Toyota Supra A80 1993-98 USDM (2JZ-GE, non-VVT) → Speeduino Speeduino v0.4 (auto)
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 | 5: read the Findings page before cutting any wire |
| Size of the job | 34 wires · 5 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-E9-4 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W2 | OEM-E9-69 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W3 | OEM-E9-79 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W4 | OEM-E9-80 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W5 | SP-GND-1 | SPEEDUINO-A-10 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W6 | SP-GND-1 | SPEEDUINO-A-9 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W7 | OEM-E9-65 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W8 | OEM-E9-7 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W9 | SP-0V-1 | SPEEDUINO-A-12 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W10 | SP-0V-1 | SPEEDUINO-A-23 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W11 | OEM-E9-41 | SPEEDUINO-A-13 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W12 | OEM-E9-27 | SPEEDUINO-A-25 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W13 | OEM-E9-26 | SPEEDUINO-A-24 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W14 | OEM-E9-25 | SPEEDUINO-A-26 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W15 | OEM-E9-57 | SPEEDUINO-A-7 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W16 | OEM-E9-20 | SPEEDUINO-A-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W17 | OEM-E9-19 | SPEEDUINO-A-2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W18 | OEM-E9-18 | SPEEDUINO-A-3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W19 | OEM-E9-17 | SPEEDUINO-A-5 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W20 | OEM-E9-16 | SPEEDUINO-A-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W21 | OEM-E9-15 | SPEEDUINO-A-2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W22 | OEM-E9-62 | SPEEDUINO-A-11 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W23 | OEM-E9-43 | SPEEDUINO-A-22 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W24 | OEM-E9-44 | SPEEDUINO-A-19 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W25 | OEM-E10-23 | SPEEDUINO-A-16 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W26 | OEM-E10-24 | SPEEDUINO-A-15 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W27 | OEM-E9-10 | SPEEDUINO-A-36 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W28 | OEM-E9-35 | SPEEDUINO-A-35 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W29 | OEM-E9-34 | SPEEDUINO-A-37 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W30 | OEM-E9-9 | SPEEDUINO-A-38 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W31 | OEM-E9-47 | SPEEDUINO-A-21 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W32 | OEM-E10-29 | SPEEDUINO-A-20 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W33 | OEM-E10-2 | SPEEDUINO-A-14 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W34 | OEM-E9-23 | SPEEDUINO-A-18 | 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 | SPEEDUINO-A-13 | SPEEDUINO-A-12 | open (OL) | 5 V sensor reference must not touch sensor ground | |
| 2 | SPEEDUINO-A-10 | SPEEDUINO-A-13 | open (OL) | power ground 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) | — | — | — | — | — | — | — | — |
| 10 | A/T low-gear indicator (L) | — | — | — | — | — | — | — | — |
| 12 | A/T overdrive disable 1 (OD1) | — | — | — | — | — | — | — | — |
| 15 | Electrical load sense (ELS) | — | — | — | — | — | — | — | — |
| 17 | Diagnostic test terminal (TT) | — | — | — | — | — | — | — | — |
| 18 | A/T manual mode select (M) | — | — | — | — | — | — | — | — |
| 19 | Diagnostic test 2 (TE2) | — | — | — | — | — | — | — | — |
| 2 | No.1 speed sensor (SP1) | — | W33 | — | 0.5 | SPEEDUINO-A-14 | — | — | — |
| 20 | Diagnostic test 1 (TE1) | — | — | — | — | — | — | — | — |
| 21 | Fuel pump diagnostic (DI) | — | — | — | — | — | — | — | — |
| 22 | Fuel pump control (FPC) | — | — | — | — | — | — | — | — |
| 23 | A/C clutch relay (ACMG) | — | W25 | — | 0.5 | SPEEDUINO-A-16 | — | — | — |
| 24 | EFI main relay control (M-REL) | — | W26 | — | 0.5 | SPEEDUINO-A-15 | — | — | — |
| 25 | A/T manual indicator (MI) | — | — | — | — | — | — | — | — |
| 28 | A/T overdrive disable 2 (OD2) | — | — | — | — | — | — | — | — |
| 29 | Cat temperature sensor (CCO) | — | W32 | — | 0.5 | SPEEDUINO-A-20 | — | — | — |
| 3 | A/T kickdown switch (KD) | — | — | — | — | — | — | — | — |
| 31 | EFI main relay power (+B) | — | — | — | — | — | — | — | — |
| 32 | EFI main relay power (+B1) | — | — | — | — | — | — | — | — |
| 33 | Battery constant (BATT) | — | — | — | — | — | — | — | — |
| 34 | A/C request (A/C) | — | — | — | — | — | — | — | — |
| 35 | Power steering switch (PS) | — | — | — | — | — | — | — | — |
| 4 | Stop light switch (STP) | — | — | — | — | — | — | — | — |
| 5 | Cat-temp warning light (EGW) | — | — | — | — | — | — | — | — |
| 6 | Check-engine light (W) | — | — | — | — | — | — | — | — |
| 9 | A/T 2nd-gear indicator (2) | — | — | — | — | — | — | — | — |
OEM-E9
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 10 | A/T shift solenoid 1 (S1) | — | W27 | — | 0.5 | SPEEDUINO-A-36 | — | — | — |
| 15 | Injector 6 (#60, rear) | — | W21 | — | 0.5 | SPEEDUINO-A-2 | — | — | — |
| 16 | Injector 5 (#50) | — | W20 | — | 0.5 | SPEEDUINO-A-1 | — | — | — |
| 17 | Injector 4 (#40) | — | W19 | — | 0.5 | SPEEDUINO-A-5 | — | — | — |
| 18 | Injector 3 (#30) | — | W18 | — | 0.5 | SPEEDUINO-A-3 | — | — | — |
| 19 | Injector 2 (#20) | — | W17 | — | 0.5 | SPEEDUINO-A-2 | — | — | — |
| 20 | Injector 1 (#10, front) | — | W16 | — | 0.5 | SPEEDUINO-A-1 | — | — | — |
| 23 | No.2 speed sensor (SP2+) | — | W34 | — | 0.5 | SPEEDUINO-A-18 | — | — | — |
| 24 | A/T oil temperature (OIL) | — | — | — | — | — | — | — | — |
| 25 | Cam position 2 (G2) | — | W14 | — | 0.5 | SPEEDUINO-A-26 | — | — | — |
| 26 | Cam position 1 (G1) | — | W13 | — | 0.5 | SPEEDUINO-A-24 | — | — | — |
| 27 | Crank position (NE) | — | W12 | — | 0.5 | SPEEDUINO-A-25 | — | — | — |
| 28 | Voltage feedback 2 (VF2) | — | — | — | — | — | — | — | — |
| 29 | Voltage feedback 1 (VF1) | — | — | — | — | — | — | — | — |
| 3 | No.2 speed sensor return (SP2-) | — | — | — | — | — | — | — | — |
| 32 | ISC stepper coil 4 (ISC4) | — | — | — | — | — | — | — | — |
| 33 | ISC stepper coil 3 (ISC3) | — | — | — | — | — | — | — | — |
| 34 | ISC stepper coil 2 (ISC2) | — | W29 | — | 0.5 | SPEEDUINO-A-37 | — | — | — |
| 35 | ISC stepper coil 1 (ISC1) | — | W28 | — | 0.5 | SPEEDUINO-A-35 | — | — | — |
| 39 | ACIS intake VSV | — | — | — | — | — | — | — | — |
| 4 | Power ground (E11) | — | W1 | — | 0.85 | SP-GND-1 | — | — | — |
| 41 | Sensor supply +5V (VCC) | — | W11 | — | 0.5 | SPEEDUINO-A-13 | — | — | — |
| 43 | Throttle position (VTA1) | — | W23 | — | 0.5 | SPEEDUINO-A-22 | — | — | — |
| 44 | Coolant temperature (THW) | — | W24 | — | 0.5 | SPEEDUINO-A-19 | — | — | — |
| 45 | Intake air temperature (THA) | — | — | — | — | — | — | — | — |
| 47 | O2 sensor 2 (OX2, rear bank) | — | W31 | — | 0.5 | SPEEDUINO-A-21 | — | — | — |
| 48 | O2 sensor 1 (OX1, front bank) | — | — | — | — | — | — | — | — |
| 49 | Knock sensor 2 (KNK2, rear) | — | — | — | — | — | — | — | — |
| 50 | Knock sensor 1 (KNK1, front) | — | — | — | — | — | — | — | — |
| 57 | Igniter trigger (IGT) | — | W15 | — | 0.5 | SPEEDUINO-A-7 | — | — | — |
| 58 | Igniter verification (IGF) | — | — | — | — | — | — | — | — |
| 62 | Manifold pressure (PIM) | — | W22 | — | 0.5 | SPEEDUINO-A-11 | — | — | — |
| 64 | TPS idle switch (IDL1) | — | — | — | — | — | — | — | — |
| 65 | Sensor ground (E2) | — | W7 | — | 0.5 | SP-0V-1 | — | — | — |
| 69 | Power ground (E1) | — | W2 | — | 0.85 | SP-GND-1 | — | — | — |
| 7 | Distributor ground (G-) | — | W8 | — | 0.5 | SP-0V-1 | — | — | — |
| 74 | EVAP purge VSV | — | — | — | — | — | — | — | — |
| 76 | Neutral/park switch (NSW) | — | — | — | — | — | — | — | — |
| 77 | Starter signal (STA) | — | — | — | — | — | — | — | — |
| 79 | Power ground (E02) | — | W3 | — | 0.85 | SP-GND-1 | — | — | — |
| 8 | A/T lock-up solenoid (S3) | — | — | — | — | — | — | — | — |
| 80 | Power ground (E01) | — | W4 | — | 0.85 | SP-GND-1 | — | — | — |
| 9 | A/T shift solenoid 2 (S2) | — | W30 | — | 0.5 | SPEEDUINO-A-38 | — | — | — |
SP-0V
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W7 | — | 0.5 | OEM-E9-65 | — | — | — |
| 1 | — | — | W8 | — | 0.5 | OEM-E9-7 | — | — | — |
| 1 | — | — | W9 | — | 0.5 | SPEEDUINO-A-12 | — | — | — |
| 1 | — | — | W10 | — | 0.5 | SPEEDUINO-A-23 | — | — | — |
SP-GND
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W1 | — | 0.85 | OEM-E9-4 | — | — | — |
| 1 | — | — | W2 | — | 0.85 | OEM-E9-69 | — | — | — |
| 1 | — | — | W3 | — | 0.85 | OEM-E9-79 | — | — | — |
| 1 | — | — | W4 | — | 0.85 | OEM-E9-80 | — | — | — |
| 1 | — | — | W5 | — | 0.85 | SPEEDUINO-A-10 | — | — | — |
| 1 | — | — | W6 | — | 0.85 | SPEEDUINO-A-9 | — | — | — |
SPEEDUINO-A
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Injector 1 | — | W16 | — | 0.5 | OEM-E9-20 | — | — | — |
| 1 | Injector 1 | — | W20 | — | 0.5 | OEM-E9-16 | — | — | — |
| 10 | Ground | — | W5 | — | 0.85 | SP-GND-1 | — | — | — |
| 11 | MAP sensor (0-5V) | — | W22 | — | 0.5 | OEM-E9-62 | — | — | — |
| 12 | Ground | — | W9 | — | 0.5 | SP-0V-1 | — | — | — |
| 13 | 5V | — | W11 | — | 0.5 | OEM-E9-41 | — | — | — |
| 14 | Proto area 1 (flex fuel) | — | W33 | — | 0.5 | OEM-E10-2 | — | — | — |
| 15 | Proto area 2 (fan) | — | W26 | — | 0.5 | OEM-E10-24 | — | — | — |
| 16 | Proto area 3 (fuel pump) | — | W25 | — | 0.5 | OEM-E10-23 | — | — | — |
| 17 | Proto area 4 (tachometer) | — | — | — | — | — | — | — | — |
| 18 | Proto area 5 (clutch) | — | W34 | — | 0.5 | OEM-E9-23 | — | — | — |
| 19 | Coolant temp (CLT) | — | W24 | — | 0.5 | OEM-E9-44 | — | — | — |
| 2 | Injector 2 | — | W17 | — | 0.5 | OEM-E9-19 | — | — | — |
| 2 | Injector 2 | — | W21 | — | 0.5 | OEM-E9-15 | — | — | — |
| 20 | Inlet air temp (IAT) | — | W32 | — | 0.5 | OEM-E10-29 | — | — | — |
| 21 | O2 sensor | — | W31 | — | 0.5 | OEM-E9-47 | — | — | — |
| 22 | TPS input | — | W23 | — | 0.5 | OEM-E9-43 | — | — | — |
| 23 | Ground | — | W10 | — | 0.5 | SP-0V-1 | — | — | — |
| 24 | Cam input / VR2+ | — | W13 | — | 0.5 | OEM-E9-26 | — | — | — |
| 25 | Crank input / VR1+ | — | W12 | — | 0.5 | OEM-E9-27 | — | — | — |
| 26 | VR2- | — | W14 | — | 0.5 | OEM-E9-25 | — | — | — |
| 27 | VR1- | — | — | — | — | — | — | — | — |
| 28 | 5V | — | — | — | — | — | — | — | — |
| 29 | Idle stepper 2B | — | — | — | — | — | — | — | — |
| 3 | Injector 3 | — | W18 | — | 0.5 | OEM-E9-18 | — | — | — |
| 30 | Idle stepper 2A | — | — | — | — | — | — | — | — |
| 31 | Idle stepper 1A | — | — | — | — | — | — | — | — |
| 32 | Idle stepper 1B | — | — | — | — | — | — | — | — |
| 33 | Ignition 3 | — | — | — | — | — | — | — | — |
| 34 | Ignition 2 | — | — | — | — | — | — | — | — |
| 35 | Boost | — | W28 | — | 0.5 | OEM-E9-35 | — | — | — |
| 36 | Idle 2 (3-wire idle) | — | W27 | — | 0.5 | OEM-E9-10 | — | — | — |
| 37 | PWM idle | — | W29 | — | 0.5 | OEM-E9-34 | — | — | — |
| 38 | VVT | — | W30 | — | 0.5 | OEM-E9-9 | — | — | — |
| 5 | Injector 4 | — | W19 | — | 0.5 | OEM-E9-17 | — | — | — |
| 7 | Ignition 1 | — | W15 | — | 0.5 | OEM-E9-57 | — | — | — |
| 8 | Ignition 4 | — | — | — | — | — | — | — | — |
| 9 | Ground | — | W6 | — | 0.85 | SP-GND-1 | — | — | — |
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 | — | — | — | single_source | |
| OEM-E10-10 | A/T low-gear indicator (L) | digital_in | — | — | — | single_source | |
| OEM-E10-12 | A/T overdrive disable 1 (OD1) | digital_in | — | — | — | single_source | |
| OEM-E10-15 | Electrical load sense (ELS) | digital_in | — | — | — | single_source | |
| OEM-E10-17 | Diagnostic test terminal (TT) | digital_in | — | — | — | single_source | |
| OEM-E10-18 | A/T manual mode select (M) | digital_in | — | — | — | single_source | |
| OEM-E10-19 | Diagnostic test 2 (TE2) | digital_in | — | — | — | single_source | |
| OEM-E10-2 | No.1 speed sensor (SP1) | digital_in | SPEEDUINO-A-14 | Proto area 1 (flex fuel) | digital_in | single_source | |
| OEM-E10-20 | Diagnostic test 1 (TE1) | digital_in | — | — | — | single_source | |
| OEM-E10-21 | Fuel pump diagnostic (DI) | digital_in | — | — | — | single_source | |
| OEM-E10-22 | Fuel pump control (FPC) | low_side_out | — | — | — | single_source | |
| OEM-E10-23 | A/C clutch relay (ACMG) | low_side_out | SPEEDUINO-A-16 | Proto area 3 (fuel pump) | low_side_out | single_source | |
| OEM-E10-24 | EFI main relay control (M-REL) | low_side_out | SPEEDUINO-A-15 | Proto area 2 (fan) | low_side_out | single_source | |
| OEM-E10-25 | A/T manual indicator (MI) | digital_in | — | — | — | single_source | |
| OEM-E10-28 | A/T overdrive disable 2 (OD2) | digital_in | — | — | — | single_source | |
| OEM-E10-29 | Cat temperature sensor (CCO) | temp_in | SPEEDUINO-A-20 | Inlet air temp (IAT) | temp_in | single_source | |
| OEM-E10-3 | A/T kickdown switch (KD) | digital_in | — | — | — | single_source | |
| OEM-E10-31 | EFI main relay power (+B) | power_in | — | — | — | single_source | |
| OEM-E10-32 | EFI main relay power (+B1) | power_in | — | — | — | single_source | |
| OEM-E10-33 | Battery constant (BATT) | power_in | — | — | — | single_source | |
| OEM-E10-34 | A/C request (A/C) | digital_in | — | — | — | single_source | |
| OEM-E10-35 | Power steering switch (PS) | digital_in | — | — | — | single_source | |
| OEM-E10-4 | Stop light switch (STP) | digital_in | — | — | — | single_source | |
| OEM-E10-5 | Cat-temp warning light (EGW) | low_side_out | — | — | — | single_source | |
| OEM-E10-6 | Check-engine light (W) | low_side_out | — | — | — | single_source | |
| OEM-E10-9 | A/T 2nd-gear indicator (2) | digital_in | — | — | — | single_source | |
| OEM-E9-10 | A/T shift solenoid 1 (S1) | low_side_out | SPEEDUINO-A-36 | Idle 2 (3-wire idle) | low_side_out | single_source | |
| OEM-E9-15 | Injector 6 (#60, rear) | injector_out | SPEEDUINO-A-2 | Injector 2 | injector_out | single_source | |
| OEM-E9-16 | Injector 5 (#50) | injector_out | SPEEDUINO-A-1 | Injector 1 | injector_out | single_source | |
| OEM-E9-17 | Injector 4 (#40) | injector_out | SPEEDUINO-A-5 | Injector 4 | injector_out | single_source | |
| OEM-E9-18 | Injector 3 (#30) | injector_out | SPEEDUINO-A-3 | Injector 3 | injector_out | single_source | |
| OEM-E9-19 | Injector 2 (#20) | injector_out | SPEEDUINO-A-2 | Injector 2 | injector_out | single_source | |
| OEM-E9-20 | Injector 1 (#10, front) | injector_out | SPEEDUINO-A-1 | Injector 1 | injector_out | single_source | |
| OEM-E9-23 | No.2 speed sensor (SP2+) | digital_in | SPEEDUINO-A-18 | Proto area 5 (clutch) | digital_in | single_source | |
| OEM-E9-24 | A/T oil temperature (OIL) | temp_in | — | — | — | single_source | |
| OEM-E9-25 | Cam position 2 (G2) | trigger_in | SPEEDUINO-A-26 | VR2- | trigger_in | single_source | |
| OEM-E9-26 | Cam position 1 (G1) | trigger_in | SPEEDUINO-A-24 | Cam input / VR2+ | trigger_in | single_source | |
| OEM-E9-27 | Crank position (NE) | trigger_in | SPEEDUINO-A-25 | Crank input / VR1+ | trigger_in | single_source | |
| OEM-E9-28 | Voltage feedback 2 (VF2) | analog_out | — | — | — | single_source | |
| OEM-E9-29 | Voltage feedback 1 (VF1) | analog_out | — | — | — | single_source | |
| OEM-E9-3 | No.2 speed sensor return (SP2-) | digital_in | — | — | — | single_source | |
| OEM-E9-32 | ISC stepper coil 4 (ISC4) | low_side_out | — | — | — | single_source | |
| OEM-E9-33 | ISC stepper coil 3 (ISC3) | low_side_out | — | — | — | single_source | |
| OEM-E9-34 | ISC stepper coil 2 (ISC2) | low_side_out | SPEEDUINO-A-37 | PWM idle | low_side_out | single_source | |
| OEM-E9-35 | ISC stepper coil 1 (ISC1) | low_side_out | SPEEDUINO-A-35 | Boost | low_side_out | single_source | |
| OEM-E9-39 | ACIS intake VSV | low_side_out | — | — | — | single_source | |
| OEM-E9-4 | Power ground (E11) | ground | SPEEDUINO-A-10 + SPEEDUINO-A-9 | Ground + Ground | ground | single_source | |
| OEM-E9-41 | Sensor supply +5V (VCC) | vref | SPEEDUINO-A-13 | 5V | vref | single_source | |
| OEM-E9-43 | Throttle position (VTA1) | analog_in | SPEEDUINO-A-22 | TPS input | analog_in | single_source | |
| OEM-E9-44 | Coolant temperature (THW) | temp_in | SPEEDUINO-A-19 | Coolant temp (CLT) | temp_in | single_source | |
| OEM-E9-45 | Intake air temperature (THA) | temp_in | — | — | — | single_source | |
| OEM-E9-47 | O2 sensor 2 (OX2, rear bank) | lambda_nb_in | SPEEDUINO-A-21 | O2 sensor | lambda_nb_in | single_source | |
| OEM-E9-48 | O2 sensor 1 (OX1, front bank) | lambda_nb_in | — | — | — | single_source | |
| OEM-E9-49 | Knock sensor 2 (KNK2, rear) | knock_in | — | — | — | single_source | |
| OEM-E9-50 | Knock sensor 1 (KNK1, front) | knock_in | — | — | — | single_source | |
| OEM-E9-57 | Igniter trigger (IGT) | ignition_out | SPEEDUINO-A-7 | Ignition 1 | ignition_out | single_source | |
| OEM-E9-58 | Igniter verification (IGF) | digital_in | — | — | — | single_source | |
| OEM-E9-62 | Manifold pressure (PIM) | analog_in | SPEEDUINO-A-11 | MAP sensor (0-5V) | analog_in | single_source | |
| OEM-E9-64 | TPS idle switch (IDL1) | digital_in | — | — | — | single_source | |
| OEM-E9-65 | Sensor ground (E2) | sensor_ground | SPEEDUINO-A-12 + SPEEDUINO-A-23 | Ground + Ground | sensor_ground | single_source | |
| OEM-E9-69 | Power ground (E1) | ground | SPEEDUINO-A-10 + SPEEDUINO-A-9 | Ground + Ground | ground | single_source | |
| OEM-E9-7 | Distributor ground (G-) | sensor_ground | SPEEDUINO-A-12 + SPEEDUINO-A-23 | Ground + Ground | sensor_ground | single_source | |
| OEM-E9-74 | EVAP purge VSV | low_side_out | — | — | — | single_source | |
| OEM-E9-76 | Neutral/park switch (NSW) | digital_in | — | — | — | single_source | |
| OEM-E9-77 | Starter signal (STA) | digital_in | — | — | — | single_source | |
| OEM-E9-79 | Power ground (E02) | ground | SPEEDUINO-A-10 + SPEEDUINO-A-9 | Ground + Ground | ground | single_source | |
| OEM-E9-8 | A/T lock-up solenoid (S3) | low_side_out | — | — | — | single_source | |
| OEM-E9-80 | Power ground (E01) | ground | SPEEDUINO-A-10 + SPEEDUINO-A-9 | Ground + Ground | ground | single_source | |
| OEM-E9-9 | A/T shift solenoid 2 (S2) | low_side_out | SPEEDUINO-A-38 | VVT | low_side_out | single_source |
Cut list
| Wire | From | To | Gauge (mm²) | Colour | Length | Signal | Ident |
|---|---|---|---|---|---|---|---|
| W1 | OEM-E9-4 | SP-GND-1 | 0.85 | no route | Power ground (E11) | — | |
| W2 | OEM-E9-69 | SP-GND-1 | 0.85 | no route | Power ground (E1) | — | |
| W3 | OEM-E9-79 | SP-GND-1 | 0.85 | no route | Power ground (E02) | — | |
| W4 | OEM-E9-80 | SP-GND-1 | 0.85 | no route | Power ground (E01) | — | |
| W5 | SP-GND-1 | SPEEDUINO-A-10 | 0.85 | no route | Ground | — | |
| W6 | SP-GND-1 | SPEEDUINO-A-9 | 0.85 | no route | Ground | — | |
| W7 | OEM-E9-65 | SP-0V-1 | 0.5 | no route | Sensor ground (E2) | — | |
| W8 | OEM-E9-7 | SP-0V-1 | 0.5 | no route | Distributor ground (G-) | — | |
| W9 | SP-0V-1 | SPEEDUINO-A-12 | 0.5 | no route | Ground | — | |
| W10 | SP-0V-1 | SPEEDUINO-A-23 | 0.5 | no route | Ground | — | |
| W11 | OEM-E9-41 | SPEEDUINO-A-13 | 0.5 | no route | Sensor supply +5V (VCC) | — | |
| W12 | OEM-E9-27 | SPEEDUINO-A-25 | 0.5 | no route | Crank position (NE) | — | |
| W13 | OEM-E9-26 | SPEEDUINO-A-24 | 0.5 | no route | Cam position 1 (G1) | — | |
| W14 | OEM-E9-25 | SPEEDUINO-A-26 | 0.5 | no route | Cam position 2 (G2) | — | |
| W15 | OEM-E9-57 | SPEEDUINO-A-7 | 0.5 | no route | Igniter trigger (IGT) | — | |
| W16 | OEM-E9-20 | SPEEDUINO-A-1 | 0.5 | no route | Injector 1 (#10, front) | — | |
| W17 | OEM-E9-19 | SPEEDUINO-A-2 | 0.5 | no route | Injector 2 (#20) | — | |
| W18 | OEM-E9-18 | SPEEDUINO-A-3 | 0.5 | no route | Injector 3 (#30) | — | |
| W19 | OEM-E9-17 | SPEEDUINO-A-5 | 0.5 | no route | Injector 4 (#40) | — | |
| W20 | OEM-E9-16 | SPEEDUINO-A-1 | 0.5 | no route | Injector 5 (#50) | — | |
| W21 | OEM-E9-15 | SPEEDUINO-A-2 | 0.5 | no route | Injector 6 (#60, rear) | — | |
| W22 | OEM-E9-62 | SPEEDUINO-A-11 | 0.5 | no route | Manifold pressure (PIM) | — | |
| W23 | OEM-E9-43 | SPEEDUINO-A-22 | 0.5 | no route | Throttle position (VTA1) | — | |
| W24 | OEM-E9-44 | SPEEDUINO-A-19 | 0.5 | no route | Coolant temperature (THW) | — | |
| W25 | OEM-E10-23 | SPEEDUINO-A-16 | 0.5 | no route | A/C clutch relay (ACMG) | — | |
| W26 | OEM-E10-24 | SPEEDUINO-A-15 | 0.5 | no route | EFI main relay control (M-REL) | — | |
| W27 | OEM-E9-10 | SPEEDUINO-A-36 | 0.5 | no route | A/T shift solenoid 1 (S1) | — | |
| W28 | OEM-E9-35 | SPEEDUINO-A-35 | 0.5 | no route | ISC stepper coil 1 (ISC1) | — | |
| W29 | OEM-E9-34 | SPEEDUINO-A-37 | 0.5 | no route | ISC stepper coil 2 (ISC2) | — | |
| W30 | OEM-E9-9 | SPEEDUINO-A-38 | 0.5 | no route | A/T shift solenoid 2 (S2) | — | |
| W31 | OEM-E9-47 | SPEEDUINO-A-21 | 0.5 | no route | O2 sensor 2 (OX2, rear bank) | — | |
| W32 | OEM-E10-29 | SPEEDUINO-A-20 | 0.5 | no route | Cat temperature sensor (CCO) | — | |
| W33 | OEM-E10-2 | SPEEDUINO-A-14 | 0.5 | no route | No.1 speed sensor (SP1) | — | |
| W34 | OEM-E9-23 | SPEEDUINO-A-18 | 0.5 | no route | No.2 speed sensor (SP2+) | — |
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 (8)
| Severity | Code | Subject | Message |
|---|---|---|---|
| error | NET_MERGED | OEM-E9-15 + OEM-E9-19 + SPEEDUINO-A-2 | 2 different OEM functions share one net: OEM-E9-15 Injector 6 (#60, rear); OEM-E9-19 Injector 2 (#20) |
| error | NET_MERGED | OEM-E9-16 + OEM-E9-20 + SPEEDUINO-A-1 | 2 different OEM functions share one net: OEM-E9-16 Injector 5 (#50); OEM-E9-20 Injector 1 (#10, front) |
| error | REQUIRED_UNMAPPED | OEM-E10-1 | Required OEM function "Ignition switch (IGSW)" (digital_in) is not connected to the new ECU. |
| error | REQUIRED_UNMAPPED | OEM-E10-31 | Required OEM function "EFI main relay power (+B)" (power_in) is not connected to the new ECU. |
| error | REQUIRED_UNMAPPED | OEM-E10-32 | Required OEM function "EFI main relay power (+B1)" (power_in) is not connected to the new ECU. |
| warn | LOAD_UNKNOWN | SPEEDUINO-A-15 | SPEEDUINO-A-15 "Proto area 2 (fan)" drives OEM-E10-24 EFI main relay control (M-REL) (load 0.2 A) but its current rating is unknown. Check the ECU manual. |
| warn | LOAD_UNKNOWN | SPEEDUINO-A-16 | SPEEDUINO-A-16 "Proto area 3 (fuel pump)" drives OEM-E10-23 A/C clutch relay (ACMG) (load 0.2 A) but its current rating is unknown. Check the ECU manual. |
| info | UNMAPPED | OEM | 35 optional OEM pins are not mapped: OEM-E10-10 A/T low-gear indicator (L); OEM-E10-12 A/T overdrive disable 1 (OD1); OEM-E10-15 Electrical load sense (ELS); OEM-E10-17 Diagnostic test terminal (TT); OEM-E10-18 A/T manual mode select (M); OEM-E10-19 Diagnostic test 2 (TE2); OEM-E10-20 Diagnostic test 1 (TE1); OEM-E10-21 Fuel pump diagnostic (DI); OEM-E10-22 Fuel pump control (FPC); OEM-E10-25 A/T manual indicator (MI); OEM-E10-28 A/T overdrive disable 2 (OD2); OEM-E10-3 A/T kickdown switch (KD); OEM-E10-34 A/C request (A/C); OEM-E10-35 Power steering switch (PS); OEM-E10-4 Stop light switch (STP); OEM-E10-5 Cat-temp warning light (EGW); OEM-E10-6 Check-engine light (W); OEM-E10-9 A/T 2nd-gear indicator (2); OEM-E9-24 A/T oil temperature (OIL); OEM-E9-28 Voltage feedback 2 (VF2); OEM-E9-29 Voltage feedback 1 (VF1); OEM-E9-3 No.2 speed sensor return (SP2-); OEM-E9-32 ISC stepper coil 4 (ISC4); OEM-E9-33 ISC stepper coil 3 (ISC3); OEM-E9-39 ACIS intake VSV; OEM-E9-45 Intake air temperature (THA); OEM-E9-48 O2 sensor 1 (OX1, front bank); OEM-E9-49 Knock sensor 2 (KNK2, rear); OEM-E9-50 Knock sensor 1 (KNK1, front); OEM-E9-58 Igniter verification (IGF); OEM-E9-64 TPS idle switch (IDL1); OEM-E9-74 EVAP purge VSV; OEM-E9-76 Neutral/park switch (NSW); OEM-E9-77 Starter signal (STA); OEM-E9-8 A/T lock-up solenoid (S3) |
Accepted (1)
| Code | Subject | Reason | By |
|---|---|---|---|
| REQUIRED_UNMAPPED | OEM-E10-33 | Battery-constant (memory) feed of the stock ECU: the new ECU has no such input, so it is not needed. | mapping-proposal |
Notes
Fit check: unconfirmed. Confirm these before building: - Trigger pattern for Toyota 2JZ not found in the ECU's docs (no named 12-tooth JZ decoder; the "Toyota 3 tooth cam" decoder (VVT-i) is in_development) - No knock input; the stock knock sensor would be unused - Only 4 ignition outputs for 6 cylinders: wasted spark (pair coils per firing order) - Only 4 injector outputs for 6 injectors: batch / semi-sequential injection 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 - 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); Speeduino Speeduino has no dedicated key-on input - OEM-E10 31: EFI main relay power (+B): no rule for class ecu_main_power; wire by hand - OEM-E10 32: EFI main relay power (+B1): no rule for class ecu_main_power; wire by hand Not wired: - OEM-E10 33: Battery constant (BATT): Speeduino Speeduino has no battery-constant input; not needed - OEM-E9 50: Knock sensor 1 (KNK1, front): no free knock input on Speeduino Speeduino - OEM-E9 49: Knock sensor 2 (KNK2, rear): no free knock input on Speeduino Speeduino - OEM-E9 33: ISC stepper coil 3 (ISC3): no free low_side/relay_control/heater_low_side/ls_hs/injector on Speeduino Speeduino - OEM-E9 32: ISC stepper coil 4 (ISC4): no free low_side/relay_control/heater_low_side/ls_hs/injector on Speeduino Speeduino - OEM-E10 22: Fuel pump control (FPC): no free low_side/relay_control/heater_low_side/ls_hs/injector on Speeduino Speeduino - OEM-E10 5: Cat-temp warning light (EGW): no free low_side/relay_control/heater_low_side/ls_hs/injector on Speeduino Speeduino - OEM-E10 6: Check-engine light (W): no free low_side/relay_control/heater_low_side/ls_hs/injector on Speeduino Speeduino - OEM-E9 39: ACIS intake VSV: no free low_side/relay_control/heater_low_side/ls_hs/injector on Speeduino Speeduino - OEM-E9 74: EVAP purge VSV: no free low_side/relay_control/heater_low_side/ls_hs/injector on Speeduino Speeduino - OEM-E9 8: A/T lock-up solenoid (S3): no free low_side/relay_control/heater_low_side/ls_hs/injector on Speeduino Speeduino - OEM-E9 48: O2 sensor 1 (OX1, front bank): no free o2_narrowband/analog_0_5 on Speeduino Speeduino - OEM-E9 24: A/T oil temperature (OIL): no free thermistor/analog_0_5 on Speeduino Speeduino - OEM-E9 45: Intake air temperature (THA): no free thermistor/analog_0_5 on Speeduino Speeduino - OEM-E9 3: No.2 speed sensor return (SP2-): no free frequency_in/switch_in on Speeduino Speeduino - OEM-E10 21: Fuel pump diagnostic (DI): no free frequency_in/switch_in on Speeduino Speeduino - OEM-E9 58: Igniter verification (IGF): no free frequency_in/switch_in on Speeduino Speeduino - OEM-E10 12: A/T overdrive disable 1 (OD1): no free switch_in/frequency_in/analog_0_5 on Speeduino Speeduino - OEM-E10 20: Diagnostic test 1 (TE1): no free switch_in/frequency_in/analog_0_5 on Speeduino Speeduino - OEM-E10 19: Diagnostic test 2 (TE2): no free switch_in/frequency_in/analog_0_5 on Speeduino Speeduino - OEM-E10 28: A/T overdrive disable 2 (OD2): no free switch_in/frequency_in/analog_0_5 on Speeduino Speeduino - OEM-E10 9: A/T 2nd-gear indicator (2): no free switch_in/frequency_in/analog_0_5 on Speeduino Speeduino - OEM-E10 10: A/T low-gear indicator (L): no free switch_in/frequency_in/analog_0_5 on Speeduino Speeduino - OEM-E10 15: Electrical load sense (ELS): no free switch_in/frequency_in/analog_0_5 on Speeduino Speeduino - OEM-E10 17: Diagnostic test terminal (TT): no free switch_in/frequency_in/analog_0_5 on Speeduino Speeduino - OEM-E10 18: A/T manual mode select (M): no free switch_in/frequency_in/analog_0_5 on Speeduino Speeduino - OEM-E10 25: A/T manual indicator (MI): no free switch_in/frequency_in/analog_0_5 on Speeduino Speeduino - OEM-E10 3: A/T kickdown switch (KD): no free switch_in/frequency_in/analog_0_5 on Speeduino Speeduino - OEM-E10 34: A/C request (A/C): no free switch_in/frequency_in/analog_0_5 on Speeduino Speeduino - OEM-E10 35: Power steering switch (PS): no free switch_in/frequency_in/analog_0_5 on Speeduino Speeduino - OEM-E10 4: Stop light switch (STP): no free switch_in/frequency_in/analog_0_5 on Speeduino Speeduino - OEM-E9 64: TPS idle switch (IDL1): no free switch_in/frequency_in/analog_0_5 on Speeduino Speeduino - OEM-E9 76: Neutral/park switch (NSW): no free switch_in/frequency_in/analog_0_5 on Speeduino Speeduino - OEM-E9 77: Starter signal (STA): no free switch_in/frequency_in/analog_0_5 on Speeduino Speeduino - OEM-E9 29: Voltage feedback 1 (VF1): no free analog_out on Speeduino Speeduino - OEM-E9 28: Voltage feedback 2 (VF2): no free analog_out on Speeduino Speeduino
Sources
| Reliability | Kind | Title | URL | Archive | Captured | SHA-256 |
|---|---|---|---|---|---|---|
| 4 | vendor_doc | Speeduino Manual (08/04/25) — V0.4 board IDC40 pinout & features | https://speeduino.com/Speeduino_manual.pdf | archive | 2026-10-05 | 21806bd29ef0 |
| 3 | community_copy | wilbo666: 2JZ-GE JZA80 Supra Engine Wiring (ECU pinout, E10/E9) | http://wilbo666.pbworks.com/w/page/41678224/2JZ-GE%20JZA80%20Supra%20Engine%20Wiring | — | — | — |