BMW 3 Series E36 1990–2000 (M50/M52) → ECUMASTER EMU PRO 16 (auto)
Before you start
| 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 | 54 wires · 8 connectors · 6 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-X-54 | 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-X-15 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W5 | OEM-X-34 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W6 | OEM-X-55 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W7 | OEM-X-6 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W8 | SP-GND-1 | EMUPRO16-A-11 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W9 | SP-GND-1 | EMUPRO16-A-17 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W10 | SP-GND-1 | EMUPRO16-A-19 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W11 | SP-GND-1 | EMUPRO16-B-19 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W12 | SP-GND-1 | EMUPRO16-C-30 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W13 | SP-GND-1 | EMUPRO16-D-18 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W14 | OEM-X-28 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W15 | OEM-X-40 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W16 | OEM-X-43 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W17 | OEM-X-44 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W18 | OEM-X-71 | 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-X-59 | EMUPRO16-A-12 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W24 | OEM-X-16 | EMUPRO16-A-21 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W25 | OEM-X-70 | EMUPRO16-B-16 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W26 | OEM-X-69 | EMUPRO16-B-17 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W27 | OEM-X-50 | EMUPRO16-A-30 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W28 | OEM-X-51 | EMUPRO16-A-29 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W29 | OEM-X-52 | EMUPRO16-A-28 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W30 | OEM-X-23 | EMUPRO16-A-27 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W31 | OEM-X-25 | EMUPRO16-A-26 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W32 | OEM-X-24 | EMUPRO16-A-18 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W33 | OEM-X-33 | EMUPRO16-A-2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W34 | OEM-X-32 | EMUPRO16-A-3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W35 | OEM-X-31 | EMUPRO16-A-4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W36 | OEM-X-5 | EMUPRO16-A-5 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W37 | OEM-X-3 | EMUPRO16-A-6 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W38 | OEM-X-4 | EMUPRO16-A-7 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W39 | OEM-X-56 | EMUPRO16-B-15 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W40 | OEM-X-1 | EMUPRO16-B-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W41 | OEM-X-27 | EMUPRO16-B-2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W42 | OEM-X-38 | EMUPRO16-B-3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W43 | OEM-X-2 | EMUPRO16-B-4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W44 | OEM-X-29 | EMUPRO16-B-5 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W45 | OEM-X-36 | EMUPRO16-B-6 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W46 | OEM-X-7 | EMUPRO16-B-7 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W47 | OEM-X-8 | EMUPRO16-B-13 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W48 | OEM-X-47 | EMUPRO16-A-25 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W49 | OEM-X-41 | EMUPRO16-C-31 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W50 | OEM-X-73 | EMUPRO16-C-18 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W51 | OEM-X-13 | EMUPRO16-C-32 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W52 | OEM-X-78 | EMUPRO16-C-11 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W53 | OEM-X-77 | EMUPRO16-C-33 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W54 | OEM-X-42 | EMUPRO16-A-13 | 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 |
Revisions
| Rev | Label | By | Date |
|---|---|---|---|
| No revisions yet. | |||
Schematic
Connectors
EMUPRO16-A
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Ignition 8 | — | — | — | — | — | — | — | — |
| 2 | Injector 1 | — | W33 | — | 0.5 | OEM-X-33 | — | — | — |
| 3 | Injector 2 | — | W34 | — | 0.5 | OEM-X-32 | — | — | — |
| 4 | Injector 3 | — | W35 | — | 0.5 | OEM-X-31 | — | — | — |
| 5 | Injector 4 | — | W36 | — | 0.5 | OEM-X-5 | — | — | — |
| 6 | Injector 5 | — | W37 | — | 0.5 | OEM-X-3 | — | — | — |
| 7 | Injector 6 | — | W38 | — | 0.5 | OEM-X-4 | — | — | — |
| 8 | Injector 7 | — | — | — | — | — | — | — | — |
| 9 | Injector 8 | — | — | — | — | — | — | — | — |
| 10 | Ignition 7 | — | — | — | — | — | — | — | — |
| 11 | Power GND | — | W8 | — | 0.85 | SP-GND-1 | — | — | — |
| 12 | +5V source A | — | W23 | — | 0.5 | OEM-X-59 | — | — | — |
| 13 | Digital 2 | — | W54 | — | 0.5 | OEM-X-42 | — | — | — |
| 14 | Digital 4 | — | — | — | — | — | — | — | — |
| 15 | Digital 8 | — | — | — | — | — | — | — | — |
| 16 | Digital 6 (turbo) | — | — | — | — | — | — | — | — |
| 17 | Power GND | — | W9 | — | 0.85 | SP-GND-1 | — | — | — |
| 18 | Ignition 6 | — | W32 | — | 0.5 | OEM-X-24 | — | — | — |
| 19 | Power GND | — | W10 | — | 0.85 | SP-GND-1 | — | — | — |
| 20 | Digital GND | — | W19 | — | 0.5 | SP-0V-1 | — | — | — |
| 21 | Digital 1 (crank) | — | W24 | — | 0.5 | OEM-X-16 | — | — | — |
| 22 | Digital 3 | — | — | — | — | — | — | — | — |
| 23 | Digital 7 | — | — | — | — | — | — | — | — |
| 24 | Digital 5 (turbo) | — | — | — | — | — | — | — | — |
| 25 | Auxiliary 9 | — | W48 | — | 0.5 | OEM-X-47 | — | — | — |
| 26 | Ignition 5 | — | W31 | — | 0.5 | OEM-X-25 | — | — | — |
| 27 | Ignition 4 | — | W30 | — | 0.5 | OEM-X-23 | — | — | — |
| 28 | Ignition 3 | — | W29 | — | 0.5 | OEM-X-52 | — | — | — |
| 29 | Ignition 2 | — | W28 | — | 0.5 | OEM-X-51 | — | — | — |
| 30 | Ignition 1 | — | W27 | — | 0.5 | OEM-X-50 | — | — | — |
| 31 | CAN 1 high (PC comm) | — | — | — | — | — | — | — | — |
| 32 | CAN 1 low (PC comm) | — | — | — | — | — | — | — | — |
| 33 | CAN 2 high | — | — | — | — | — | — | — | — |
| 34 | CAN 2 low | — | — | — | — | — | — | — | — |
EMUPRO16-B
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Auxiliary 1 (WBO heater) | — | W40 | — | 0.5 | OEM-X-1 | — | — | — |
| 2 | Auxiliary 2 (WBO heater) | — | W41 | — | 0.5 | OEM-X-27 | — | — | — |
| 3 | Auxiliary 3 (WBO heater) | — | W42 | — | 0.5 | OEM-X-38 | — | — | — |
| 4 | Auxiliary 4 (WBO heater) | — | W43 | — | 0.5 | OEM-X-2 | — | — | — |
| 5 | Auxiliary 5 | — | W44 | — | 0.5 | OEM-X-29 | — | — | — |
| 6 | Auxiliary 6 | — | W45 | — | 0.5 | OEM-X-36 | — | — | — |
| 7 | Auxiliary 7 | — | W46 | — | 0.5 | OEM-X-7 | — | — | — |
| 8 | +12V supply | — | W3 | — | 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) | — | — | — | — | — | — | — | — |
| 13 | Auxiliary 8 | — | W47 | — | 0.5 | OEM-X-8 | — | — | — |
| 14 | +12V supply | — | W2 | — | 0.85 | SP-14V-1 | — | — | — |
| 15 | +12V switched | — | W39 | — | 0.5 | OEM-X-56 | — | — | — |
| 16 | Knock sensor 1 | — | W25 | — | 0.5 | OEM-X-70 | — | — | — |
| 17 | Knock sensor 2 | — | W26 | — | 0.5 | OEM-X-69 | — | — | — |
| 18 | WBO 2 VGND (LSU 4.9) | — | — | — | — | — | — | — | — |
| 19 | Power GND | — | W11 | — | 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
| 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 | — | W52 | — | 0.5 | OEM-X-78 | — | — | — |
| 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 | — | W50 | — | 0.5 | OEM-X-73 | — | — | — |
| 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 | — | W21 | — | 0.5 | SP-0V-1 | — | — | — |
| 30 | Power GND | — | W12 | — | 0.85 | SP-GND-1 | — | — | — |
| 31 | Precision analog 1 | — | W49 | — | 0.5 | OEM-X-41 | — | — | — |
| 32 | Precision analog 2 | — | W51 | — | 0.5 | OEM-X-13 | — | — | — |
| 33 | Precision analog 3 | — | W53 | — | 0.5 | OEM-X-77 | — | — | — |
| 34 | Precision analog 4 | — | — | — | — | — | — | — | — |
EMUPRO16-D
| 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 | — | W13 | — | 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-X
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Fuel pump relay control | — | W40 | — | 0.5 | EMUPRO16-B-1 | — | — | — |
| 13 | O2 sensor signal | — | W51 | — | 0.5 | EMUPRO16-C-32 | — | — | — |
| 15 | Ground | — | W4 | — | 0.85 | SP-GND-1 | — | — | — |
| 16 | Crank position sensor (+) | — | W24 | — | 0.5 | EMUPRO16-A-21 | — | — | — |
| 17 | Camshaft position sensor (Hall) | — | — | — | — | — | — | — | — |
| 2 | Idle speed control valve (close winding) | — | W43 | — | 0.5 | EMUPRO16-B-4 | — | — | — |
| 23 | Ignition coil cylinder 4 | — | W30 | — | 0.5 | EMUPRO16-A-27 | — | — | — |
| 24 | Ignition coil cylinder 6 | — | W32 | — | 0.5 | EMUPRO16-A-18 | — | — | — |
| 25 | Ignition coil cylinder 5 | — | W31 | — | 0.5 | EMUPRO16-A-26 | — | — | — |
| 26 | Battery voltage (constant +12V) | — | — | — | — | — | — | — | — |
| 27 | Main relay control | — | W41 | — | 0.5 | EMUPRO16-B-2 | — | — | — |
| 28 | Ground (electronics + sensor shielding) | — | W14 | — | 0.5 | SP-0V-1 | — | — | — |
| 29 | Idle speed control valve (open winding) | — | W44 | — | 0.5 | EMUPRO16-B-5 | — | — | — |
| 3 | Injector cylinder 5 | — | W37 | — | 0.5 | EMUPRO16-A-6 | — | — | — |
| 31 | Injector cylinder 3 | — | W35 | — | 0.5 | EMUPRO16-A-4 | — | — | — |
| 32 | Injector cylinder 2 | — | W34 | — | 0.5 | EMUPRO16-A-3 | — | — | — |
| 33 | Injector cylinder 1 | — | W33 | — | 0.5 | EMUPRO16-A-2 | — | — | — |
| 34 | Ground (output stages) | — | W5 | — | 0.85 | SP-GND-1 | — | — | — |
| 36 | Evap purge solenoid | — | W45 | — | 0.5 | EMUPRO16-B-6 | — | — | — |
| 38 | O2 sensor heater relay control | — | W42 | — | 0.5 | EMUPRO16-B-3 | — | — | — |
| 4 | Injector cylinder 6 | — | W38 | — | 0.5 | EMUPRO16-A-7 | — | — | — |
| 40 | O2 sensor signal ground | — | W15 | — | 0.5 | SP-0V-1 | — | — | — |
| 41 | Mass air flow (MAF) signal | — | W49 | — | 0.5 | EMUPRO16-C-31 | — | — | — |
| 42 | Vehicle speed signal | — | W54 | — | 0.5 | EMUPRO16-A-13 | — | — | — |
| 43 | Crank position sensor (-) | — | W16 | — | 0.5 | SP-0V-1 | — | — | — |
| 44 | Sensor ground (IAT/ECT/TPS) | — | W17 | — | 0.5 | SP-0V-1 | — | — | — |
| 45 | Shield ground | — | — | — | — | — | — | — | — |
| 47 | Tachometer output | — | W48 | — | 0.5 | EMUPRO16-A-25 | — | — | — |
| 5 | Injector cylinder 4 | — | W36 | — | 0.5 | EMUPRO16-A-5 | — | — | — |
| 50 | Ignition coil cylinder 1 | — | W27 | — | 0.5 | EMUPRO16-A-30 | — | — | — |
| 51 | Ignition coil cylinder 2 | — | W28 | — | 0.5 | EMUPRO16-A-29 | — | — | — |
| 52 | Ignition coil cylinder 3 | — | W29 | — | 0.5 | EMUPRO16-A-28 | — | — | — |
| 54 | ECU power (+14V from main relay) | — | W1 | — | 0.85 | SP-14V-1 | — | — | — |
| 55 | Ground (ignition) | — | W6 | — | 0.85 | SP-GND-1 | — | — | — |
| 56 | Ignition switch (terminal 15) | — | W39 | — | 0.5 | EMUPRO16-B-15 | — | — | — |
| 59 | +5V sensor supply | — | W23 | — | 0.5 | EMUPRO16-A-12 | — | — | — |
| 6 | Ground (injector output stages) | — | W7 | — | 0.85 | SP-GND-1 | — | — | — |
| 69 | Knock sensor cylinders 4-6 | — | W26 | — | 0.5 | EMUPRO16-B-17 | — | — | — |
| 7 | VANOS intake camshaft solenoid | — | W46 | — | 0.5 | EMUPRO16-B-7 | — | — | — |
| 70 | Knock sensor cylinders 1-3 | — | W25 | — | 0.5 | EMUPRO16-B-16 | — | — | — |
| 71 | Knock sensor ground/shield | — | W18 | — | 0.5 | SP-0V-1 | — | — | — |
| 73 | Throttle position (TPS) | — | W50 | — | 0.5 | EMUPRO16-C-18 | — | — | — |
| 77 | Intake air temperature (IAT) | — | W53 | — | 0.5 | EMUPRO16-C-33 | — | — | — |
| 78 | Engine coolant temperature (ECT) | — | W52 | — | 0.5 | EMUPRO16-C-11 | — | — | — |
| 8 | Check engine light (MIL) | — | W47 | — | 0.5 | EMUPRO16-B-13 | — | — | — |
SP-0V
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W14 | — | 0.5 | OEM-X-28 | — | — | — |
| 1 | — | — | W15 | — | 0.5 | OEM-X-40 | — | — | — |
| 1 | — | — | W16 | — | 0.5 | OEM-X-43 | — | — | — |
| 1 | — | — | W17 | — | 0.5 | OEM-X-44 | — | — | — |
| 1 | — | — | W18 | — | 0.5 | OEM-X-71 | — | — | — |
| 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-X-54 | — | — | — |
| 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-X-15 | — | — | — |
| 1 | — | — | W5 | — | 0.85 | OEM-X-34 | — | — | — |
| 1 | — | — | W6 | — | 0.85 | OEM-X-55 | — | — | — |
| 1 | — | — | W7 | — | 0.85 | OEM-X-6 | — | — | — |
| 1 | — | — | W8 | — | 0.85 | EMUPRO16-A-11 | — | — | — |
| 1 | — | — | W9 | — | 0.85 | EMUPRO16-A-17 | — | — | — |
| 1 | — | — | W10 | — | 0.85 | EMUPRO16-A-19 | — | — | — |
| 1 | — | — | W11 | — | 0.85 | EMUPRO16-B-19 | — | — | — |
| 1 | — | — | W12 | — | 0.85 | EMUPRO16-C-30 | — | — | — |
| 1 | — | — | W13 | — | 0.85 | EMUPRO16-D-18 | — | — | — |
Pin map
| OEM point | OEM function | OEM family | Target point | Target function | Target family | Wire colour | Evidence |
|---|---|---|---|---|---|---|---|
| OEM-X-1 | Fuel pump relay control | low_side_out | EMUPRO16-B-1 | Auxiliary 1 (WBO heater) | low_side_out | corroborated | |
| OEM-X-13 | O2 sensor signal | lambda_nb_in | EMUPRO16-C-32 | Precision analog 2 | analog_in | corroborated | |
| OEM-X-15 | 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-X-16 | Crank position sensor (+) | trigger_in | EMUPRO16-A-21 | Digital 1 (crank) | trigger_in | corroborated | |
| OEM-X-17 | Camshaft position sensor (Hall) | trigger_in | — | — | — | corroborated | |
| OEM-X-2 | Idle speed control valve (close winding) | low_side_out | EMUPRO16-B-4 | Auxiliary 4 (WBO heater) | low_side_out | corroborated | |
| OEM-X-23 | Ignition coil cylinder 4 | ignition_out | EMUPRO16-A-27 | Ignition 4 | ignition_out | corroborated | |
| OEM-X-24 | Ignition coil cylinder 6 | ignition_out | EMUPRO16-A-18 | Ignition 6 | ignition_out | corroborated | |
| OEM-X-25 | Ignition coil cylinder 5 | ignition_out | EMUPRO16-A-26 | Ignition 5 | ignition_out | corroborated | |
| OEM-X-26 | Battery voltage (constant +12V) | power_in | — | — | — | corroborated | |
| OEM-X-27 | Main relay control | low_side_out | EMUPRO16-B-2 | Auxiliary 2 (WBO heater) | low_side_out | corroborated | |
| OEM-X-28 | Ground (electronics + sensor shielding) | 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-X-29 | Idle speed control valve (open winding) | low_side_out | EMUPRO16-B-5 | Auxiliary 5 | low_side_out | corroborated | |
| OEM-X-3 | Injector cylinder 5 | injector_out | EMUPRO16-A-6 | Injector 5 | injector_out | corroborated | |
| OEM-X-31 | Injector cylinder 3 | injector_out | EMUPRO16-A-4 | Injector 3 | injector_out | corroborated | |
| OEM-X-32 | Injector cylinder 2 | injector_out | EMUPRO16-A-3 | Injector 2 | injector_out | corroborated | |
| OEM-X-33 | Injector cylinder 1 | injector_out | EMUPRO16-A-2 | Injector 1 | injector_out | corroborated | |
| OEM-X-34 | Ground (output stages) | 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-X-36 | Evap purge solenoid | low_side_out | EMUPRO16-B-6 | Auxiliary 6 | low_side_out | corroborated | |
| OEM-X-38 | O2 sensor heater relay control | low_side_out | EMUPRO16-B-3 | Auxiliary 3 (WBO heater) | low_side_out | corroborated | |
| OEM-X-4 | Injector cylinder 6 | injector_out | EMUPRO16-A-7 | Injector 6 | injector_out | corroborated | |
| OEM-X-40 | O2 sensor signal 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-X-41 | Mass air flow (MAF) signal | analog_in | EMUPRO16-C-31 | Precision analog 1 | analog_in | corroborated | |
| OEM-X-42 | Vehicle speed signal | digital_in | EMUPRO16-A-13 | Digital 2 | digital_in | corroborated | |
| OEM-X-43 | Crank position sensor (-) | 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-X-44 | Sensor ground (IAT/ECT/TPS) | 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-X-45 | Shield ground | shield | — | — | — | corroborated | |
| OEM-X-47 | Tachometer output | tacho_out | EMUPRO16-A-25 | Auxiliary 9 | low_side_out | corroborated | |
| OEM-X-5 | Injector cylinder 4 | injector_out | EMUPRO16-A-5 | Injector 4 | injector_out | corroborated | |
| OEM-X-50 | Ignition coil cylinder 1 | ignition_out | EMUPRO16-A-30 | Ignition 1 | ignition_out | corroborated | |
| OEM-X-51 | Ignition coil cylinder 2 | ignition_out | EMUPRO16-A-29 | Ignition 2 | ignition_out | corroborated | |
| OEM-X-52 | Ignition coil cylinder 3 | ignition_out | EMUPRO16-A-28 | Ignition 3 | ignition_out | corroborated | |
| OEM-X-54 | ECU power (+14V from main relay) | power_in | EMUPRO16-B-14 + EMUPRO16-B-8 | +12V supply + +12V supply | power_in | corroborated | |
| OEM-X-55 | Ground (ignition) | 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-X-56 | Ignition switch (terminal 15) | digital_in | EMUPRO16-B-15 | +12V switched | digital_in | corroborated | |
| OEM-X-59 | +5V sensor supply | vref | EMUPRO16-A-12 | +5V source A | vref | corroborated | |
| OEM-X-6 | Ground (injector output stages) | 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-X-69 | Knock sensor cylinders 4-6 | knock_in | EMUPRO16-B-17 | Knock sensor 2 | knock_in | corroborated | |
| OEM-X-7 | VANOS intake camshaft solenoid | low_side_out | EMUPRO16-B-7 | Auxiliary 7 | low_side_out | corroborated | |
| OEM-X-70 | Knock sensor cylinders 1-3 | knock_in | EMUPRO16-B-16 | Knock sensor 1 | knock_in | corroborated | |
| OEM-X-71 | Knock sensor ground/shield | 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-X-73 | Throttle position (TPS) | analog_in | EMUPRO16-C-18 | Analog 2 | analog_in | corroborated | |
| OEM-X-77 | Intake air temperature (IAT) | temp_in | EMUPRO16-C-33 | Precision analog 3 | analog_in | corroborated | |
| OEM-X-78 | Engine coolant temperature (ECT) | temp_in | EMUPRO16-C-11 | Analog 3 | analog_in | corroborated | |
| OEM-X-8 | Check engine light (MIL) | low_side_out | EMUPRO16-B-13 | Auxiliary 8 | low_side_out | corroborated |
Cut list
| Wire | From | To | Gauge (mm²) | Colour | Length | Signal | Ident |
|---|---|---|---|---|---|---|---|
| W1 | OEM-X-54 | SP-14V-1 | 0.85 | no route | ECU power (+14V from main 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-X-15 | SP-GND-1 | 0.85 | no route | Ground | — | |
| W5 | OEM-X-34 | SP-GND-1 | 0.85 | no route | Ground (output stages) | — | |
| W6 | OEM-X-55 | SP-GND-1 | 0.85 | no route | Ground (ignition) | — | |
| W7 | OEM-X-6 | SP-GND-1 | 0.85 | no route | Ground (injector output stages) | — | |
| W8 | SP-GND-1 | EMUPRO16-A-11 | 0.85 | no route | Power GND | — | |
| W9 | SP-GND-1 | EMUPRO16-A-17 | 0.85 | no route | Power GND | — | |
| W10 | SP-GND-1 | EMUPRO16-A-19 | 0.85 | no route | Power GND | — | |
| W11 | SP-GND-1 | EMUPRO16-B-19 | 0.85 | no route | Power GND | — | |
| W12 | SP-GND-1 | EMUPRO16-C-30 | 0.85 | no route | Power GND | — | |
| W13 | SP-GND-1 | EMUPRO16-D-18 | 0.85 | no route | Power GND | — | |
| W14 | OEM-X-28 | SP-0V-1 | 0.5 | no route | Ground (electronics + sensor shielding) | — | |
| W15 | OEM-X-40 | SP-0V-1 | 0.5 | no route | O2 sensor signal ground | — | |
| W16 | OEM-X-43 | SP-0V-1 | 0.5 | no route | Crank position sensor (-) | — | |
| W17 | OEM-X-44 | SP-0V-1 | 0.5 | no route | Sensor ground (IAT/ECT/TPS) | — | |
| W18 | OEM-X-71 | SP-0V-1 | 0.5 | no route | Knock sensor ground/shield | — | |
| 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-X-59 | EMUPRO16-A-12 | 0.5 | no route | +5V sensor supply | — | |
| W24 | OEM-X-16 | EMUPRO16-A-21 | 0.5 | no route | Crank position sensor (+) | — | |
| W25 | OEM-X-70 | EMUPRO16-B-16 | 0.5 | no route | Knock sensor cylinders 1-3 | — | |
| W26 | OEM-X-69 | EMUPRO16-B-17 | 0.5 | no route | Knock sensor cylinders 4-6 | — | |
| W27 | OEM-X-50 | EMUPRO16-A-30 | 0.5 | no route | Ignition coil cylinder 1 | — | |
| W28 | OEM-X-51 | EMUPRO16-A-29 | 0.5 | no route | Ignition coil cylinder 2 | — | |
| W29 | OEM-X-52 | EMUPRO16-A-28 | 0.5 | no route | Ignition coil cylinder 3 | — | |
| W30 | OEM-X-23 | EMUPRO16-A-27 | 0.5 | no route | Ignition coil cylinder 4 | — | |
| W31 | OEM-X-25 | EMUPRO16-A-26 | 0.5 | no route | Ignition coil cylinder 5 | — | |
| W32 | OEM-X-24 | EMUPRO16-A-18 | 0.5 | no route | Ignition coil cylinder 6 | — | |
| W33 | OEM-X-33 | EMUPRO16-A-2 | 0.5 | no route | Injector cylinder 1 | — | |
| W34 | OEM-X-32 | EMUPRO16-A-3 | 0.5 | no route | Injector cylinder 2 | — | |
| W35 | OEM-X-31 | EMUPRO16-A-4 | 0.5 | no route | Injector cylinder 3 | — | |
| W36 | OEM-X-5 | EMUPRO16-A-5 | 0.5 | no route | Injector cylinder 4 | — | |
| W37 | OEM-X-3 | EMUPRO16-A-6 | 0.5 | no route | Injector cylinder 5 | — | |
| W38 | OEM-X-4 | EMUPRO16-A-7 | 0.5 | no route | Injector cylinder 6 | — | |
| W39 | OEM-X-56 | EMUPRO16-B-15 | 0.5 | no route | Ignition switch (terminal 15) | — | |
| W40 | OEM-X-1 | EMUPRO16-B-1 | 0.5 | no route | Fuel pump relay control | — | |
| W41 | OEM-X-27 | EMUPRO16-B-2 | 0.5 | no route | Main relay control | — | |
| W42 | OEM-X-38 | EMUPRO16-B-3 | 0.5 | no route | O2 sensor heater relay control | — | |
| W43 | OEM-X-2 | EMUPRO16-B-4 | 0.5 | no route | Idle speed control valve (close winding) | — | |
| W44 | OEM-X-29 | EMUPRO16-B-5 | 0.5 | no route | Idle speed control valve (open winding) | — | |
| W45 | OEM-X-36 | EMUPRO16-B-6 | 0.5 | no route | Evap purge solenoid | — | |
| W46 | OEM-X-7 | EMUPRO16-B-7 | 0.5 | no route | VANOS intake camshaft solenoid | — | |
| W47 | OEM-X-8 | EMUPRO16-B-13 | 0.5 | no route | Check engine light (MIL) | — | |
| W48 | OEM-X-47 | EMUPRO16-A-25 | 0.5 | no route | Tachometer output | — | |
| W49 | OEM-X-41 | EMUPRO16-C-31 | 0.5 | no route | Mass air flow (MAF) signal | — | |
| W50 | OEM-X-73 | EMUPRO16-C-18 | 0.5 | no route | Throttle position (TPS) | — | |
| W51 | OEM-X-13 | EMUPRO16-C-32 | 0.5 | no route | O2 sensor signal | — | |
| W52 | OEM-X-78 | EMUPRO16-C-11 | 0.5 | no route | Engine coolant temperature (ECT) | — | |
| W53 | OEM-X-77 | EMUPRO16-C-33 | 0.5 | no route | Intake air temperature (IAT) | — | |
| W54 | OEM-X-42 | EMUPRO16-A-13 | 0.5 | no route | Vehicle speed 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 |
| connector | BMW-E36-DME-CONN | BMW | E36 DME (M3.1/M3.3.1) harness connector | 1.000 | ea |
| terminal | 3-1447221-4 | TE | Superseal 1.0 socket terminal, 20 AWG (0.5 sq mm) | 44.000 | 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-X-17 | Required OEM function "Camshaft position sensor (Hall)" (trigger_in) is not connected to the new ECU. |
| info | NET_FAMILY | OEM-X-47 ↔ EMUPRO16-A-25 | OEM-X-47 "Tachometer output" [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 | NET_FAMILY | OEM-X-77 ↔ EMUPRO16-C-33 | OEM-X-77 "Intake air temperature (IAT)" [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-X-78 ↔ EMUPRO16-C-11 | OEM-X-78 "Engine coolant temperature (ECT)" [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-X-45 Shield ground |
Accepted (1)
| Code | Subject | Reason | By |
|---|---|---|---|
| REQUIRED_UNMAPPED | OEM-X-26 | 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 2026-10-06. Review every wire against both manuals before building. Open items: - OEM-X 17: Camshaft position sensor (Hall): no free cam_hall/cam_vr/frequency_in input on ECUMASTER EMU PRO 16 Not wired: - OEM-X 26: Battery voltage (constant +12V): ECUMASTER EMU PRO 16 has no battery-constant input; not needed - OEM-X 45: Shield ground: no shield pin on ECUMASTER EMU PRO 16
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 |
| 4 | vendor_doc | Link BMWLink E36X (G4X) plug-in install manual | https://linkecu.com/documentation/E36X.pdf | archive | 2026-10-05 | 010cda3acd08 |
| 2 | community_copy | bimmer-service: Bosch Motronic M3.3.1 pinout (E36 M50) | https://www.bimmer-service.com/2025/11/17/bosch-motronic-m3-3-1-pinout-wiring-diagram/ | — | — | — |