Toyota Supra A80 1993-98 USDM (2JZ-GTE, non-VVT) → DTAFast T8 (auto)
Toyota Supra A80 1993-98 USDM (2JZ-GTE, non-VVT) — DTAFast — T8
⚠ NOT CHECKED. Don't build from this.
Drawn by Michael Gnankou · Rev 0 · draft · 2026-10-09
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 | 57 wires · 8 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-E10-31 | SP-14V-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W2 | SP-14V-1 | T8-C1-31 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W3 | OEM-E10-33 | T8-C3-26 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W4 | OEM-E9-4 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W5 | OEM-E9-69 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W6 | OEM-E9-78 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W7 | OEM-E9-79 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W8 | OEM-E9-80 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W9 | SP-GND-1 | T8-C1-13 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W10 | SP-GND-1 | T8-C1-14 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W11 | OEM-E9-5 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W12 | OEM-E9-6 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W13 | OEM-E9-65 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W14 | OEM-E9-7 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W15 | SP-0V-1 | T8-C2-21 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W16 | SP-0V-1 | T8-C2-33 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W17 | OEM-E9-41 | T8-C2-24 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W18 | OEM-E9-27 | T8-C2-12 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W19 | OEM-E9-26 | T8-C2-22 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W20 | OEM-E9-25 | T8-C2-29 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W21 | OEM-E9-57 | T8-C1-10 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W22 | OEM-E9-56 | T8-C1-18 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W23 | OEM-E9-55 | T8-C1-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W24 | OEM-E9-54 | T8-C1-26 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W25 | OEM-E9-53 | T8-C1-11 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W26 | OEM-E9-52 | T8-C1-27 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W27 | OEM-E9-20 | T8-C1-9 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W28 | OEM-E9-19 | T8-C1-17 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W29 | OEM-E9-18 | T8-C1-34 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W30 | OEM-E9-17 | T8-C1-25 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W31 | OEM-E9-16 | T8-C1-16 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W32 | OEM-E9-15 | T8-C1-15 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W33 | OEM-E10-23 | T8-C1-5 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W34 | OEM-E10-24 | T8-C1-4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W35 | OEM-E9-71 | T8-C3-9 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W36 | OEM-E9-72 | T8-C3-3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W37 | OEM-E10-22 | T8-C1-3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W38 | OEM-E10-6 | T8-C3-22 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W39 | OEM-E9-32 | T8-C3-23 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W40 | OEM-E9-33 | T8-C3-24 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W41 | OEM-E9-34 | T8-C3-25 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W42 | OEM-E9-35 | T8-C3-10 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W43 | OEM-E9-60 | T8-C3-4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W44 | OEM-E9-73 | T8-C3-28 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W45 | OEM-E9-74 | T8-C1-24 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W46 | OEM-E9-62 | T8-C2-10 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W47 | OEM-E9-43 | T8-C2-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W48 | OEM-E9-47 | T8-C2-5 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W49 | OEM-E9-48 | T8-C2-6 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W50 | OEM-E9-44 | T8-C2-7 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W51 | OEM-E9-45 | T8-C2-25 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W52 | OEM-E10-2 | T8-C2-2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W53 | OEM-E10-21 | T8-C2-20 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W54 | OEM-E9-58 | T8-C2-31 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W55 | OEM-E10-15 | T8-C2-4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W56 | OEM-E10-4 | T8-C2-8 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W57 | OEM-E9-76 | T8-C2-11 | 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 | T8-C1-31 | T8-C1-13 | open (OL) | +12 V supply must not touch power ground | |
| 2 | T8-C1-31 | T8-C2-21 | open (OL) | +12 V supply must not touch sensor ground | |
| 3 | T8-C2-24 | T8-C2-21 | open (OL) | 5 V sensor reference must not touch sensor ground | |
| 4 | T8-C3-26 | T8-C1-13 | open (OL) | +12 V supply must not touch power ground | |
| 5 | T8-C3-26 | T8-C2-21 | open (OL) | +12 V supply must not touch sensor ground | |
| 6 | T8-C1-13 | T8-C2-24 | open (OL) | power ground must not touch 5 V sensor reference | |
| 7 | T8-C1-31 | T8-C2-24 | open (OL) | +12 V supply must not touch 5 V sensor reference | |
| 8 | T8-C3-26 | T8-C2-24 | 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
OEM-E10
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Ignition switch (IGSW) | — | — | — | — | — | — | — | — |
| 15 | Electrical load sensor (ELS) | — | W55 | — | 0.5 | T8-C2-4 | — | — | — |
| 16 | Tachometer output | — | — | — | — | — | — | — | — |
| 2 | Vehicle speed sensor (SP1) | — | W52 | — | 0.5 | T8-C2-2 | — | — | — |
| 21 | Fuel pump diagnostic (DI) | — | W53 | — | 0.5 | T8-C2-20 | — | — | — |
| 22 | Fuel pump control (FPC) | — | W37 | — | 0.5 | T8-C1-3 | — | — | — |
| 23 | A/C clutch relay (ACMG) | — | W33 | — | 0.5 | T8-C1-5 | — | — | — |
| 24 | Main relay control (M-REL) | — | W34 | — | 0.5 | T8-C1-4 | — | — | — |
| 31 | ECU power +B (main relay) | — | W1 | — | 0.85 | SP-14V-1 | — | — | — |
| 33 | Battery constant (BATT) | — | W3 | — | 0.85 | T8-C3-26 | — | — | — |
| 4 | Brake switch (STP) | — | W56 | — | 0.5 | T8-C2-8 | — | — | — |
| 6 | Malfunction indicator lamp (MIL) | — | W38 | — | 0.5 | T8-C3-22 | — | — | — |
OEM-E9
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 15 | Injector 6 | — | W32 | — | 0.5 | T8-C1-15 | — | — | — |
| 16 | Injector 5 | — | W31 | — | 0.5 | T8-C1-16 | — | — | — |
| 17 | Injector 4 | — | W30 | — | 0.5 | T8-C1-25 | — | — | — |
| 18 | Injector 3 | — | W29 | — | 0.5 | T8-C1-34 | — | — | — |
| 19 | Injector 2 | — | W28 | — | 0.5 | T8-C1-17 | — | — | — |
| 20 | Injector 1 | — | W27 | — | 0.5 | T8-C1-9 | — | — | — |
| 25 | Camshaft position 2 (G2) | — | W20 | — | 0.5 | T8-C2-29 | — | — | — |
| 26 | Camshaft position 1 (G1) | — | W19 | — | 0.5 | T8-C2-22 | — | — | — |
| 27 | Crank position (NE) | — | W18 | — | 0.5 | T8-C2-12 | — | — | — |
| 32 | ISC stepper winding | — | W39 | — | 0.5 | T8-C3-23 | — | — | — |
| 33 | ISC stepper winding | — | W40 | — | 0.5 | T8-C3-24 | — | — | — |
| 34 | ISC stepper winding | — | W41 | — | 0.5 | T8-C3-25 | — | — | — |
| 35 | ISC stepper winding | — | W42 | — | 0.5 | T8-C3-10 | — | — | — |
| 4 | Power ground (E11) | — | W4 | — | 0.85 | SP-GND-1 | — | — | — |
| 41 | Sensor supply +5V (VCC) | — | W17 | — | 0.5 | T8-C2-24 | — | — | — |
| 43 | Throttle position (VTA1) | — | W47 | — | 0.5 | T8-C2-1 | — | — | — |
| 44 | Coolant temperature (THW) | — | W50 | — | 0.5 | T8-C2-7 | — | — | — |
| 45 | Intake air temperature (THA) | — | W51 | — | 0.5 | T8-C2-25 | — | — | — |
| 47 | O2 sensor 2 (OX2) | — | W48 | — | 0.5 | T8-C2-5 | — | — | — |
| 48 | O2 sensor 1 (OX1) | — | W49 | — | 0.5 | T8-C2-6 | — | — | — |
| 49 | Knock sensor 2 (KNK2) | — | — | — | — | — | — | — | — |
| 5 | Cam sensor 2 ground (G2-) | — | W11 | — | 0.5 | SP-0V-1 | — | — | — |
| 50 | Knock sensor 1 (KNK1) | — | — | — | — | — | — | — | — |
| 52 | Ignition 6 (IGT6) | — | W26 | — | 0.5 | T8-C1-27 | — | — | — |
| 53 | Ignition 5 (IGT5) | — | W25 | — | 0.5 | T8-C1-11 | — | — | — |
| 54 | Ignition 4 (IGT4) | — | W24 | — | 0.5 | T8-C1-26 | — | — | — |
| 55 | Ignition 3 (IGT3) | — | W23 | — | 0.5 | T8-C1-1 | — | — | — |
| 56 | Ignition 2 (IGT2) | — | W22 | — | 0.5 | T8-C1-18 | — | — | — |
| 57 | Ignition 1 (IGT1) | — | W21 | — | 0.5 | T8-C1-10 | — | — | — |
| 58 | Ignition confirmation (IGF) | — | W54 | — | 0.5 | T8-C2-31 | — | — | — |
| 6 | Cam sensor 1 ground (G1-) | — | W12 | — | 0.5 | SP-0V-1 | — | — | — |
| 60 | Wastegate VSV (boost control) | — | W43 | — | 0.5 | T8-C3-4 | — | — | — |
| 62 | MAP sensor (PIM) | — | W46 | — | 0.5 | T8-C2-10 | — | — | — |
| 65 | Sensor ground (E2) | — | W13 | — | 0.5 | SP-0V-1 | — | — | — |
| 69 | ECU power ground (E1) | — | W5 | — | 0.85 | SP-GND-1 | — | — | — |
| 7 | Crank sensor ground (NE-) | — | W14 | — | 0.5 | SP-0V-1 | — | — | — |
| 71 | O2 heater 1 (HT1) | — | W35 | — | 0.5 | T8-C3-9 | — | — | — |
| 72 | O2 heater 2 (HT2) | — | W36 | — | 0.5 | T8-C3-3 | — | — | — |
| 73 | Fuel pressure-up VSV (FPU) | — | W44 | — | 0.5 | T8-C3-28 | — | — | — |
| 74 | Purge VSV (EVAP) | — | W45 | — | 0.5 | T8-C1-24 | — | — | — |
| 76 | Starter signal (STA) | — | W57 | — | 0.5 | T8-C2-11 | — | — | — |
| 78 | Power ground (E01) | — | W6 | — | 0.85 | SP-GND-1 | — | — | — |
| 79 | Power ground (E01/E02) | — | W7 | — | 0.85 | SP-GND-1 | — | — | — |
| 80 | Power ground (E01/E02) | — | W8 | — | 0.85 | SP-GND-1 | — | — | — |
SP-0V
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W11 | — | 0.5 | OEM-E9-5 | — | — | — |
| 1 | — | — | W12 | — | 0.5 | OEM-E9-6 | — | — | — |
| 1 | — | — | W13 | — | 0.5 | OEM-E9-65 | — | — | — |
| 1 | — | — | W14 | — | 0.5 | OEM-E9-7 | — | — | — |
| 1 | — | — | W15 | — | 0.5 | T8-C2-21 | — | — | — |
| 1 | — | — | W16 | — | 0.5 | T8-C2-33 | — | — | — |
SP-14V
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W1 | — | 0.85 | OEM-E10-31 | — | — | — |
| 1 | — | — | W2 | — | 0.85 | T8-C1-31 | — | — | — |
SP-GND
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W4 | — | 0.85 | OEM-E9-4 | — | — | — |
| 1 | — | — | W5 | — | 0.85 | OEM-E9-69 | — | — | — |
| 1 | — | — | W6 | — | 0.85 | OEM-E9-78 | — | — | — |
| 1 | — | — | W7 | — | 0.85 | OEM-E9-79 | — | — | — |
| 1 | — | — | W8 | — | 0.85 | OEM-E9-80 | — | — | — |
| 1 | — | — | W9 | — | 0.85 | T8-C1-13 | — | — | — |
| 1 | — | — | W10 | — | 0.85 | T8-C1-14 | — | — | — |
T8-C1
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Coil 3 | — | W23 | — | 0.5 | OEM-E9-55 | — | — | — |
| 10 | Coil 1 | — | W21 | — | 0.5 | OEM-E9-57 | — | — | — |
| 11 | Coil 5 | — | W25 | — | 0.5 | OEM-E9-53 | — | — | — |
| 12 | Coil 7 | — | — | — | — | — | — | — | — |
| 13 | Power Ground 1 | — | W9 | — | 0.85 | SP-GND-1 | — | — | — |
| 14 | Power Ground 2 | — | W10 | — | 0.85 | SP-GND-1 | — | — | — |
| 15 | Injector 6 | — | W32 | — | 0.5 | OEM-E9-15 | — | — | — |
| 16 | Injector 5 | — | W31 | — | 0.5 | OEM-E9-16 | — | — | — |
| 17 | Injector 2 | — | W28 | — | 0.5 | OEM-E9-19 | — | — | — |
| 18 | Coil 2 | — | W22 | — | 0.5 | OEM-E9-56 | — | — | — |
| 19 | Coil 8 | — | — | — | — | — | — | — | — |
| 23 | Injector 8 | — | — | — | — | — | — | — | — |
| 24 | Injector 7 | — | W45 | — | 0.5 | OEM-E9-74 | — | — | — |
| 25 | Injector 4 | — | W30 | — | 0.5 | OEM-E9-17 | — | — | — |
| 26 | Coil 4 | — | W24 | — | 0.5 | OEM-E9-54 | — | — | — |
| 27 | Coil 6 | — | W26 | — | 0.5 | OEM-E9-52 | — | — | — |
| 3 | PWM 3 | — | W37 | — | 0.5 | OEM-E10-22 | — | — | — |
| 31 | Ignition 12v In | — | W2 | — | 0.85 | SP-14V-1 | — | — | — |
| 34 | Injector 3 | — | W29 | — | 0.5 | OEM-E9-18 | — | — | — |
| 4 | PWM 2 | — | W34 | — | 0.5 | OEM-E10-24 | — | — | — |
| 5 | PWM 1 | — | W33 | — | 0.5 | OEM-E10-23 | — | — | — |
| 9 | Injector 1 | — | W27 | — | 0.5 | OEM-E9-20 | — | — | — |
T8-C2
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Analogue 2 | — | W47 | — | 0.5 | OEM-E9-43 | — | — | — |
| 10 | Analogue 1 | — | W46 | — | 0.5 | OEM-E9-62 | — | — | — |
| 11 | Digital 3 | — | W57 | — | 0.5 | OEM-E9-76 | — | — | — |
| 12 | Crank | — | W18 | — | 0.5 | OEM-E9-27 | — | — | — |
| 13 | Analogue 12 | — | — | — | — | — | — | — | — |
| 14 | Digital 4 | — | — | — | — | — | — | — | — |
| 15 | Digital 5 | — | — | — | — | — | — | — | — |
| 16 | Analogue 11 | — | — | — | — | — | — | — | — |
| 17 | Thermistor 3 | — | — | — | — | — | — | — | — |
| 18 | Analogue 5 | — | — | — | — | — | — | — | — |
| 19 | Analogue 6 | — | — | — | — | — | — | — | — |
| 2 | Wheel 1 | — | W52 | — | 0.5 | OEM-E10-2 | — | — | — |
| 20 | Wheel 2 | — | W53 | — | 0.5 | OEM-E10-21 | — | — | — |
| 21 | Sensor Ground | — | W15 | — | 0.5 | SP-0V-1 | — | — | — |
| 22 | Cam 1 | — | W19 | — | 0.5 | OEM-E9-26 | — | — | — |
| 24 | 5v Output | — | W17 | — | 0.5 | OEM-E9-41 | — | — | — |
| 25 | Thermistor 2 | — | W51 | — | 0.5 | OEM-E9-45 | — | — | — |
| 26 | CAN High | — | — | — | — | — | — | — | — |
| 27 | Digital 6 | — | — | — | — | — | — | — | — |
| 28 | CAN Low | — | — | — | — | — | — | — | — |
| 29 | Cam 2 | — | W20 | — | 0.5 | OEM-E9-25 | — | — | — |
| 3 | Analogue 10 | — | — | — | — | — | — | — | — |
| 31 | Wheel 3 | — | W54 | — | 0.5 | OEM-E9-58 | — | — | — |
| 32 | Wheel 4 | — | — | — | — | — | — | — | — |
| 33 | Sensor Ground | — | W16 | — | 0.5 | SP-0V-1 | — | — | — |
| 34 | Analogue 9 | — | — | — | — | — | — | — | — |
| 4 | Digital 1 | — | W55 | — | 0.5 | OEM-E10-15 | — | — | — |
| 5 | Analogue 3 | — | W48 | — | 0.5 | OEM-E9-47 | — | — | — |
| 6 | Analogue 4 | — | W49 | — | 0.5 | OEM-E9-48 | — | — | — |
| 7 | Thermistor 1 | — | W50 | — | 0.5 | OEM-E9-44 | — | — | — |
| 8 | Digital 2 | — | W56 | — | 0.5 | OEM-E10-4 | — | — | — |
| 9 | 5v Output | — | — | — | — | — | — | — | — |
T8-C3
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Lambda 2 Pump Current | — | — | — | — | — | — | — | — |
| 10 | PWM 8 | — | W42 | — | 0.5 | OEM-E9-35 | — | — | — |
| 11 | Lambda 1 Trim Resistor | — | — | — | — | — | — | — | — |
| 12 | Lambda 1 Nernst Voltage | — | — | — | — | — | — | — | — |
| 17 | Analogue 7 | — | — | — | — | — | — | — | — |
| 18 | Analogue 8 | — | — | — | — | — | — | — | — |
| 2 | Lambda 2 VGND | — | — | — | — | — | — | — | — |
| 22 | PWM 4 | — | W38 | — | 0.5 | OEM-E10-6 | — | — | — |
| 23 | PWM 5 | — | W39 | — | 0.5 | OEM-E9-32 | — | — | — |
| 24 | PWM 6 | — | W40 | — | 0.5 | OEM-E9-33 | — | — | — |
| 25 | PWM 7 | — | W41 | — | 0.5 | OEM-E9-34 | — | — | — |
| 26 | Permanent 12v | — | W3 | — | 0.85 | OEM-E10-33 | — | — | — |
| 27 | Permanent 12v | — | — | — | — | — | — | — | — |
| 28 | PWM 10 | — | W44 | — | 0.5 | OEM-E9-73 | — | — | — |
| 3 | Lambda 2 Heater Negative | — | W36 | — | 0.5 | OEM-E9-72 | — | — | — |
| 33 | CAN 2 High | — | — | — | — | — | — | — | — |
| 34 | CAN 2 Low | — | — | — | — | — | — | — | — |
| 4 | PWM 9 | — | W43 | — | 0.5 | OEM-E9-60 | — | — | — |
| 5 | Lambda 2 Trim Resistor | — | — | — | — | — | — | — | — |
| 6 | Lambda 2 Nernst Voltage | — | — | — | — | — | — | — | — |
| 7 | Lambda 1 Pump Current | — | — | — | — | — | — | — | — |
| 8 | Lambda 1 VGND | — | — | — | — | — | — | — | — |
| 9 | Lambda 1 Heater Negative | — | W35 | — | 0.5 | OEM-E9-71 | — | — | — |
Pin map
| OEM point | OEM function | OEM family | Target point | Target function | Target family | Wire colour | Evidence |
|---|---|---|---|---|---|---|---|
| OEM-E10-1 | Ignition switch (IGSW) | digital_in | — | — | — | corroborated | |
| OEM-E10-15 | Electrical load sensor (ELS) | digital_in | T8-C2-4 | Digital 1 | digital_in | single_source | |
| OEM-E10-16 | Tachometer output | tacho_out | — | — | — | corroborated | |
| OEM-E10-2 | Vehicle speed sensor (SP1) | digital_in | T8-C2-2 | Wheel 1 | digital_in | corroborated | |
| OEM-E10-21 | Fuel pump diagnostic (DI) | digital_in | T8-C2-20 | Wheel 2 | digital_in | single_source | |
| OEM-E10-22 | Fuel pump control (FPC) | low_side_out | T8-C1-3 | PWM 3 | low_side_out | corroborated | |
| OEM-E10-23 | A/C clutch relay (ACMG) | low_side_out | T8-C1-5 | PWM 1 | low_side_out | corroborated | |
| OEM-E10-24 | Main relay control (M-REL) | low_side_out | T8-C1-4 | PWM 2 | low_side_out | corroborated | |
| OEM-E10-31 | ECU power +B (main relay) | power_in | T8-C1-31 | Ignition 12v In | power_in | corroborated | |
| OEM-E10-33 | Battery constant (BATT) | power_in | T8-C3-26 | Permanent 12v | power_in | single_source | |
| OEM-E10-4 | Brake switch (STP) | digital_in | T8-C2-8 | Digital 2 | digital_in | single_source | |
| OEM-E10-6 | Malfunction indicator lamp (MIL) | low_side_out | T8-C3-22 | PWM 4 | low_side_out | corroborated | |
| OEM-E9-15 | Injector 6 | injector_out | T8-C1-15 | Injector 6 | injector_out | corroborated | |
| OEM-E9-16 | Injector 5 | injector_out | T8-C1-16 | Injector 5 | injector_out | corroborated | |
| OEM-E9-17 | Injector 4 | injector_out | T8-C1-25 | Injector 4 | injector_out | corroborated | |
| OEM-E9-18 | Injector 3 | injector_out | T8-C1-34 | Injector 3 | injector_out | corroborated | |
| OEM-E9-19 | Injector 2 | injector_out | T8-C1-17 | Injector 2 | injector_out | corroborated | |
| OEM-E9-20 | Injector 1 | injector_out | T8-C1-9 | Injector 1 | injector_out | corroborated | |
| OEM-E9-25 | Camshaft position 2 (G2) | trigger_in | T8-C2-29 | Cam 2 | trigger_in | corroborated | |
| OEM-E9-26 | Camshaft position 1 (G1) | trigger_in | T8-C2-22 | Cam 1 | trigger_in | corroborated | |
| OEM-E9-27 | Crank position (NE) | trigger_in | T8-C2-12 | Crank | trigger_in | corroborated | |
| OEM-E9-32 | ISC stepper winding | low_side_out | T8-C3-23 | PWM 5 | low_side_out | corroborated | |
| OEM-E9-33 | ISC stepper winding | low_side_out | T8-C3-24 | PWM 6 | low_side_out | corroborated | |
| OEM-E9-34 | ISC stepper winding | low_side_out | T8-C3-25 | PWM 7 | low_side_out | corroborated | |
| OEM-E9-35 | ISC stepper winding | low_side_out | T8-C3-10 | PWM 8 | low_side_out | corroborated | |
| OEM-E9-4 | Power ground (E11) | ground | T8-C1-13 + T8-C1-14 | Power Ground 1 + Power Ground 2 | ground | single_source | |
| OEM-E9-41 | Sensor supply +5V (VCC) | vref | T8-C2-24 | 5v Output | vref | corroborated | |
| OEM-E9-43 | Throttle position (VTA1) | analog_in | T8-C2-1 | Analogue 2 | analog_in | corroborated | |
| OEM-E9-44 | Coolant temperature (THW) | temp_in | T8-C2-7 | Thermistor 1 | temp_in | corroborated | |
| OEM-E9-45 | Intake air temperature (THA) | temp_in | T8-C2-25 | Thermistor 2 | temp_in | corroborated | |
| OEM-E9-47 | O2 sensor 2 (OX2) | lambda_nb_in | T8-C2-5 | Analogue 3 | analog_in | single_source | |
| OEM-E9-48 | O2 sensor 1 (OX1) | lambda_nb_in | T8-C2-6 | Analogue 4 | analog_in | corroborated | |
| OEM-E9-49 | Knock sensor 2 (KNK2) | knock_in | — | — | — | corroborated | |
| OEM-E9-5 | Cam sensor 2 ground (G2-) | sensor_ground | T8-C2-21 + T8-C2-33 | Sensor Ground + Sensor Ground | sensor_ground | corroborated | |
| OEM-E9-50 | Knock sensor 1 (KNK1) | knock_in | — | — | — | corroborated | |
| OEM-E9-52 | Ignition 6 (IGT6) | ignition_out | T8-C1-27 | Coil 6 | ignition_out | corroborated | |
| OEM-E9-53 | Ignition 5 (IGT5) | ignition_out | T8-C1-11 | Coil 5 | ignition_out | corroborated | |
| OEM-E9-54 | Ignition 4 (IGT4) | ignition_out | T8-C1-26 | Coil 4 | ignition_out | corroborated | |
| OEM-E9-55 | Ignition 3 (IGT3) | ignition_out | T8-C1-1 | Coil 3 | ignition_out | corroborated | |
| OEM-E9-56 | Ignition 2 (IGT2) | ignition_out | T8-C1-18 | Coil 2 | ignition_out | corroborated | |
| OEM-E9-57 | Ignition 1 (IGT1) | ignition_out | T8-C1-10 | Coil 1 | ignition_out | corroborated | |
| OEM-E9-58 | Ignition confirmation (IGF) | digital_in | T8-C2-31 | Wheel 3 | digital_in | single_source | |
| OEM-E9-6 | Cam sensor 1 ground (G1-) | sensor_ground | T8-C2-21 + T8-C2-33 | Sensor Ground + Sensor Ground | sensor_ground | corroborated | |
| OEM-E9-60 | Wastegate VSV (boost control) | low_side_out | T8-C3-4 | PWM 9 | low_side_out | single_source | |
| OEM-E9-62 | MAP sensor (PIM) | analog_in | T8-C2-10 | Analogue 1 | analog_in | single_source | |
| OEM-E9-65 | Sensor ground (E2) | sensor_ground | T8-C2-21 + T8-C2-33 | Sensor Ground + Sensor Ground | sensor_ground | corroborated | |
| OEM-E9-69 | ECU power ground (E1) | ground | T8-C1-13 + T8-C1-14 | Power Ground 1 + Power Ground 2 | ground | corroborated | |
| OEM-E9-7 | Crank sensor ground (NE-) | sensor_ground | T8-C2-21 + T8-C2-33 | Sensor Ground + Sensor Ground | sensor_ground | corroborated | |
| OEM-E9-71 | O2 heater 1 (HT1) | low_side_out | T8-C3-9 | Lambda 1 Heater Negative | low_side_out | single_source | |
| OEM-E9-72 | O2 heater 2 (HT2) | low_side_out | T8-C3-3 | Lambda 2 Heater Negative | low_side_out | single_source | |
| OEM-E9-73 | Fuel pressure-up VSV (FPU) | low_side_out | T8-C3-28 | PWM 10 | low_side_out | single_source | |
| OEM-E9-74 | Purge VSV (EVAP) | low_side_out | T8-C1-24 | Injector 7 | injector_out | single_source | |
| OEM-E9-76 | Starter signal (STA) | digital_in | T8-C2-11 | Digital 3 | digital_in | single_source | |
| OEM-E9-78 | Power ground (E01) | ground | T8-C1-13 + T8-C1-14 | Power Ground 1 + Power Ground 2 | ground | single_source | |
| OEM-E9-79 | Power ground (E01/E02) | ground | T8-C1-13 + T8-C1-14 | Power Ground 1 + Power Ground 2 | ground | corroborated | |
| OEM-E9-80 | Power ground (E01/E02) | ground | T8-C1-13 + T8-C1-14 | Power Ground 1 + Power Ground 2 | ground | corroborated |
Cut list
| Wire | From | To | Gauge (mm²) | Colour | Length | Signal | Ident |
|---|---|---|---|---|---|---|---|
| W1 | OEM-E10-31 | SP-14V-1 | 0.85 | no route | ECU power +B (main relay) | — | |
| W2 | SP-14V-1 | T8-C1-31 | 0.85 | no route | Ignition 12v In | — | |
| W3 | OEM-E10-33 | T8-C3-26 | 0.85 | no route | Battery constant (BATT) | — | |
| W4 | OEM-E9-4 | SP-GND-1 | 0.85 | no route | Power ground (E11) | — | |
| W5 | OEM-E9-69 | SP-GND-1 | 0.85 | no route | ECU power ground (E1) | — | |
| W6 | OEM-E9-78 | SP-GND-1 | 0.85 | no route | Power ground (E01) | — | |
| W7 | OEM-E9-79 | SP-GND-1 | 0.85 | no route | Power ground (E01/E02) | — | |
| W8 | OEM-E9-80 | SP-GND-1 | 0.85 | no route | Power ground (E01/E02) | — | |
| W9 | SP-GND-1 | T8-C1-13 | 0.85 | no route | Power Ground 1 | — | |
| W10 | SP-GND-1 | T8-C1-14 | 0.85 | no route | Power Ground 2 | — | |
| W11 | OEM-E9-5 | SP-0V-1 | 0.5 | no route | Cam sensor 2 ground (G2-) | — | |
| W12 | OEM-E9-6 | SP-0V-1 | 0.5 | no route | Cam sensor 1 ground (G1-) | — | |
| W13 | OEM-E9-65 | SP-0V-1 | 0.5 | no route | Sensor ground (E2) | — | |
| W14 | OEM-E9-7 | SP-0V-1 | 0.5 | no route | Crank sensor ground (NE-) | — | |
| W15 | SP-0V-1 | T8-C2-21 | 0.5 | no route | Sensor Ground | — | |
| W16 | SP-0V-1 | T8-C2-33 | 0.5 | no route | Sensor Ground | — | |
| W17 | OEM-E9-41 | T8-C2-24 | 0.5 | no route | Sensor supply +5V (VCC) | — | |
| W18 | OEM-E9-27 | T8-C2-12 | 0.5 | no route | Crank position (NE) | — | |
| W19 | OEM-E9-26 | T8-C2-22 | 0.5 | no route | Camshaft position 1 (G1) | — | |
| W20 | OEM-E9-25 | T8-C2-29 | 0.5 | no route | Camshaft position 2 (G2) | — | |
| W21 | OEM-E9-57 | T8-C1-10 | 0.5 | no route | Ignition 1 (IGT1) | — | |
| W22 | OEM-E9-56 | T8-C1-18 | 0.5 | no route | Ignition 2 (IGT2) | — | |
| W23 | OEM-E9-55 | T8-C1-1 | 0.5 | no route | Ignition 3 (IGT3) | — | |
| W24 | OEM-E9-54 | T8-C1-26 | 0.5 | no route | Ignition 4 (IGT4) | — | |
| W25 | OEM-E9-53 | T8-C1-11 | 0.5 | no route | Ignition 5 (IGT5) | — | |
| W26 | OEM-E9-52 | T8-C1-27 | 0.5 | no route | Ignition 6 (IGT6) | — | |
| W27 | OEM-E9-20 | T8-C1-9 | 0.5 | no route | Injector 1 | — | |
| W28 | OEM-E9-19 | T8-C1-17 | 0.5 | no route | Injector 2 | — | |
| W29 | OEM-E9-18 | T8-C1-34 | 0.5 | no route | Injector 3 | — | |
| W30 | OEM-E9-17 | T8-C1-25 | 0.5 | no route | Injector 4 | — | |
| W31 | OEM-E9-16 | T8-C1-16 | 0.5 | no route | Injector 5 | — | |
| W32 | OEM-E9-15 | T8-C1-15 | 0.5 | no route | Injector 6 | — | |
| W33 | OEM-E10-23 | T8-C1-5 | 0.5 | no route | A/C clutch relay (ACMG) | — | |
| W34 | OEM-E10-24 | T8-C1-4 | 0.5 | no route | Main relay control (M-REL) | — | |
| W35 | OEM-E9-71 | T8-C3-9 | 0.5 | no route | O2 heater 1 (HT1) | — | |
| W36 | OEM-E9-72 | T8-C3-3 | 0.5 | no route | O2 heater 2 (HT2) | — | |
| W37 | OEM-E10-22 | T8-C1-3 | 0.5 | no route | Fuel pump control (FPC) | — | |
| W38 | OEM-E10-6 | T8-C3-22 | 0.5 | no route | Malfunction indicator lamp (MIL) | — | |
| W39 | OEM-E9-32 | T8-C3-23 | 0.5 | no route | ISC stepper winding | — | |
| W40 | OEM-E9-33 | T8-C3-24 | 0.5 | no route | ISC stepper winding | — | |
| W41 | OEM-E9-34 | T8-C3-25 | 0.5 | no route | ISC stepper winding | — | |
| W42 | OEM-E9-35 | T8-C3-10 | 0.5 | no route | ISC stepper winding | — | |
| W43 | OEM-E9-60 | T8-C3-4 | 0.5 | no route | Wastegate VSV (boost control) | — | |
| W44 | OEM-E9-73 | T8-C3-28 | 0.5 | no route | Fuel pressure-up VSV (FPU) | — | |
| W45 | OEM-E9-74 | T8-C1-24 | 0.5 | no route | Purge VSV (EVAP) | — | |
| W46 | OEM-E9-62 | T8-C2-10 | 0.5 | no route | MAP sensor (PIM) | — | |
| W47 | OEM-E9-43 | T8-C2-1 | 0.5 | no route | Throttle position (VTA1) | — | |
| W48 | OEM-E9-47 | T8-C2-5 | 0.5 | no route | O2 sensor 2 (OX2) | — | |
| W49 | OEM-E9-48 | T8-C2-6 | 0.5 | no route | O2 sensor 1 (OX1) | — | |
| W50 | OEM-E9-44 | T8-C2-7 | 0.5 | no route | Coolant temperature (THW) | — | |
| W51 | OEM-E9-45 | T8-C2-25 | 0.5 | no route | Intake air temperature (THA) | — | |
| W52 | OEM-E10-2 | T8-C2-2 | 0.5 | no route | Vehicle speed sensor (SP1) | — | |
| W53 | OEM-E10-21 | T8-C2-20 | 0.5 | no route | Fuel pump diagnostic (DI) | — | |
| W54 | OEM-E9-58 | T8-C2-31 | 0.5 | no route | Ignition confirmation (IGF) | — | |
| W55 | OEM-E10-15 | T8-C2-4 | 0.5 | no route | Electrical load sensor (ELS) | — | |
| W56 | OEM-E10-4 | T8-C2-8 | 0.5 | no route | Brake switch (STP) | — | |
| W57 | OEM-E9-76 | T8-C2-11 | 0.5 | no route | Starter signal (STA) | — |
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 (3)
| Severity | Code | Subject | Message |
|---|---|---|---|
| error | PHYS_REQUIRED_OPEN | T8-C3-27 | T8-C3-27 "Permanent 12v" is required but not wired. |
| info | NET_FAMILY | OEM-E9-74 ↔ T8-C1-24 | OEM-E9-74 "Purge VSV (EVAP)" [low_side_out] is wired to T8-C1-24 "Injector 7" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | UNMAPPED | OEM | 4 optional OEM pins are not mapped: OEM-E10-1 Ignition switch (IGSW); OEM-E10-16 Tachometer output; OEM-E9-49 Knock sensor 2 (KNK2); OEM-E9-50 Knock sensor 1 (KNK1) |
Accepted (0)
| Code | Subject | Reason | By |
|---|
Notes
Auto-mapped by auto_map() from the library pin data on 2026-10-09. Review every wire against both manuals before building. Open items: - T8-C3 27: Permanent 12v: required by DTAFast T8 but no stock pin feeds it; wire by hand Not wired: - OEM-E9 50: Knock sensor 1 (KNK1): no free knock input on DTAFast T8 - OEM-E9 49: Knock sensor 2 (KNK2): no free knock input on DTAFast T8 - OEM-E10 1: Ignition switch (IGSW): key-on 12 V sense — optional in a swap (the main relay is energized from keyed 12 V, not from this pin); DTAFast T8 has no dedicated key-on input - OEM-E10 16: Tachometer output: no free tacho/frequency_out/low_side/ls_hs on DTAFast T8
Sources
| Reliability | Kind | Title | URL | Archive | Captured | SHA-256 |
|---|---|---|---|---|---|---|
| 4 | vendor_doc | DTAFast T8 ECU wiring diagram | https://cdn.shopify.com/s/files/1/0848/7508/4108/files/T8_Wiring-Diagram.pdf?v=1728571343 | — | — | — |
| 4 | vendor_doc | ECUMASTER: ECU2JZ JZA80 2JZ-GTE adapter technical information (knock sensor count) | https://drive.google.com/file/d/15sTEetwLt0aKjuQo6aXODn4EBAkEJrtN/view | archive | 2026-10-05 | 6a4adabba0f5 |
| 4 | vendor_doc | Link SupraLink TS2JZX install manual (JZA80 2JZ-GTE non-VVT) | https://linkecu.com/documentation/TS2JZX.pdf | — | — | — |
| 4 | service_manual | Toyota FSM P1300 Igniter Circuit (2JZ-GTE) — IGT1-6 / IGF ECM terminals | http://97supraturbo.com/Trouble%20Codes/P1300%20Ignitor.pdf | — | — | — |