 | Wideband lambda heater (Z19) | — | W52 | — | 0.5 | EMUPRO16-B-3 | — | — | — |
| 51 | Wideband lambda pump (G39) | — | W62 | — | 0.5 | EMUPRO16-B-20 | — | — | — |
| 52 | Wideband lambda pump (G39) | — | W63 | — | 0.5 | EMUPRO16-B-24 | — | — | — |
| 53 | MAF sensor signal (G70) | — | W43 | — | 0.5 | EMUPRO16-C-31 | — | — | — |
| 54 | Road speed signal (VSS) | — | W69 | — | 0.5 | EMUPRO16-A-13 | — | — | — |
| 58 | CAN bus low | — | W71 | — | 0.5 | EMUPRO16-A-32 | — | — | — |
| 60 | CAN bus high | — | W70 | — | 0.5 | EMUPRO16-A-31 | — | — | — |
| 62 | Battery constant +12V (term 30) | — | — | — | — | — | — | — | — |
| 63 | Post-cat lambda heater (Z29) | — | W53 | — | 0.5 | EMUPRO16-B-4 | — | — | — |
| 64 | EVAP canister valve (N80) | — | W59 | — | 0.5 | EMUPRO16-C-1 | — | — | — |
| 65 | Fuel pump relay control | — | W50 | — | 0.5 | EMUPRO16-B-1 | — | — | — |
| 66 | Secondary-air pump relay (J299) | — | W51 | — | 0.5 | EMUPRO16-B-2 | — | — | — |
| 68 | Post-cat lambda signal (G130) | — | W66 | — | 0.5 | EMUPRO16-C-34 | — | — | — |
| 69 | Post-cat lambda signal (G130) | — | W67 | — | 0.5 | EMUPRO16-C-12 | — | — | — |
| 70 | Wideband lambda Nernst signal (G39) | — | W64 | — | 0.5 | EMUPRO16-B-21 | — | — | — |
| 71 | Wideband lambda Nernst signal (G39) | — | W65 | — | 0.5 | EMUPRO16-B-25 | — | — | — |
| 72 | Accelerator pedal position 1 5V supply (G79) | — | W23 | — | 0.5 | EMUPRO16-A-12 | — | — | — |
| 73 | Accelerator pedal position 2 5V supply (G185) | — | W24 | — | 0.5 | EMUPRO16-B-12 | — | — | — |
| 82 | Crank position sensor (G28) | — | W29 | — | 0.5 | EMUPRO16-A-21 | — | — | — |
| 83 | Throttle position sensor 5V supply (G187/G188) | — | W25 | — | 0.5 | EMUPRO16-C-27 | — | — | — |
| 84 | Throttle position sensor 1 (G187) | — | W46 | — | 0.5 | EMUPRO16-C-32 | — | — | — |
| 85 | Intake air temperature (G42) | — | W68 | — | 0.5 | EMUPRO16-D-21 | — | — | — |
| 86 | Camshaft position sensor (G40) | — | — | — | — | — | — | — | — |
| 88 | Injector 4 (N33) | — | W39 | — | 0.5 | EMUPRO16-A-5 | — | — | — |
| 89 | Injector 2 (N31) | — | W37 | — | 0.5 | EMUPRO16-A-3 | — | — | — |
| 9 | Secondary-air injection valve (N112) | — | W60 | — | 0.5 | EMUPRO16-C-2 | — | — | — |
| 90 | Crank position sensor ground (G28) | — | W17 | — | 0.5 | SP-0V-1 | — | — | — |
| 91 | Throttle position sensor ground (G187/G188) | — | W18 | — | 0.5 | SP-0V-1 | — | — | — |
| 92 | Throttle position sensor 2 (G188) | — | W48 | — | 0.5 | EMUPRO16-C-33 | — | — | — |
| 93 | Engine coolant temperature (G62) | — | W49 | — | 0.5 | EMUPRO16-C-19 | — | — | — |
| 94 | Ignition coil 4 (N163) | — | W35 | — | 0.5 | EMUPRO16-A-27 | — | — | — |
| 95 | Ignition coil 2 (N128) | — | W33 | — | 0.5 | EMUPRO16-A-29 | — | — | — |
| 96 | Injector 1 (N30) | — | W36 | — | 0.5 | EMUPRO16-A-2 | — | — | — |
| 97 | Injector 3 (N32) | — | W38 | — | 0.5 | EMUPRO16-A-4 | — | — | — |
| 98 | Cam + boost sensor 5V supply (G40/G31) | — | W26 | — | 0.5 | SP-5V1-1 | — | — | — |
| 99 | Knock sensor 5V supply (G61/G66) | — | W27 | — | 0.5 | SP-5V1-1 | — | — | — |
SP-0V
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W13 | — | 0.5 | OEM-T121-108 | — | — | — |
| 1 | — | — | W14 | — | 0.5 | OEM-T121-29 | — | — | — |
| 1 | — | — | W15 | — | 0.5 | OEM-T121-34 | — | — | — |
| 1 | — | — | W16 | — | 0.5 | OEM-T121-36 | — | — | — |
| 1 | — | — | W17 | — | 0.5 | OEM-T121-90 | — | — | — |
| 1 | — | — | W18 | — | 0.5 | OEM-T121-91 | — | — | — |
| 1 | — | — | W19 | — | 0.5 | EMUPRO16-A-20 | — | — | — |
| 1 | — | — | W20 | — | 0.5 | EMUPRO16-B-9 | — | — | — |
| 1 | — | — | W21 | — | 0.5 | EMUPRO16-C-29 | — | — | — |
| 1 | — | — | W22 | — | 0.5 | EMUPRO16-D-17 | — | — | — |
SP-14V
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W1 | — | 0.85 | OEM-T121-121 | — | — | — |
| 1 | — | — | W2 | — | 0.85 | OEM-T121-21 | — | — | — |
| 1 | — | — | W3 | — | 0.85 | EMUPRO16-B-14 | — | — | — |
| 1 | — | — | W4 | — | 0.85 | EMUPRO16-B-8 | — | — | — |
SP-5V1
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W26 | — | 0.5 | OEM-T121-98 | — | — | — |
| 1 | — | — | W27 | — | 0.5 | OEM-T121-99 | — | — | — |
| 1 | — | — | W28 | — | 0.5 | EMUPRO16-C-28 | — | — | — |
SP-GND
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W5 | — | 0.85 | OEM-T121-1 | — | — | — |
| 1 | — | — | W6 | — | 0.85 | OEM-T121-2 | — | — | — |
| 1 | — | — | W7 | — | 0.85 | EMUPRO16-A-11 | — | — | — |
| 1 | — | — | W8 | — | 0.85 | EMUPRO16-A-17 | — | — | — |
| 1 | — | — | W9 | — | 0.85 | EMUPRO16-A-19 | — | — | — |
| 1 | — | — | W10 | — | 0.85 | EMUPRO16-B-19 | — | — | — |
| 1 | — | — | W11 | — | 0.85 | EMUPRO16-C-30 | — | — | — |
| 1 | — | — | W12 | — | 0.85 | EMUPRO16-D-18 | — | — | — |
Pin map
| OEM point | OEM function | OEM family | Target point | Target function | Target family | Wire colour | Evidence |
|---|---|---|---|---|---|---|---|
| OEM-T121-1 | ECU 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-T121-101 | Boost pressure sensor (G31) | analog_in | EMUPRO16-C-10 | Analog 1 (MAP) | analog_in | corroborated | |
| OEM-T121-102 | Ignition coil 1 (N127) | ignition_out | EMUPRO16-A-30 | Ignition 1 | ignition_out | corroborated | |
| OEM-T121-103 | Ignition coil 3 (N158) | ignition_out | EMUPRO16-A-28 | Ignition 3 | ignition_out | corroborated | |
| OEM-T121-104 | Boost control solenoid (N75) | low_side_out | EMUPRO16-B-5 | Auxiliary 5 | low_side_out | corroborated | |
| OEM-T121-105 | Diverter valve (N249) | low_side_out | EMUPRO16-B-6 | Auxiliary 6 | low_side_out | corroborated | |
| OEM-T121-106 | Knock sensor 1 (G61) | knock_in | EMUPRO16-B-16 | Knock sensor 1 | knock_in | corroborated | |
| OEM-T121-107 | Knock sensor 2 (G66) | knock_in | EMUPRO16-B-17 | Knock sensor 2 | knock_in | corroborated | |
| OEM-T121-108 | Sensor 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 | corroborated | |
| OEM-T121-115 | VVT camshaft adjustment valve (N205) | low_side_out | EMUPRO16-B-7 | Auxiliary 7 | low_side_out | corroborated | |
| OEM-T121-117 | Throttle motor G186 (+) | hbridge_out | EMUPRO16-C-25 | H-bridge 1B | hbridge_out | corroborated | |
| OEM-T121-118 | Throttle motor G186 (−) | hbridge_out | EMUPRO16-C-6 | H-bridge 1A | hbridge_out | corroborated | |
| OEM-T121-121 | ECM + coil power (J271 relay feed) | power_in | EMUPRO16-B-14 + EMUPRO16-B-8 | +12V supply + +12V supply | power_in | corroborated | |
| OEM-T121-2 | ECU 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-T121-21 | ECM power (J271 relay feed) | power_in | EMUPRO16-B-14 + EMUPRO16-B-8 | +12V supply + +12V supply | power_in | corroborated | |
| OEM-T121-27 | MAF sensor supply (G70) | power_in | — | — | — | corroborated | |
| OEM-T121-29 | MAF sensor ground (G70) | 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-T121-3 | Ignition switch +12V (term 15) | digital_in | EMUPRO16-B-15 | +12V switched | digital_in | corroborated | |
| OEM-T121-33 | Accelerator pedal position 1 (G79) | analog_in | EMUPRO16-C-18 | Analog 2 | analog_in | corroborated | |
| OEM-T121-34 | Accelerator pedal position 1 ground (G79) | 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-T121-35 | Accelerator pedal position 2 (G185) | analog_in | EMUPRO16-C-11 | Analog 3 | analog_in | corroborated | |
| OEM-T121-36 | Accelerator pedal position 2 ground (G185) | 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-T121-37 | Engine speed signal (tacho to cluster) | tacho_out | EMUPRO16-C-3 | Auxiliary 12 | low_side_out | corroborated | |
| OEM-T121-43 | K-line diagnostics (OBD pin 7) | serial | — | — | — | corroborated | |
| OEM-T121-47 | Check engine light (MIL) | low_side_out | EMUPRO16-B-13 | Auxiliary 8 | low_side_out | corroborated | |
| OEM-T121-48 | EPC warning light | low_side_out | EMUPRO16-A-25 | Auxiliary 9 | low_side_out | corroborated | |
| OEM-T121-5 | Wideband lambda heater (Z19) | low_side_out | EMUPRO16-B-3 | Auxiliary 3 (WBO heater) | low_side_out | corroborated | |
| OEM-T121-51 | Wideband lambda pump (G39) | wb_ip | EMUPRO16-B-20 | WBO 1 IP (LSU 4.9) | wb_ip | corroborated | |
| OEM-T121-52 | Wideband lambda pump (G39) | wb_ip | EMUPRO16-B-24 | WBO 2 IP (LSU 4.9) | wb_ip | corroborated | |
| OEM-T121-53 | MAF sensor signal (G70) | analog_in | EMUPRO16-C-31 | Precision analog 1 | analog_in | corroborated | |
| OEM-T121-54 | Road speed signal (VSS) | digital_in | EMUPRO16-A-13 | Digital 2 | digital_in | corroborated | |
| OEM-T121-58 | CAN bus low | can_l | EMUPRO16-A-32 | CAN 1 low (PC comm) | can_l | corroborated | |
| OEM-T121-60 | CAN bus high | can_h | EMUPRO16-A-31 | CAN 1 high (PC comm) | can_h | corroborated | |
| OEM-T121-62 | Battery constant +12V (term 30) | power_in | — | — | — | corroborated | |
| OEM-T121-63 | Post-cat lambda heater (Z29) | low_side_out | EMUPRO16-B-4 | Auxiliary 4 (WBO heater) | low_side_out | corroborated | |
| OEM-T121-64 | EVAP canister valve (N80) | low_side_out | EMUPRO16-C-1 | Auxiliary 10 | low_side_out | corroborated | |
| OEM-T121-65 | Fuel pump relay control | low_side_out | EMUPRO16-B-1 | Auxiliary 1 (WBO heater) | low_side_out | corroborated | |
| OEM-T121-66 | Secondary-air pump relay (J299) | low_side_out | EMUPRO16-B-2 | Auxiliary 2 (WBO heater) | low_side_out | corroborated | |
| OEM-T121-68 | Post-cat lambda signal (G130) | lambda_nb_in | EMUPRO16-C-34 | Precision analog 4 | analog_in | corroborated | |
| OEM-T121-69 | Post-cat lambda signal (G130) | lambda_nb_in | EMUPRO16-C-12 | Analog 5 | analog_in | corroborated | |
| OEM-T121-70 | Wideband lambda Nernst signal (G39) | wb_vs | EMUPRO16-B-21 | WBO 1 VS (LSU 4.9) | wb_vs | corroborated | |
| OEM-T121-71 | Wideband lambda Nernst signal (G39) | wb_vs | EMUPRO16-B-25 | WBO 2 VS (LSU 4.9) | wb_vs | corroborated | |
| OEM-T121-72 | Accelerator pedal position 1 5V supply (G79) | vref | EMUPRO16-A-12 | +5V source A | vref | corroborated | |
| OEM-T121-73 | Accelerator pedal position 2 5V supply (G185) | vref | EMUPRO16-B-12 | +5V source A (flash drive) | vref | corroborated | |
| OEM-T121-82 | Crank position sensor (G28) | trigger_in | EMUPRO16-A-21 | Digital 1 (crank) | trigger_in | corroborated | |
| OEM-T121-83 | Throttle position sensor 5V supply (G187/G188) | vref | EMUPRO16-C-27 | +5V source B | vref | corroborated | |
| OEM-T121-84 | Throttle position sensor 1 (G187) | analog_in | EMUPRO16-C-32 | Precision analog 2 | analog_in | corroborated | |
| OEM-T121-85 | Intake air temperature (G42) | temp_in | EMUPRO16-D-21 | Precision analog 5 | analog_in | corroborated | |
| OEM-T121-86 | Camshaft position sensor (G40) | trigger_in | — | — | — | corroborated | |
| OEM-T121-88 | Injector 4 (N33) | injector_out | EMUPRO16-A-5 | Injector 4 | injector_out | corroborated | |
| OEM-T121-89 | Injector 2 (N31) | injector_out | EMUPRO16-A-3 | Injector 2 | injector_out | corroborated | |
| OEM-T121-9 | Secondary-air injection valve (N112) | low_side_out | EMUPRO16-C-2 | Auxiliary 11 | low_side_out | corroborated | |
| OEM-T121-90 | Crank position sensor ground (G28) | 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-T121-91 | Throttle position sensor ground (G187/G188) | 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-T121-92 | Throttle position sensor 2 (G188) | analog_in | EMUPRO16-C-33 | Precision analog 3 | analog_in | corroborated | |
| OEM-T121-93 | Engine coolant temperature (G62) | temp_in | EMUPRO16-C-19 | Analog 4 | analog_in | corroborated | |
| OEM-T121-94 | Ignition coil 4 (N163) | ignition_out | EMUPRO16-A-27 | Ignition 4 | ignition_out | corroborated | |
| OEM-T121-95 | Ignition coil 2 (N128) | ignition_out | EMUPRO16-A-29 | Ignition 2 | ignition_out | corroborated | |
| OEM-T121-96 | Injector 1 (N30) | injector_out | EMUPRO16-A-2 | Injector 1 | injector_out | corroborated | |
| OEM-T121-97 | Injector 3 (N32) | injector_out | EMUPRO16-A-4 | Injector 3 | injector_out | corroborated | |
| OEM-T121-98 | Cam + boost sensor 5V supply (G40/G31) | vref | EMUPRO16-C-28 | +5V source B | vref | corroborated | |
| OEM-T121-99 | Knock sensor 5V supply (G61/G66) | vref | EMUPRO16-C-28 | +5V source B | vref | corroborated |
Cut list
| Wire | From | To | Gauge (mm²) | Colour | Length | Signal | Ident |
|---|---|---|---|---|---|---|---|
| W1 | OEM-T121-121 | SP-14V-1 | 0.85 | no route | ECM + coil power (J271 relay feed) | — | |
| W2 | OEM-T121-21 | SP-14V-1 | 0.85 | no route | ECM power (J271 relay feed) | — | |
| W3 | SP-14V-1 | EMUPRO16-B-14 | 0.85 | no route | +12V supply | — | |
| W4 | SP-14V-1 | EMUPRO16-B-8 | 0.85 | no route | +12V supply | — | |
| W5 | OEM-T121-1 | SP-GND-1 | 0.85 | no route | ECU ground | — | |
| W6 | OEM-T121-2 | SP-GND-1 | 0.85 | no route | ECU ground | — | |
| W7 | SP-GND-1 | EMUPRO16-A-11 | 0.85 | no route | Power GND | — | |
| W8 | SP-GND-1 | EMUPRO16-A-17 | 0.85 | no route | Power GND | — | |
| W9 | SP-GND-1 | EMUPRO16-A-19 | 0.85 | no route | Power GND | — | |
| W10 | SP-GND-1 | EMUPRO16-B-19 | 0.85 | no route | Power GND | — | |
| W11 | SP-GND-1 | EMUPRO16-C-30 | 0.85 | no route | Power GND | — | |
| W12 | SP-GND-1 | EMUPRO16-D-18 | 0.85 | no route | Power GND | — | |
| W13 | OEM-T121-108 | SP-0V-1 | 0.5 | no route | Sensor ground | — | |
| W14 | OEM-T121-29 | SP-0V-1 | 0.5 | no route | MAF sensor ground (G70) | — | |
| W15 | OEM-T121-34 | SP-0V-1 | 0.5 | no route | Accelerator pedal position 1 ground (G79) | — | |
| W16 | OEM-T121-36 | SP-0V-1 | 0.5 | no route | Accelerator pedal position 2 ground (G185) | — | |
| W17 | OEM-T121-90 | SP-0V-1 | 0.5 | no route | Crank position sensor ground (G28) | — | |
| W18 | OEM-T121-91 | SP-0V-1 | 0.5 | no route | Throttle position sensor ground (G187/G188) | — | |
| W19 | SP-0V-1 | EMUPRO16-A-20 | 0.5 | no route | Digital GND | — | |
| W20 | SP-0V-1 | EMUPRO16-B-9 | 0.5 | no route | Digital GND (flash drive) | — | |
| W21 | SP-0V-1 | EMUPRO16-C-29 | 0.5 | no route | Analog GND | — | |
| W22 | SP-0V-1 | EMUPRO16-D-17 | 0.5 | no route | Analog GND | — | |
| W23 | OEM-T121-72 | EMUPRO16-A-12 | 0.5 | no route | Accelerator pedal position 1 5V supply (G79) | — | |
| W24 | OEM-T121-73 | EMUPRO16-B-12 | 0.5 | no route | Accelerator pedal position 2 5V supply (G185) | — | |
| W25 | OEM-T121-83 | EMUPRO16-C-27 | 0.5 | no route | Throttle position sensor 5V supply (G187/G188) | — | |
| W26 | OEM-T121-98 | SP-5V1-1 | 0.5 | no route | Cam + boost sensor 5V supply (G40/G31) | — | |
| W27 | OEM-T121-99 | SP-5V1-1 | 0.5 | no route | Knock sensor 5V supply (G61/G66) | — | |
| W28 | SP-5V1-1 | EMUPRO16-C-28 | 0.5 | no route | +5V source B | — | |
| W29 | OEM-T121-82 | EMUPRO16-A-21 | 0.5 | no route | Crank position sensor (G28) | — | |
| W30 | OEM-T121-106 | EMUPRO16-B-16 | 0.5 | no route | Knock sensor 1 (G61) | — | |
| W31 | OEM-T121-107 | EMUPRO16-B-17 | 0.5 | no route | Knock sensor 2 (G66) | — | |
| W32 | OEM-T121-102 | EMUPRO16-A-30 | 0.5 | no route | Ignition coil 1 (N127) | — | |
| W33 | OEM-T121-95 | EMUPRO16-A-29 | 0.5 | no route | Ignition coil 2 (N128) | — | |
| W34 | OEM-T121-103 | EMUPRO16-A-28 | 0.5 | no route | Ignition coil 3 (N158) | — | |
| W35 | OEM-T121-94 | EMUPRO16-A-27 | 0.5 | no route | Ignition coil 4 (N163) | — | |
| W36 | OEM-T121-96 | EMUPRO16-A-2 | 0.5 | no route | Injector 1 (N30) | — | |
| W37 | OEM-T121-89 | EMUPRO16-A-3 | 0.5 | no route | Injector 2 (N31) | — | |
| W38 | OEM-T121-97 | EMUPRO16-A-4 | 0.5 | no route | Injector 3 (N32) | — | |
| W39 | OEM-T121-88 | EMUPRO16-A-5 | 0.5 | no route | Injector 4 (N33) | — | |
| W40 | OEM-T121-118 | EMUPRO16-C-6 | 0.5 | no route | Throttle motor G186 (−) | — | |
| W41 | OEM-T121-117 | EMUPRO16-C-25 | 0.5 | no route | Throttle motor G186 (+) | — | |
| W42 | OEM-T121-3 | EMUPRO16-B-15 | 0.5 | no route | Ignition switch +12V (term 15) | — | |
| W43 | OEM-T121-53 | EMUPRO16-C-31 | 0.5 | no route | MAF sensor signal (G70) | — | |
| W44 | OEM-T121-101 | EMUPRO16-C-10 | 0.5 | no route | Boost pressure sensor (G31) | — | |
| W45 | OEM-T121-33 | EMUPRO16-C-18 | 0.5 | no route | Accelerator pedal position 1 (G79) | — | |
| W46 | OEM-T121-84 | EMUPRO16-C-32 | 0.5 | no route | Throttle position sensor 1 (G187) | — | |
| W47 | OEM-T121-35 | EMUPRO16-C-11 | 0.5 | no route | Accelerator pedal position 2 (G185) | — | |
| W48 | OEM-T121-92 | EMUPRO16-C-33 | 0.5 | no route | Throttle position sensor 2 (G188) | — | |
| W49 | OEM-T121-93 | EMUPRO16-C-19 | 0.5 | no route | Engine coolant temperature (G62) | — | |
| W50 | OEM-T121-65 | EMUPRO16-B-1 | 0.5 | no route | Fuel pump relay control | — | |
| W51 | OEM-T121-66 | EMUPRO16-B-2 | 0.5 | no route | Secondary-air pump relay (J299) | — | |
| W52 | OEM-T121-5 | EMUPRO16-B-3 | 0.5 | no route | Wideband lambda heater (Z19) | — | |
| W53 | OEM-T121-63 | EMUPRO16-B-4 | 0.5 | no route | Post-cat lambda heater (Z29) | — | |
| W54 | OEM-T121-104 | EMUPRO16-B-5 | 0.5 | no route | Boost control solenoid (N75) | — | |
| W55 | OEM-T121-105 | EMUPRO16-B-6 | 0.5 | no route | Diverter valve (N249) | — | |
| W56 | OEM-T121-115 | EMUPRO16-B-7 | 0.5 | no route | VVT camshaft adjustment valve (N205) | — | |
| W57 | OEM-T121-47 | EMUPRO16-B-13 | 0.5 | no route | Check engine light (MIL) | — | |
| W58 | OEM-T121-48 | EMUPRO16-A-25 | 0.5 | no route | EPC warning light | — | |
| W59 | OEM-T121-64 | EMUPRO16-C-1 | 0.5 | no route | EVAP canister valve (N80) | — | |
| W60 | OEM-T121-9 | EMUPRO16-C-2 | 0.5 | no route | Secondary-air injection valve (N112) | — | |
| W61 | OEM-T121-37 | EMUPRO16-C-3 | 0.5 | no route | Engine speed signal (tacho to cluster) | — | |
| W62 | OEM-T121-51 | EMUPRO16-B-20 | 0.5 | no route | Wideband lambda pump (G39) | — | |
| W63 | OEM-T121-52 | EMUPRO16-B-24 | 0.5 | no route | Wideband lambda pump (G39) | — | |
| W64 | OEM-T121-70 | EMUPRO16-B-21 | 0.5 | no route | Wideband lambda Nernst signal (G39) | — | |
| W65 | OEM-T121-71 | EMUPRO16-B-25 | 0.5 | no route | Wideband lambda Nernst signal (G39) | — | |
| W66 | OEM-T121-68 | EMUPRO16-C-34 | 0.5 | no route | Post-cat lambda signal (G130) | — | |
| W67 | OEM-T121-69 | EMUPRO16-C-12 | 0.5 | no route | Post-cat lambda signal (G130) | — | |
| W68 | OEM-T121-85 | EMUPRO16-D-21 | 0.5 | no route | Intake air temperature (G42) | — | |
| W69 | OEM-T121-54 | EMUPRO16-A-13 | 0.5 | no route | Road speed signal (VSS) | — | |
| W70 | OEM-T121-60 | EMUPRO16-A-31 | 0.5 | no route | CAN bus high | — | |
| W71 | OEM-T121-58 | EMUPRO16-A-32 | 0.5 | no route | CAN bus low | — |
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) | 59.000 | ea |
ECU setup sheet
| Role | Engine ref | Engine signal | Sensor | ECU point | ECU function | ECU class | Setup flag |
|---|---|---|---|---|---|---|---|
| No configured channels. | |||||||
Findings
Open (9)
| Severity | Code | Subject | Message |
|---|---|---|---|
| error | REQUIRED_UNMAPPED | OEM-T121-86 | Required OEM function "Camshaft position sensor (G40)" (trigger_in) is not connected to the new ECU. |
| warn | DBW_MOTOR_CURRENT | EMUPRO16-C-25 | Cannot confirm EMU PRO 16 can drive the throttle motor: EMUPRO16-C-25 "H-bridge 1B" is rated 7.0 A peak, but the motor stall current at OEM-T121-117 is unknown. Add the motor's peak current from a source, or measure the motor resistance: peak ≈ 14 V ÷ R (Hondata measured 4.9 A for a Civic Si body, 10.4 A for a ZDX body; holding current is about 1 A). |
| warn | DBW_MOTOR_CURRENT | EMUPRO16-C-6 | Cannot confirm EMU PRO 16 can drive the throttle motor: EMUPRO16-C-6 "H-bridge 1A" is rated 7.0 A peak, but the motor stall current at OEM-T121-118 is unknown. Add the motor's peak current from a source, or measure the motor resistance: peak ≈ 14 V ÷ R (Hondata measured 4.9 A for a Civic Si body, 10.4 A for a ZDX body; holding current is about 1 A). |
| warn | DBW_SHARED_5V | EMUPRO16-C-28 + OEM-T121-98 + OEM-T121-99 + SP-5V1-1 | These 5 V supplies are separate in the stock car (OEM-T121-98 [cam_boost], OEM-T121-99 [knock]) and here share one ECU 5 V (EMUPRO16-C-28). On a drive-by-wire car the OEM splits them so one short or fault can't corrupt both throttle/pedal tracks at once. EMU PRO 16 has 4 5 V sensor supply pin(s). All are in use, so decide: accept the shared supply (and rely on the ECU's DBW fault checks), or add a separate regulated 5 V for the sub tracks. |
| warn | SUPPLY_GROUP | EMUPRO16-C-28 + OEM-T121-98 + OEM-T121-99 + SP-5V1-1 | Supplies meant to stay independent share one net: OEM-T121-98 [cam_boost], OEM-T121-99 [knock]. The new ECU has no free 5 V reference, so they share one: normal on a standalone, but a short on any of these sensors drops them all. |
| info | NET_FAMILY | OEM-T121-37 ↔ EMUPRO16-C-3 | OEM-T121-37 "Engine speed signal (tacho to cluster)" [tacho_out] is wired to EMUPRO16-C-3 "Auxiliary 12" [low_side_out]. Tacho as a low-side output: check the tach needs a pull-up. |
| info | NET_FAMILY | OEM-T121-85 ↔ EMUPRO16-D-21 | OEM-T121-85 "Intake air temperature (G42)" [temp_in] is wired to EMUPRO16-D-21 "Precision analog 5" [analog_in]. Thermistor on a plain analog input needs a pull-up; check the channel can enable one. |
| info | NET_FAMILY | OEM-T121-93 ↔ EMUPRO16-C-19 | OEM-T121-93 "Engine coolant temperature (G62)" [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 | UNMAPPED | OEM | 2 optional OEM pins are not mapped: OEM-T121-27 MAF sensor supply (G70); OEM-T121-43 K-line diagnostics (OBD pin 7) |
Accepted (1)
| Code | Subject | Reason | By |
|---|---|---|---|
| REQUIRED_UNMAPPED | OEM-T121-62 | 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-T121 86: Camshaft position sensor (G40): no free cam_hall/cam_vr/frequency_in input on ECUMASTER EMU PRO 16 Not wired: - OEM-T121 62: Battery constant +12V (term 30): ECUMASTER EMU PRO 16 has no battery-constant input; not needed - OEM-T121 43: K-line diagnostics (OBD pin 7): no free k_line on ECUMASTER EMU PRO 16 - OEM-T121 27: MAF sensor supply (G70): no rule for class sensor_supply_in; 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 |
| 3 | community_copy | NefMoto: ME7.5 ECU bench-flashing power/ground pins | http://nefmoto.com/wiki/index.php?title=ECU_Bench_Flashing | — | — | — |
| 3 | community_copy | vwressources: Bosch Motronic ME7.5 (AMK/ARY/AUQ/ARX/AUM) T121 pinout | https://www.vwressources.planethoster.world/me75_pinout.html | — | — | — |