Toyota Supra A70 1986-92 (7M-GTE) → MoTeC M150 13150 (auto)
Toyota Supra A70 1986-92 (7M-GTE) — MoTeC — M150
⚠ NOT CHECKED. Don't build from this.
Drawn by Michael Gnankou · Rev 0 · draft · 2026-10-11
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 | 3: read the Findings page before cutting any wire |
| Size of the job | 22 wires · 9 connectors · 0 part lines |
| Tools | Crimp and extraction tools for each terminal family (see Connectors) · wire strippers · multimeter · heat gun + heat-shrink |
| Order of work | 1. Check every part against the parts list. 2. Cut and label every wire (labels: Export → Wire labels). 3. Crimp and pin connector by connector, ticking the build checklist. 4. Run the bench test with nothing plugged in and the battery disconnected. 5. Only then connect the ECU and power up. |
Build checklist
Tick each box as you go. Continuity: meter from end to end, expect under 1 Ω.
| Wire | From | To | Gauge | Colour | Cut | Label | Crimp A | Crimp B | Pin A | Pin B | Continuity |
|---|---|---|---|---|---|---|---|---|---|---|---|
| W1 | OEM-A-26 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W2 | SP-GND-1 | M150-A-24 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W3 | SP-GND-1 | M150-A-25 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W4 | SP-GND-1 | M150-A-32 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W5 | SP-GND-1 | M150-C-10 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W6 | SP-GND-1 | M150-C-11 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W7 | OEM-B-9 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W8 | SP-0V-1 | M150-A-26 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W9 | SP-0V-1 | M150-A-27 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W10 | SP-0V-1 | M150-A-33 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W11 | SP-0V-1 | M150-A-34 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W12 | SP-0V-1 | M150-D-15 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W13 | SP-0V-1 | M150-D-16 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W14 | OEM-A-12 | M150-C-19 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W15 | OEM-A-11 | M150-C-23 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W16 | OEM-A-25 | M150-C-20 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W17 | OEM-B-11 | M150-C-14 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W18 | OEM-B-4 | M150-D-3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W19 | OEM-B-2 | M150-D-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W20 | OEM-B-6 | M150-A-11 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W21 | OEM-B-3 | M150-D-4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W22 | OEM-D-9 | M150-D-2 | 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 |
|---|---|---|---|---|---|
| No supply/ground nets found to cross-check. | |||||
If any reading doesn't match, stop and get help before powering up.
Revisions
| Rev | Label | By | Date |
|---|---|---|---|
| No revisions yet. | |||
Schematic
Connectors
M150-A
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Analogue Temperature Input 5 | — | — | — | — | — | — | — | — |
| 10 | Sensor 5.0V C1 | — | — | — | — | — | — | — | — |
| 11 | Lambda Narrow Input 1 | — | W20 | — | 0.5 | OEM-B-6 | — | — | — |
| 12 | Lambda Narrow Input 2 | — | — | — | — | — | — | — | — |
| 13 | Knock Input 3 | — | — | — | — | — | — | — | — |
| 14 | Knock Input 4 | — | — | — | — | — | — | — | — |
| 15 | Digital Input 2 | — | — | — | — | — | — | — | — |
| 16 | Digital Input 3 | — | — | — | — | — | — | — | — |
| 17 | Digital Input 4 | — | — | — | — | — | — | — | — |
| 18 | Sensor 5.0V C2 | — | — | — | — | — | — | — | — |
| 19 | Sensor 5.0V B2 | — | — | — | — | — | — | — | — |
| 2 | Analogue Temperature Input 6 | — | — | — | — | — | — | — | — |
| 20 | LIN Bus | — | — | — | — | — | — | — | — |
| 21 | RS232 Receive | — | — | — | — | — | — | — | — |
| 22 | RS232 Transmit | — | — | — | — | — | — | — | — |
| 23 | Digital Input 1 | — | — | — | — | — | — | — | — |
| 24 | Battery Negative 3 | — | W2 | — | 0.85 | SP-GND-1 | — | — | — |
| 25 | Battery Negative 4 | — | W3 | — | 0.85 | SP-GND-1 | — | — | — |
| 26 | Sensor 0V C1 | — | W8 | — | 0.5 | SP-0V-1 | — | — | — |
| 27 | Sensor 0V C2 | — | W9 | — | 0.5 | SP-0V-1 | — | — | — |
| 28 | CAN Bus 3 High | — | — | — | — | — | — | — | — |
| 29 | CAN Bus 3 Low | — | — | — | — | — | — | — | — |
| 3 | Analogue Voltage Input 15 | — | — | — | — | — | — | — | — |
| 30 | CAN Bus 2 High | — | — | — | — | — | — | — | — |
| 31 | CAN Bus 2 Low | — | — | — | — | — | — | — | — |
| 32 | Battery Negative 5 | — | W4 | — | 0.85 | SP-GND-1 | — | — | — |
| 33 | Sensor 0V B1 | — | W10 | — | 0.5 | SP-0V-1 | — | — | — |
| 34 | Sensor 0V A1 | — | W11 | — | 0.5 | SP-0V-1 | — | — | — |
| 4 | Analogue Voltage Input 16 | — | — | — | — | — | — | — | — |
| 5 | Analogue Voltage Input 17 | — | — | — | — | — | — | — | — |
| 6 | Low Side Ignition 9 | — | — | — | — | — | — | — | — |
| 7 | Low Side Ignition 10 | — | — | — | — | — | — | — | — |
| 8 | Low Side Ignition 11 | — | — | — | — | — | — | — | — |
| 9 | Low Side Ignition 12 | — | — | — | — | — | — | — | — |
M150-B
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Half Bridge Output 9 | — | — | — | — | — | — | — | — |
| 10 | Analogue Voltage Input 9 | — | — | — | — | — | — | — | — |
| 11 | Analogue Voltage Input 10 | — | — | — | — | — | — | — | — |
| 12 | Analogue Voltage Input 11 | — | — | — | — | — | — | — | — |
| 13 | Battery Positive | — | — | — | — | — | — | — | — |
| 14 | Low Side Injector 6 | — | — | — | — | — | — | — | — |
| 15 | Low Side Injector 4 | — | — | — | — | — | — | — | — |
| 16 | Analogue Voltage Input 12 | — | — | — | — | — | — | — | — |
| 17 | Analogue Voltage Input 13 | — | — | — | — | — | — | — | — |
| 18 | Analogue Voltage Input 14 | — | — | — | — | — | — | — | — |
| 19 | Battery Positive | — | — | — | — | — | — | — | — |
| 2 | Half Bridge Output 10 | — | — | — | — | — | — | — | — |
| 20 | Half Bridge Output 7 | — | — | — | — | — | — | — | — |
| 21 | Half Bridge Output 8 | — | — | — | — | — | — | — | — |
| 22 | Peak Hold Injector 9 | — | — | — | — | — | — | — | — |
| 23 | Peak Hold Injector 10 | — | — | — | — | — | — | — | — |
| 24 | Peak Hold Injector 11 | — | — | — | — | — | — | — | — |
| 25 | Peak Hold Injector 12 | — | — | — | — | — | — | — | — |
| 26 | Sensor 5.0V A | — | — | — | — | — | — | — | — |
| 3 | Universal Digital Input 8 | — | — | — | — | — | — | — | — |
| 4 | Universal Digital Input 9 | — | — | — | — | — | — | — | — |
| 5 | Universal Digital Input 10 | — | — | — | — | — | — | — | — |
| 6 | Universal Digital Input 11 | — | — | — | — | — | — | — | — |
| 7 | Universal Digital Input 12 | — | — | — | — | — | — | — | — |
| 8 | Low Side Injector 5 | — | — | — | — | — | — | — | — |
| 9 | Low Side Injector 3 | — | — | — | — | — | — | — | — |
M150-C
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Half Bridge Output 2 | — | — | — | — | — | — | — | — |
| 10 | Battery Negative 1 | — | W5 | — | 0.85 | SP-GND-1 | — | — | — |
| 11 | Battery Negative 2 | — | W6 | — | 0.85 | SP-GND-1 | — | — | — |
| 12 | Low Side Ignition 7 | — | — | — | — | — | — | — | — |
| 13 | Low Side Ignition 8 | — | — | — | — | — | — | — | — |
| 14 | Analogue Voltage Input 1 | — | W17 | — | 0.5 | OEM-B-11 | — | — | — |
| 15 | Analogue Voltage Input 2 | — | — | — | — | — | — | — | — |
| 16 | Analogue Voltage Input 3 | — | — | — | — | — | — | — | — |
| 17 | Analogue Voltage Input 4 | — | — | — | — | — | — | — | — |
| 18 | Half Bridge Output 1 | — | — | — | — | — | — | — | — |
| 19 | Peak Hold Injector 1 | — | W14 | — | 0.5 | OEM-A-12 | — | — | — |
| 2 | Sensor 5.0V A | — | — | — | — | — | — | — | — |
| 20 | Peak Hold Injector 2 | — | W16 | — | 0.5 | OEM-A-25 | — | — | — |
| 21 | Peak Hold Injector 3 | — | — | — | — | — | — | — | — |
| 22 | Peak Hold Injector 4 | — | — | — | — | — | — | — | — |
| 23 | Low Side Injector 1 | — | W15 | — | 0.5 | OEM-A-11 | — | — | — |
| 24 | Low Side Injector 2 | — | — | — | — | — | — | — | — |
| 25 | Analogue Voltage Input 5 | — | — | — | — | — | — | — | — |
| 26 | Battery Positive | — | — | — | — | — | — | — | — |
| 27 | Peak Hold Injector 5 | — | — | — | — | — | — | — | — |
| 28 | Peak Hold Injector 6 | — | — | — | — | — | — | — | — |
| 29 | Peak Hold Injector 7 | — | — | — | — | — | — | — | — |
| 3 | Low Side Ignition 1 | — | — | — | — | — | — | — | — |
| 30 | Peak Hold Injector 8 | — | — | — | — | — | — | — | — |
| 31 | Half Bridge Output 3 | — | — | — | — | — | — | — | — |
| 32 | Half Bridge Output 4 | — | — | — | — | — | — | — | — |
| 33 | Half Bridge Output 5 | — | — | — | — | — | — | — | — |
| 34 | Half Bridge Output 6 | — | — | — | — | — | — | — | — |
| 4 | Low Side Ignition 2 | — | — | — | — | — | — | — | — |
| 5 | Low Side Ignition 3 | — | — | — | — | — | — | — | — |
| 6 | Low Side Ignition 4 | — | — | — | — | — | — | — | — |
| 7 | Low Side Ignition 5 | — | — | — | — | — | — | — | — |
| 8 | Low Side Ignition 6 | — | — | — | — | — | — | — | — |
| 9 | Sensor 5.0V B | — | — | — | — | — | — | — | — |
M150-D
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Universal Digital Input 1 | — | W19 | — | 0.5 | OEM-B-2 | — | — | — |
| 10 | Universal Digital Input 5 | — | — | — | — | — | — | — | — |
| 11 | Universal Digital Input 6 | — | — | — | — | — | — | — | — |
| 12 | Battery Backup | — | — | — | — | — | — | — | — |
| 13 | Knock Input 2 | — | — | — | — | — | — | — | — |
| 14 | Universal Digital Input 7 | — | — | — | — | — | — | — | — |
| 15 | Sensor 0V A | — | W12 | — | 0.5 | SP-0V-1 | — | — | — |
| 16 | Sensor 0V B | — | W13 | — | 0.5 | SP-0V-1 | — | — | — |
| 17 | CAN Bus 1 High | — | — | — | — | — | — | — | — |
| 18 | CAN Bus 1 Low | — | — | — | — | — | — | — | — |
| 19 | Sensor 6.3V | — | — | — | — | — | — | — | — |
| 2 | Universal Digital Input 2 | — | W22 | — | 0.5 | OEM-D-9 | — | — | — |
| 20 | Analogue Voltage Input 6 | — | — | — | — | — | — | — | — |
| 21 | Analogue Voltage Input 7 | — | — | — | — | — | — | — | — |
| 22 | Analogue Voltage Input 8 | — | — | — | — | — | — | — | — |
| 23 | Ethernet Transmit + | — | — | — | — | — | — | — | — |
| 24 | Ethernet Transmit - | — | — | — | — | — | — | — | — |
| 25 | Ethernet Receive + | — | — | — | — | — | — | — | — |
| 26 | Ethernet Receive - | — | — | — | — | — | — | — | — |
| 3 | Analogue Temperature Input 1 | — | W18 | — | 0.5 | OEM-B-4 | — | — | — |
| 4 | Analogue Temperature Input 2 | — | W21 | — | 0.5 | OEM-B-3 | — | — | — |
| 5 | Analogue Temperature Input 3 | — | — | — | — | — | — | — | — |
| 6 | Analogue Temperature Input 4 | — | — | — | — | — | — | — | — |
| 7 | Knock Input 1 | — | — | — | — | — | — | — | — |
| 8 | Universal Digital Input 3 | — | — | — | — | — | — | — | — |
| 9 | Universal Digital Input 4 | — | — | — | — | — | — | — | — |
OEM-A
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 11 | Injectors 2 & 6 (No.20) | — | W15 | — | 0.5 | M150-C-23 | — | — | — |
| 12 | Injectors 1 & 4 (No.10) | — | W14 | — | 0.5 | M150-C-19 | — | — | — |
| 25 | Injectors 3 & 5 (No.30) | — | W16 | — | 0.5 | M150-C-20 | — | — | — |
| 26 | Power ground (E01/E02) | — | W1 | — | 0.85 | SP-GND-1 | — | — | — |
OEM-B
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 11 | Throttle position sensor (VTA) | — | W17 | — | 0.5 | M150-C-14 | — | — | — |
| 2 | Karman-vortex AFM signal (KS) | — | W19 | — | 0.5 | M150-D-1 | — | — | — |
| 3 | Intake air temp (THA) | — | W21 | — | 0.5 | M150-D-4 | — | — | — |
| 4 | Coolant temp (THW) | — | W18 | — | 0.5 | M150-D-3 | — | — | — |
| 6 | Primary O2 sensor (OX1) | — | W20 | — | 0.5 | M150-A-11 | — | — | — |
| 9 | Sensor ground (E2) | — | W7 | — | 0.5 | SP-0V-1 | — | — | — |
OEM-D
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 9 | Vehicle speed sensor (SPD) | — | W22 | — | 0.5 | M150-D-2 | — | — | — |
SP-0V
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W7 | — | 0.5 | OEM-B-9 | — | — | — |
| 1 | — | — | W8 | — | 0.5 | M150-A-26 | — | — | — |
| 1 | — | — | W9 | — | 0.5 | M150-A-27 | — | — | — |
| 1 | — | — | W10 | — | 0.5 | M150-A-33 | — | — | — |
| 1 | — | — | W11 | — | 0.5 | M150-A-34 | — | — | — |
| 1 | — | — | W12 | — | 0.5 | M150-D-15 | — | — | — |
| 1 | — | — | W13 | — | 0.5 | M150-D-16 | — | — | — |
SP-GND
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W1 | — | 0.85 | OEM-A-26 | — | — | — |
| 1 | — | — | W2 | — | 0.85 | M150-A-24 | — | — | — |
| 1 | — | — | W3 | — | 0.85 | M150-A-25 | — | — | — |
| 1 | — | — | W4 | — | 0.85 | M150-A-32 | — | — | — |
| 1 | — | — | W5 | — | 0.85 | M150-C-10 | — | — | — |
| 1 | — | — | W6 | — | 0.85 | M150-C-11 | — | — | — |
Pin map
| OEM point | OEM function | OEM family | Target point | Target function | Target family | Wire colour | Evidence |
|---|---|---|---|---|---|---|---|
| OEM-A-11 | Injectors 2 & 6 (No.20) | injector_out | M150-C-23 | Low Side Injector 1 | injector_out | corroborated | |
| OEM-A-12 | Injectors 1 & 4 (No.10) | injector_out | M150-C-19 | Peak Hold Injector 1 | injector_out | corroborated | |
| OEM-A-25 | Injectors 3 & 5 (No.30) | injector_out | M150-C-20 | Peak Hold Injector 2 | injector_out | corroborated | |
| OEM-A-26 | Power ground (E01/E02) | ground | M150-A-24 + M150-A-25 + M150-A-32 + M150-C-10 + M150-C-11 | Battery Negative 3 + Battery Negative 4 + Battery Negative 5 + Battery Negative 1 + Battery Negative 2 | ground | corroborated | |
| OEM-B-11 | Throttle position sensor (VTA) | analog_in | M150-C-14 | Analogue Voltage Input 1 | analog_in | corroborated | |
| OEM-B-2 | Karman-vortex AFM signal (KS) | digital_in | M150-D-1 | Universal Digital Input 1 | digital_in | corroborated | |
| OEM-B-3 | Intake air temp (THA) | temp_in | M150-D-4 | Analogue Temperature Input 2 | temp_in | corroborated | |
| OEM-B-4 | Coolant temp (THW) | temp_in | M150-D-3 | Analogue Temperature Input 1 | temp_in | corroborated | |
| OEM-B-6 | Primary O2 sensor (OX1) | lambda_nb_in | M150-A-11 | Lambda Narrow Input 1 | lambda_nb_in | corroborated | |
| OEM-B-9 | Sensor ground (E2) | sensor_ground | M150-A-26 + M150-A-27 + M150-A-33 + M150-A-34 + M150-D-15 + M150-D-16 | Sensor 0V C1 + Sensor 0V C2 + Sensor 0V B1 + Sensor 0V A1 + Sensor 0V A + Sensor 0V B | sensor_ground | corroborated | |
| OEM-D-9 | Vehicle speed sensor (SPD) | digital_in | M150-D-2 | Universal Digital Input 2 | digital_in | corroborated |
Cut list
| Wire | From | To | Gauge (mm²) | Colour | Length | Signal | Ident |
|---|---|---|---|---|---|---|---|
| W1 | OEM-A-26 | SP-GND-1 | 0.85 | no route | Power ground (E01/E02) | — | |
| W2 | SP-GND-1 | M150-A-24 | 0.85 | no route | Battery Negative 3 | — | |
| W3 | SP-GND-1 | M150-A-25 | 0.85 | no route | Battery Negative 4 | — | |
| W4 | SP-GND-1 | M150-A-32 | 0.85 | no route | Battery Negative 5 | — | |
| W5 | SP-GND-1 | M150-C-10 | 0.85 | no route | Battery Negative 1 | — | |
| W6 | SP-GND-1 | M150-C-11 | 0.85 | no route | Battery Negative 2 | — | |
| W7 | OEM-B-9 | SP-0V-1 | 0.5 | no route | Sensor ground (E2) | — | |
| W8 | SP-0V-1 | M150-A-26 | 0.5 | no route | Sensor 0V C1 | — | |
| W9 | SP-0V-1 | M150-A-27 | 0.5 | no route | Sensor 0V C2 | — | |
| W10 | SP-0V-1 | M150-A-33 | 0.5 | no route | Sensor 0V B1 | — | |
| W11 | SP-0V-1 | M150-A-34 | 0.5 | no route | Sensor 0V A1 | — | |
| W12 | SP-0V-1 | M150-D-15 | 0.5 | no route | Sensor 0V A | — | |
| W13 | SP-0V-1 | M150-D-16 | 0.5 | no route | Sensor 0V B | — | |
| W14 | OEM-A-12 | M150-C-19 | 0.5 | no route | Injectors 1 & 4 (No.10) | — | |
| W15 | OEM-A-11 | M150-C-23 | 0.5 | no route | Injectors 2 & 6 (No.20) | — | |
| W16 | OEM-A-25 | M150-C-20 | 0.5 | no route | Injectors 3 & 5 (No.30) | — | |
| W17 | OEM-B-11 | M150-C-14 | 0.5 | no route | Throttle position sensor (VTA) | — | |
| W18 | OEM-B-4 | M150-D-3 | 0.5 | no route | Coolant temp (THW) | — | |
| W19 | OEM-B-2 | M150-D-1 | 0.5 | no route | Karman-vortex AFM signal (KS) | — | |
| W20 | OEM-B-6 | M150-A-11 | 0.5 | no route | Primary O2 sensor (OX1) | — | |
| W21 | OEM-B-3 | M150-D-4 | 0.5 | no route | Intake air temp (THA) | — | |
| W22 | OEM-D-9 | M150-D-2 | 0.5 | no route | Vehicle speed sensor (SPD) | — |
Bill of materials
| Category | Part number | Manufacturer | Description | Qty | Unit |
|---|
ECU setup sheet
| Role | Engine ref | Engine signal | Sensor | ECU point | ECU function | ECU class | Setup flag |
|---|---|---|---|---|---|---|---|
| No configured channels. | |||||||
Findings
Open (4)
| Severity | Code | Subject | Message |
|---|---|---|---|
| error | PHYS_REQUIRED_OPEN | M150-B-13 | M150-B-13 "Battery Positive" is required but not wired. |
| error | PHYS_REQUIRED_OPEN | M150-B-19 | M150-B-19 "Battery Positive" is required but not wired. |
| error | PHYS_REQUIRED_OPEN | M150-C-26 | M150-C-26 "Battery Positive" is required but not wired. |
| warn | NO_FUEL_PUMP | fuel pump | This engine harness has no fuel-pump control path: no fuel-pump relay output is wired to the new ECU. If the stock car switches the pump outside the ECU (an airflow-meter contact or a separate module), the standalone must drive the pump relay itself — see the install notes for this car. |
Accepted (0)
| Code | Subject | Reason | By |
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Notes
Fit check: unconfirmed. Confirm these before building: - Trigger pattern for Toyota 7M-GTE not found in the ECU's docs (no named 7M sync mode) Auto-mapped by auto_map() from the library pin data on 2026-10-11. Review every wire against both manuals before building. Open items: - Main-relay feed: no ecu_main_power pin on the stock or the new ECU - M150-B 13: Battery Positive: required by MoTeC M150 but no stock pin feeds it; wire by hand - M150-B 19: Battery Positive: required by MoTeC M150 but no stock pin feeds it; wire by hand - M150-C 26: Battery Positive: required by MoTeC M150 but no stock pin feeds it; wire by hand - Fuel-pump control: MoTeC M150 needs to drive the fuel pump, but the stock ECU has no fuel-pump output (an airflow-meter contact or a separate module runs it). Add a fuel-pump relay on a spare low-side output — see the install notes for this car.
Sources
| Reliability | Kind | Title | URL | Archive | Captured | SHA-256 |
|---|---|---|---|---|---|---|
| 4 | vendor_doc | MoTeC: M1 ECU Hardware manual (7 Nov 2013) — M130/M150/M170/M190 pinout tables | https://web.archive.org/web/2023id_/https://www.motec.com.au/hessian/uploads/M1_ECU_Hardware_c2517380e4.pdf | — | 2026-10-05 | 03dc5975f739 |
| 4 | vendor_doc | Toyota 7M-GTE EFI manual — "Terminals of ECU" (complete terminal list, no pin numbers) | http://shoarmateam.nl/upload/Toyota-Other/Cressida/MX83/efi%20system%20+%20WIRING/toyota-7m-manual-efi-fi%5b1%5d.pdf | — | — | — |
| 2 | forum | AllPinouts: 1989–1992 Toyota Supra ECU | https://allpinouts.org/pinouts/connectors/car/1989-1992-toyota-supra-ecu/ | — | — | — |