Lexus LS400 1989-97 (1UZ-FE non-VVTi) → Emtron SL8 (auto)
Lexus LS400 1989-97 (1UZ-FE non-VVTi) — Emtron — SL8
⚠ NOT CHECKED. Don't build from this.
Drawn by Michael Gnankou · Rev 0 · draft · 2026-10-12
Before you start
Not confident with automotive wiring? Have a professional harness builder or tuner do it, or check your work before first power-up. A wiring mistake can damage the ECU, the engine or the car, or start a fire.
| Status | draft · not yet verified: nobody has reported building and running this harness |
|---|---|
| Open errors | 1: read the Findings page before cutting any wire |
| Size of the job | 56 wires · 9 connectors · 3 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-A-12 | SP-14V-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W2 | OEM-A-13 | SP-14V-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W3 | SP-14V-1 | SL8-A-34 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W4 | SP-14V-1 | SL8-B-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W5 | OEM-A-22 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W6 | OEM-D-13 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W7 | OEM-D-26 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W8 | SP-GND-1 | SL8-B-18 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W9 | SP-GND-1 | SL8-B-26 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W10 | OEM-A-18 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W11 | OEM-C-15 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W12 | OEM-C-16 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W13 | SP-0V-1 | SL8-B-10 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W14 | OEM-A-11 | SL8-B-2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W15 | OEM-C-8 | SL8-B-5 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W16 | SP-0V-1 | SL8-B-6 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W17 | OEM-C-7 | SL8-B-7 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W18 | SP-0V-1 | SL8-B-8 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W19 | OEM-C-3 | SL8-B-16 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W20 | OEM-C-11 | SL8-B-24 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W21 | OEM-C-5 | SL8-A-26 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W22 | OEM-C-13 | SL8-A-27 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W23 | OEM-D-12 | SL8-A-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W24 | OEM-D-11 | SL8-A-2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W25 | OEM-D-24 | SL8-A-3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W26 | OEM-D-25 | SL8-A-4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W27 | OEM-A-1 | SL8-B-4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W28 | OEM-A-4 | SL8-B-11 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W29 | OEM-A-5 | SL8-B-12 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W30 | OEM-B-4 | SL8-B-3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W31 | OEM-B-6 | SL8-A-14 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W32 | OEM-B-7 | SL8-A-15 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W33 | OEM-D-19 | SL8-A-16 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W34 | OEM-D-20 | SL8-A-17 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W35 | OEM-D-17 | SL8-A-10 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W36 | OEM-D-8 | SL8-A-11 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W37 | OEM-D-7 | SL8-A-12 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W38 | OEM-D-6 | SL8-A-13 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W39 | OEM-D-5 | SL8-A-5 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W40 | OEM-B-5 | SL8-A-6 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W41 | OEM-B-8 | SL8-A-7 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W42 | OEM-D-21 | SL8-A-8 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W43 | OEM-A-17 | SL8-B-13 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W44 | OEM-A-6 | SL8-B-14 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W45 | OEM-B-11 | SL8-B-15 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W46 | OEM-B-24 | SL8-B-19 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W47 | OEM-A-16 | SL8-B-20 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W48 | OEM-A-7 | SL8-B-21 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W49 | OEM-C-2 | SL8-A-20 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W50 | OEM-C-10 | SL8-A-21 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W51 | OEM-A-19 | SL8-A-22 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W52 | OEM-A-9 | SL8-A-23 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W53 | OEM-A-20 | SL8-A-24 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W54 | OEM-A-14 | SL8-A-25 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W55 | OEM-A-2 | SL8-B-22 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W56 | OEM-B-19 | SL8-B-23 | 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 | SL8-A-34 | SL8-B-10 | open (OL) | +12 V supply must not touch sensor ground | |
| 2 | SL8-A-34 | SL8-B-18 | open (OL) | +12 V supply must not touch power ground | |
| 3 | SL8-B-2 | SL8-B-10 | open (OL) | 5 V sensor reference must not touch sensor ground | |
| 4 | SL8-B-2 | SL8-B-18 | open (OL) | 5 V sensor reference must not touch power ground | |
| 5 | SL8-B-2 | SL8-A-34 | open (OL) | 5 V sensor reference must not touch +12 V supply |
If any reading doesn't match, stop and get help before powering up.
Revisions
| Rev | Label | By | Date |
|---|---|---|---|
| No revisions yet. | |||
Schematic
Connectors
OEM-A
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Ignition switch (IGSW) | — | W27 | — | 0.5 | SL8-B-4 | — | — | — |
| 11 | Sensor supply +5V (VC) | — | W14 | — | 0.5 | SL8-B-2 | — | — | — |
| 12 | EFI main relay (B+) | — | W1 | — | 0.85 | SP-14V-1 | — | — | — |
| 13 | EFI main relay (B1+) | — | W2 | — | 0.85 | SP-14V-1 | — | — | — |
| 14 | Neutral start switch (NSW) | — | W54 | — | 0.5 | SL8-A-25 | — | — | — |
| 16 | Intake air temperature (THA) | — | W47 | — | 0.5 | SL8-B-20 | — | — | — |
| 17 | O2 right front (OXR1) | — | W43 | — | 0.5 | SL8-B-13 | — | — | — |
| 18 | Sensor ground (E2) | — | W10 | — | 0.5 | SP-0V-1 | — | — | — |
| 19 | Vehicle speed (SPD) | — | W51 | — | 0.5 | SL8-A-22 | — | — | — |
| 2 | Starter signal (STA) | — | W55 | — | 0.5 | SL8-B-22 | — | — | — |
| 20 | Diagnostic test 2 (TE2) | — | W53 | — | 0.5 | SL8-A-24 | — | — | — |
| 22 | Power ground (E1) | — | W5 | — | 0.85 | SP-GND-1 | — | — | — |
| 4 | Throttle position (VTA1) | — | W28 | — | 0.5 | SL8-B-11 | — | — | — |
| 5 | Coolant temperature (THW) | — | W29 | — | 0.5 | SL8-B-12 | — | — | — |
| 6 | O2 left front (OXL1) | — | W44 | — | 0.5 | SL8-B-14 | — | — | — |
| 7 | EGR temperature sensor | — | W48 | — | 0.5 | SL8-B-21 | — | — | — |
| 8 | Knock/shield (KS) | — | — | — | — | — | — | — | — |
| 9 | Diagnostic test 1 (TE1) | — | W52 | — | 0.5 | SL8-A-23 | — | — | — |
OEM-B
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 11 | O2 right rear (OXR2) | — | W45 | — | 0.5 | SL8-B-15 | — | — | — |
| 19 | Stop light switch (BK) | — | W56 | — | 0.5 | SL8-B-23 | — | — | — |
| 20 | A/T kickdown switch (KD) | — | — | — | — | — | — | — | — |
| 23 | A/C request (AC) | — | — | — | — | — | — | — | — |
| 24 | O2 left rear (OXL2) | — | W46 | — | 0.5 | SL8-B-19 | — | — | — |
| 26 | Battery constant (BATT) | — | — | — | — | — | — | — | — |
| 4 | EFI main relay control (MREL) | — | W30 | — | 0.5 | SL8-B-3 | — | — | — |
| 5 | Check-engine lamp (W) | — | W40 | — | 0.5 | SL8-A-6 | — | — | — |
| 6 | Fuel pump relay (FPR) | — | W31 | — | 0.5 | SL8-A-14 | — | — | — |
| 7 | A/C clutch relay (ACMG) | — | W32 | — | 0.5 | SL8-A-15 | — | — | — |
| 8 | Fuel pump control (FC) | — | W41 | — | 0.5 | SL8-A-7 | — | — | — |
OEM-C
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | TPS idle switch (IDL) | — | — | — | — | — | — | — | — |
| 10 | Igniter 2 feedback (IGF2) | — | W50 | — | 0.5 | SL8-A-21 | — | — | — |
| 11 | Knock sensor 2 (KNK2) | — | W20 | — | 0.5 | SL8-B-24 | — | — | — |
| 12 | Check connector VF2 | — | — | — | — | — | — | — | — |
| 13 | Ignition 2 (IGT2) | — | W22 | — | 0.5 | SL8-A-27 | — | — | — |
| 15 | Cam sensor ground (G-) | — | W11 | — | 0.5 | SP-0V-1 | — | — | — |
| 16 | Crank sensor - (NE-) | — | W12 | — | 0.5 | SP-0V-1 | — | — | — |
| 2 | Igniter 1 feedback (IGF1) | — | W49 | — | 0.5 | SL8-A-20 | — | — | — |
| 3 | Knock sensor 1 (KNK1) | — | W19 | — | 0.5 | SL8-B-16 | — | — | — |
| 4 | Check connector VF1 | — | — | — | — | — | — | — | — |
| 5 | Ignition 1 (IGT1) | — | W21 | — | 0.5 | SL8-A-26 | — | — | — |
| 6 | Cam sensor 2 + (G2+) | — | — | — | — | — | — | — | — |
| 7 | Cam sensor 1 + (G1+) | — | W17 | — | 0.5 | SL8-B-7 | — | — | — |
| 8 | Crank sensor + (NE+) | — | W15 | — | 0.5 | SL8-B-5 | — | — | — |
OEM-D
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 11 | Injector 2&8 (#20) | — | W24 | — | 0.5 | SL8-A-2 | — | — | — |
| 12 | Injector 1&7 (#10) | — | W23 | — | 0.5 | SL8-A-1 | — | — | — |
| 13 | Power ground (E01) | — | W6 | — | 0.85 | SP-GND-1 | — | — | — |
| 17 | Cold start injector 1 (STJ1) | — | W35 | — | 0.5 | SL8-A-10 | — | — | — |
| 19 | O2 heater 2 (HT2) | — | W33 | — | 0.5 | SL8-A-16 | — | — | — |
| 20 | O2 heater 1 (HT1) | — | W34 | — | 0.5 | SL8-A-17 | — | — | — |
| 21 | EGR solenoid | — | W42 | — | 0.5 | SL8-A-8 | — | — | — |
| 22 | Fuel pressure-up VSV (PR) | — | — | — | — | — | — | — | — |
| 24 | Injector 3&5 (#40) | — | W25 | — | 0.5 | SL8-A-3 | — | — | — |
| 25 | Injector 4&6 (#30) | — | W26 | — | 0.5 | SL8-A-4 | — | — | — |
| 26 | Power ground (E02) | — | W7 | — | 0.85 | SP-GND-1 | — | — | — |
| 4 | Cold start injector (STJ) | — | — | — | — | — | — | — | — |
| 5 | ISC stepper coil 4 (ISC4) | — | W39 | — | 0.5 | SL8-A-5 | — | — | — |
| 6 | ISC stepper coil 3 (ISC3) | — | W38 | — | 0.5 | SL8-A-13 | — | — | — |
| 7 | ISC stepper coil 2 (ISC2) | — | W37 | — | 0.5 | SL8-A-12 | — | — | — |
| 8 | ISC stepper coil 1 (ISC1) | — | W36 | — | 0.5 | SL8-A-11 | — | — | — |
SL8-A
Mating face
Wire side
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Injection channel 1 | — | W23 | — | 0.5 | OEM-D-12 | — | — | — |
| 2 | Injection channel 2 | — | W24 | — | 0.5 | OEM-D-11 | — | — | — |
| 3 | Injection channel 3 | — | W25 | — | 0.5 | OEM-D-24 | — | — | — |
| 4 | Injection channel 4 | — | W26 | — | 0.5 | OEM-D-25 | — | — | — |
| 5 | Injection channel 5 | — | W39 | — | 0.5 | OEM-D-5 | — | — | — |
| 6 | Injection channel 6 | — | W40 | — | 0.5 | OEM-B-5 | — | — | — |
| 7 | Injection channel 7 | — | W41 | — | 0.5 | OEM-B-8 | — | — | — |
| 8 | Injection channel 8 | — | W42 | — | 0.5 | OEM-D-21 | — | — | — |
| 9 | Sensor supply 8V | — | — | — | — | — | — | — | — |
| 10 | Auxiliary output 1 | — | W35 | — | 0.5 | OEM-D-17 | — | — | — |
| 11 | Auxiliary output 2 | — | W36 | — | 0.5 | OEM-D-8 | — | — | — |
| 12 | Auxiliary output 3 | — | W37 | — | 0.5 | OEM-D-7 | — | — | — |
| 13 | Auxiliary output 4 | — | W38 | — | 0.5 | OEM-D-6 | — | — | — |
| 14 | Auxiliary output 5 | — | W31 | — | 0.5 | OEM-B-6 | — | — | — |
| 15 | Auxiliary output 6 | — | W32 | — | 0.5 | OEM-B-7 | — | — | — |
| 16 | Auxiliary output 7 | — | W33 | — | 0.5 | OEM-D-19 | — | — | — |
| 17 | Auxiliary output 8 | — | W34 | — | 0.5 | OEM-D-20 | — | — | — |
| 18 | Auxiliary output 9 | — | — | — | — | — | — | — | — |
| 19 | Auxiliary output 10 | — | — | — | — | — | — | — | — |
| 20 | Digital input 1 | — | W49 | — | 0.5 | OEM-C-2 | — | — | — |
| 21 | Digital input 2 | — | W50 | — | 0.5 | OEM-C-10 | — | — | — |
| 22 | Digital input 3 | — | W51 | — | 0.5 | OEM-A-19 | — | — | — |
| 23 | Digital input 4 | — | W52 | — | 0.5 | OEM-A-9 | — | — | — |
| 24 | Digital input 5 | — | W53 | — | 0.5 | OEM-A-20 | — | — | — |
| 25 | Digital input 6 | — | W54 | — | 0.5 | OEM-A-14 | — | — | — |
| 26 | Ignition channel 1 | — | W21 | — | 0.5 | OEM-C-5 | — | — | — |
| 27 | Ignition channel 2 | — | W22 | — | 0.5 | OEM-C-13 | — | — | — |
| 28 | Ignition channel 3 | — | — | — | — | — | — | — | — |
| 29 | Ignition channel 4 | — | — | — | — | — | — | — | — |
| 30 | Ignition channel 5 | — | — | — | — | — | — | — | — |
| 31 | Ignition channel 6 | — | — | — | — | — | — | — | — |
| 32 | Ignition channel 7 | — | — | — | — | — | — | — | — |
| 33 | Ignition channel 8 | — | — | — | — | — | — | — | — |
| 34 | Aux 9–10 14V supply | — | W3 | — | 0.85 | SP-14V-1 | — | — | — |
SL8-B
Mating face
Wire side
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | ECU 14V supply | — | W4 | — | 0.85 | SP-14V-1 | — | — | — |
| 2 | Sensor supply Vref1 5.0V | — | W14 | — | 0.5 | OEM-A-11 | — | — | — |
| 3 | EFI relay output (low side, 200 mA) | — | W30 | — | 0.5 | OEM-B-4 | — | — | — |
| 4 | Ignition switch input | — | W27 | — | 0.5 | OEM-A-1 | — | — | — |
| 5 | Crank index sensor + | — | W15 | — | 0.5 | OEM-C-8 | — | — | — |
| 6 | Crank index sensor − | — | W16 | — | 0.5 | SP-0V-1 | — | — | — |
| 7 | Sync sensor + | — | W17 | — | 0.5 | OEM-C-7 | — | — | — |
| 8 | Sync sensor − | — | W18 | — | 0.5 | SP-0V-1 | — | — | — |
| 9 | Shield (crank/sync/knock) | — | — | — | — | — | — | — | — |
| 10 | Analog sensor 0V reference | — | W13 | — | 0.5 | SP-0V-1 | — | — | — |
| 11 | Analog input 1 | — | W28 | — | 0.5 | OEM-A-4 | — | — | — |
| 12 | Analog input 2 | — | W29 | — | 0.5 | OEM-A-5 | — | — | — |
| 13 | Analog input 3 | — | W43 | — | 0.5 | OEM-A-17 | — | — | — |
| 14 | Analog input 4 | — | W44 | — | 0.5 | OEM-A-6 | — | — | — |
| 15 | Analog input 5 | — | W45 | — | 0.5 | OEM-B-11 | — | — | — |
| 16 | Knock 1 + | — | W19 | — | 0.5 | OEM-C-3 | — | — | — |
| 17 | Knock 1 − | — | — | — | — | — | — | — | — |
| 18 | ECU ground | — | W8 | — | 0.85 | SP-GND-1 | — | — | — |
| 19 | Analog input 6 | — | W46 | — | 0.5 | OEM-B-24 | — | — | — |
| 20 | Analog input 7 (switchable 1k pull-up) | — | W47 | — | 0.5 | OEM-A-16 | — | — | — |
| 21 | Analog input 8 (switchable 1k pull-up) | — | W48 | — | 0.5 | OEM-A-7 | — | — | — |
| 22 | Analog input 9 (switchable 1k pull-up) | — | W55 | — | 0.5 | OEM-A-2 | — | — | — |
| 23 | Analog input 10 (switchable 1k pull-up) | — | W56 | — | 0.5 | OEM-B-19 | — | — | — |
| 24 | Knock 2 + | — | W20 | — | 0.5 | OEM-C-11 | — | — | — |
| 25 | Knock 2 − | — | — | — | — | — | — | — | — |
| 26 | ECU ground | — | W9 | — | 0.85 | SP-GND-1 | — | — | — |
| 27 | CAN 1 H | — | — | — | — | — | — | — | — |
| 28 | CAN 1 L | — | — | — | — | — | — | — | — |
| 29 | NC | — | — | — | — | — | — | — | — |
| 30 | NC | — | — | — | — | — | — | — | — |
| 31 | Ethernet Tx + | — | — | — | — | — | — | — | — |
| 32 | Ethernet Tx − | — | — | — | — | — | — | — | — |
| 33 | Ethernet Rx + | — | — | — | — | — | — | — | — |
| 34 | Ethernet Rx − | — | — | — | — | — | — | — | — |
SP-0V
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W10 | — | 0.5 | OEM-A-18 | — | — | — |
| 1 | — | — | W11 | — | 0.5 | OEM-C-15 | — | — | — |
| 1 | — | — | W12 | — | 0.5 | OEM-C-16 | — | — | — |
| 1 | — | — | W13 | — | 0.5 | SL8-B-10 | — | — | — |
| 1 | — | — | W16 | — | 0.5 | SL8-B-6 | — | — | — |
| 1 | — | — | W18 | — | 0.5 | SL8-B-8 | — | — | — |
SP-14V
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W1 | — | 0.85 | OEM-A-12 | — | — | — |
| 1 | — | — | W2 | — | 0.85 | OEM-A-13 | — | — | — |
| 1 | — | — | W3 | — | 0.85 | SL8-A-34 | — | — | — |
| 1 | — | — | W4 | — | 0.85 | SL8-B-1 | — | — | — |
SP-GND
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W5 | — | 0.85 | OEM-A-22 | — | — | — |
| 1 | — | — | W6 | — | 0.85 | OEM-D-13 | — | — | — |
| 1 | — | — | W7 | — | 0.85 | OEM-D-26 | — | — | — |
| 1 | — | — | W8 | — | 0.85 | SL8-B-18 | — | — | — |
| 1 | — | — | W9 | — | 0.85 | SL8-B-26 | — | — | — |
Pin map
| OEM point | OEM function | OEM family | Target point | Target function | Target family | Wire colour | Evidence |
|---|---|---|---|---|---|---|---|
| OEM-A-1 | Ignition switch (IGSW) | digital_in | SL8-B-4 | Ignition switch input | digital_in | single_source | |
| OEM-A-11 | Sensor supply +5V (VC) | vref | SL8-B-2 | Sensor supply Vref1 5.0V | vref | single_source | |
| OEM-A-12 | EFI main relay (B+) | power_in | SL8-A-34 + SL8-B-1 | Aux 9–10 14V supply + ECU 14V supply | power_in | single_source | |
| OEM-A-13 | EFI main relay (B1+) | power_in | SL8-A-34 + SL8-B-1 | Aux 9–10 14V supply + ECU 14V supply | power_in | single_source | |
| OEM-A-14 | Neutral start switch (NSW) | digital_in | SL8-A-25 | Digital input 6 | digital_in | single_source | |
| OEM-A-16 | Intake air temperature (THA) | temp_in | SL8-B-20 | Analog input 7 (switchable 1k pull-up) | analog_in | single_source | |
| OEM-A-17 | O2 right front (OXR1) | lambda_nb_in | SL8-B-13 | Analog input 3 | analog_in | single_source | |
| OEM-A-18 | Sensor ground (E2) | sensor_ground | SL8-B-10 + SL8-B-6 + SL8-B-8 | Analog sensor 0V reference + Crank index sensor − + Sync sensor − | sensor_ground + trigger_in | single_source | |
| OEM-A-19 | Vehicle speed (SPD) | digital_in | SL8-A-22 | Digital input 3 | digital_in | single_source | |
| OEM-A-2 | Starter signal (STA) | digital_in | SL8-B-22 | Analog input 9 (switchable 1k pull-up) | analog_in | single_source | |
| OEM-A-20 | Diagnostic test 2 (TE2) | digital_in | SL8-A-24 | Digital input 5 | digital_in | single_source | |
| OEM-A-22 | Power ground (E1) | ground | SL8-B-18 + SL8-B-26 | ECU ground + ECU ground | ground | single_source | |
| OEM-A-4 | Throttle position (VTA1) | analog_in | SL8-B-11 | Analog input 1 | analog_in | single_source | |
| OEM-A-5 | Coolant temperature (THW) | temp_in | SL8-B-12 | Analog input 2 | analog_in | single_source | |
| OEM-A-6 | O2 left front (OXL1) | lambda_nb_in | SL8-B-14 | Analog input 4 | analog_in | single_source | |
| OEM-A-7 | EGR temperature sensor | temp_in | SL8-B-21 | Analog input 8 (switchable 1k pull-up) | analog_in | single_source | |
| OEM-A-8 | Knock/shield (KS) | knock_in | — | — | — | single_source | |
| OEM-A-9 | Diagnostic test 1 (TE1) | digital_in | SL8-A-23 | Digital input 4 | digital_in | single_source | |
| OEM-B-11 | O2 right rear (OXR2) | lambda_nb_in | SL8-B-15 | Analog input 5 | analog_in | single_source | |
| OEM-B-19 | Stop light switch (BK) | digital_in | SL8-B-23 | Analog input 10 (switchable 1k pull-up) | analog_in | single_source | |
| OEM-B-20 | A/T kickdown switch (KD) | digital_in | — | — | — | single_source | |
| OEM-B-23 | A/C request (AC) | digital_in | — | — | — | single_source | |
| OEM-B-24 | O2 left rear (OXL2) | lambda_nb_in | SL8-B-19 | Analog input 6 | analog_in | single_source | |
| OEM-B-26 | Battery constant (BATT) | power_in | — | — | — | single_source | |
| OEM-B-4 | EFI main relay control (MREL) | low_side_out | SL8-B-3 | EFI relay output (low side, 200 mA) | low_side_out | single_source | |
| OEM-B-5 | Check-engine lamp (W) | low_side_out | SL8-A-6 | Injection channel 6 | injector_out | single_source | |
| OEM-B-6 | Fuel pump relay (FPR) | low_side_out | SL8-A-14 | Auxiliary output 5 | switch_out | single_source | |
| OEM-B-7 | A/C clutch relay (ACMG) | low_side_out | SL8-A-15 | Auxiliary output 6 | switch_out | single_source | |
| OEM-B-8 | Fuel pump control (FC) | low_side_out | SL8-A-7 | Injection channel 7 | injector_out | single_source | |
| OEM-C-1 | TPS idle switch (IDL) | digital_in | — | — | — | single_source | |
| OEM-C-10 | Igniter 2 feedback (IGF2) | digital_in | SL8-A-21 | Digital input 2 | digital_in | single_source | |
| OEM-C-11 | Knock sensor 2 (KNK2) | knock_in | SL8-B-24 | Knock 2 + | knock_in | single_source | |
| OEM-C-12 | Check connector VF2 | analog_out | — | — | — | single_source | |
| OEM-C-13 | Ignition 2 (IGT2) | ignition_out | SL8-A-27 | Ignition channel 2 | ignition_out | single_source | |
| OEM-C-15 | Cam sensor ground (G-) | sensor_ground | SL8-B-10 + SL8-B-6 + SL8-B-8 | Analog sensor 0V reference + Crank index sensor − + Sync sensor − | sensor_ground + trigger_in | single_source | |
| OEM-C-16 | Crank sensor - (NE-) | sensor_ground | SL8-B-10 + SL8-B-6 + SL8-B-8 | Analog sensor 0V reference + Crank index sensor − + Sync sensor − | sensor_ground + trigger_in | single_source | |
| OEM-C-2 | Igniter 1 feedback (IGF1) | digital_in | SL8-A-20 | Digital input 1 | digital_in | single_source | |
| OEM-C-3 | Knock sensor 1 (KNK1) | knock_in | SL8-B-16 | Knock 1 + | knock_in | single_source | |
| OEM-C-4 | Check connector VF1 | analog_out | — | — | — | single_source | |
| OEM-C-5 | Ignition 1 (IGT1) | ignition_out | SL8-A-26 | Ignition channel 1 | ignition_out | single_source | |
| OEM-C-6 | Cam sensor 2 + (G2+) | trigger_in | — | — | — | single_source | |
| OEM-C-7 | Cam sensor 1 + (G1+) | trigger_in | SL8-B-7 | Sync sensor + | trigger_in | single_source | |
| OEM-C-8 | Crank sensor + (NE+) | trigger_in | SL8-B-5 | Crank index sensor + | trigger_in | single_source | |
| OEM-D-11 | Injector 2&8 (#20) | injector_out | SL8-A-2 | Injection channel 2 | injector_out | single_source | |
| OEM-D-12 | Injector 1&7 (#10) | injector_out | SL8-A-1 | Injection channel 1 | injector_out | single_source | |
| OEM-D-13 | Power ground (E01) | ground | SL8-B-18 + SL8-B-26 | ECU ground + ECU ground | ground | single_source | |
| OEM-D-17 | Cold start injector 1 (STJ1) | low_side_out | SL8-A-10 | Auxiliary output 1 | switch_out | single_source | |
| OEM-D-19 | O2 heater 2 (HT2) | low_side_out | SL8-A-16 | Auxiliary output 7 | switch_out | single_source | |
| OEM-D-20 | O2 heater 1 (HT1) | low_side_out | SL8-A-17 | Auxiliary output 8 | switch_out | single_source | |
| OEM-D-21 | EGR solenoid | low_side_out | SL8-A-8 | Injection channel 8 | injector_out | single_source | |
| OEM-D-22 | Fuel pressure-up VSV (PR) | low_side_out | — | — | — | single_source | |
| OEM-D-24 | Injector 3&5 (#40) | injector_out | SL8-A-3 | Injection channel 3 | injector_out | single_source | |
| OEM-D-25 | Injector 4&6 (#30) | injector_out | SL8-A-4 | Injection channel 4 | injector_out | single_source | |
| OEM-D-26 | Power ground (E02) | ground | SL8-B-18 + SL8-B-26 | ECU ground + ECU ground | ground | single_source | |
| OEM-D-4 | Cold start injector (STJ) | low_side_out | — | — | — | single_source | |
| OEM-D-5 | ISC stepper coil 4 (ISC4) | low_side_out | SL8-A-5 | Injection channel 5 | injector_out | single_source | |
| OEM-D-6 | ISC stepper coil 3 (ISC3) | low_side_out | SL8-A-13 | Auxiliary output 4 | switch_out | single_source | |
| OEM-D-7 | ISC stepper coil 2 (ISC2) | low_side_out | SL8-A-12 | Auxiliary output 3 | switch_out | single_source | |
| OEM-D-8 | ISC stepper coil 1 (ISC1) | low_side_out | SL8-A-11 | Auxiliary output 2 | switch_out | single_source |
Cut list
| Wire | From | To | Gauge (mm²) | Colour | Length | Signal | Ident |
|---|---|---|---|---|---|---|---|
| W1 | OEM-A-12 | SP-14V-1 | 0.85 | no route | EFI main relay (B+) | — | |
| W2 | OEM-A-13 | SP-14V-1 | 0.85 | no route | EFI main relay (B1+) | — | |
| W3 | SP-14V-1 | SL8-A-34 | 0.85 | no route | Aux 9–10 14V supply | — | |
| W4 | SP-14V-1 | SL8-B-1 | 0.85 | no route | ECU 14V supply | — | |
| W5 | OEM-A-22 | SP-GND-1 | 0.85 | no route | Power ground (E1) | — | |
| W6 | OEM-D-13 | SP-GND-1 | 0.85 | no route | Power ground (E01) | — | |
| W7 | OEM-D-26 | SP-GND-1 | 0.85 | no route | Power ground (E02) | — | |
| W8 | SP-GND-1 | SL8-B-18 | 0.85 | no route | ECU ground | — | |
| W9 | SP-GND-1 | SL8-B-26 | 0.85 | no route | ECU ground | — | |
| W10 | OEM-A-18 | SP-0V-1 | 0.5 | no route | Sensor ground (E2) | — | |
| W11 | OEM-C-15 | SP-0V-1 | 0.5 | no route | Cam sensor ground (G-) | — | |
| W12 | OEM-C-16 | SP-0V-1 | 0.5 | no route | Crank sensor - (NE-) | — | |
| W13 | SP-0V-1 | SL8-B-10 | 0.5 | no route | Analog sensor 0V reference | — | |
| W14 | OEM-A-11 | SL8-B-2 | 0.5 | no route | Sensor supply +5V (VC) | — | |
| W15 | OEM-C-8 | SL8-B-5 | 0.5 | no route | Crank sensor + (NE+) | — | |
| W16 | SP-0V-1 | SL8-B-6 | 0.5 | no route | Crank index sensor − | — | |
| W17 | OEM-C-7 | SL8-B-7 | 0.5 | no route | Cam sensor 1 + (G1+) | — | |
| W18 | SP-0V-1 | SL8-B-8 | 0.5 | no route | Sync sensor − | — | |
| W19 | OEM-C-3 | SL8-B-16 | 0.5 | no route | Knock sensor 1 (KNK1) | — | |
| W20 | OEM-C-11 | SL8-B-24 | 0.5 | no route | Knock sensor 2 (KNK2) | — | |
| W21 | OEM-C-5 | SL8-A-26 | 0.5 | no route | Ignition 1 (IGT1) | — | |
| W22 | OEM-C-13 | SL8-A-27 | 0.5 | no route | Ignition 2 (IGT2) | — | |
| W23 | OEM-D-12 | SL8-A-1 | 0.5 | no route | Injector 1&7 (#10) | — | |
| W24 | OEM-D-11 | SL8-A-2 | 0.5 | no route | Injector 2&8 (#20) | — | |
| W25 | OEM-D-24 | SL8-A-3 | 0.5 | no route | Injector 3&5 (#40) | — | |
| W26 | OEM-D-25 | SL8-A-4 | 0.5 | no route | Injector 4&6 (#30) | — | |
| W27 | OEM-A-1 | SL8-B-4 | 0.5 | no route | Ignition switch (IGSW) | — | |
| W28 | OEM-A-4 | SL8-B-11 | 0.5 | no route | Throttle position (VTA1) | — | |
| W29 | OEM-A-5 | SL8-B-12 | 0.5 | no route | Coolant temperature (THW) | — | |
| W30 | OEM-B-4 | SL8-B-3 | 0.5 | no route | EFI main relay control (MREL) | — | |
| W31 | OEM-B-6 | SL8-A-14 | 0.5 | no route | Fuel pump relay (FPR) | — | |
| W32 | OEM-B-7 | SL8-A-15 | 0.5 | no route | A/C clutch relay (ACMG) | — | |
| W33 | OEM-D-19 | SL8-A-16 | 0.5 | no route | O2 heater 2 (HT2) | — | |
| W34 | OEM-D-20 | SL8-A-17 | 0.5 | no route | O2 heater 1 (HT1) | — | |
| W35 | OEM-D-17 | SL8-A-10 | 0.5 | no route | Cold start injector 1 (STJ1) | — | |
| W36 | OEM-D-8 | SL8-A-11 | 0.5 | no route | ISC stepper coil 1 (ISC1) | — | |
| W37 | OEM-D-7 | SL8-A-12 | 0.5 | no route | ISC stepper coil 2 (ISC2) | — | |
| W38 | OEM-D-6 | SL8-A-13 | 0.5 | no route | ISC stepper coil 3 (ISC3) | — | |
| W39 | OEM-D-5 | SL8-A-5 | 0.5 | no route | ISC stepper coil 4 (ISC4) | — | |
| W40 | OEM-B-5 | SL8-A-6 | 0.5 | no route | Check-engine lamp (W) | — | |
| W41 | OEM-B-8 | SL8-A-7 | 0.5 | no route | Fuel pump control (FC) | — | |
| W42 | OEM-D-21 | SL8-A-8 | 0.5 | no route | EGR solenoid | — | |
| W43 | OEM-A-17 | SL8-B-13 | 0.5 | no route | O2 right front (OXR1) | — | |
| W44 | OEM-A-6 | SL8-B-14 | 0.5 | no route | O2 left front (OXL1) | — | |
| W45 | OEM-B-11 | SL8-B-15 | 0.5 | no route | O2 right rear (OXR2) | — | |
| W46 | OEM-B-24 | SL8-B-19 | 0.5 | no route | O2 left rear (OXL2) | — | |
| W47 | OEM-A-16 | SL8-B-20 | 0.5 | no route | Intake air temperature (THA) | — | |
| W48 | OEM-A-7 | SL8-B-21 | 0.5 | no route | EGR temperature sensor | — | |
| W49 | OEM-C-2 | SL8-A-20 | 0.5 | no route | Igniter 1 feedback (IGF1) | — | |
| W50 | OEM-C-10 | SL8-A-21 | 0.5 | no route | Igniter 2 feedback (IGF2) | — | |
| W51 | OEM-A-19 | SL8-A-22 | 0.5 | no route | Vehicle speed (SPD) | — | |
| W52 | OEM-A-9 | SL8-A-23 | 0.5 | no route | Diagnostic test 1 (TE1) | — | |
| W53 | OEM-A-20 | SL8-A-24 | 0.5 | no route | Diagnostic test 2 (TE2) | — | |
| W54 | OEM-A-14 | SL8-A-25 | 0.5 | no route | Neutral start switch (NSW) | — | |
| W55 | OEM-A-2 | SL8-B-22 | 0.5 | no route | Starter signal (STA) | — | |
| W56 | OEM-B-19 | SL8-B-23 | 0.5 | no route | Stop light switch (BK) | — |
Bill of materials
| Category | Part number | Manufacturer | Description | Qty | Unit |
|---|---|---|---|---|---|
| connector | 4-1437290-0 | TE | Superseal 1.0 34-way plug, Key 1 | 1.000 | ea |
| connector | 4-1437290-1 | TE | Superseal 1.0 34-way plug, Key 2 | 1.000 | ea |
| terminal | 3-1447221-4 | TE | Superseal 1.0 socket terminal, 20 AWG (0.5 sq mm) | 48.000 | ea |
ECU setup sheet
| Role | Engine ref | Engine signal | Sensor | ECU point | ECU function | ECU class | Setup flag |
|---|---|---|---|---|---|---|---|
| No configured channels. | |||||||
Findings
Open (20)
| Severity | Code | Subject | Message |
|---|---|---|---|
| error | REQUIRED_UNMAPPED | OEM-C-6 | Required OEM function "Cam sensor 2 + (G2+)" (trigger_in) is not connected to the new ECU. |
| warn | NET_FAMILY | OEM-A-2 ↔ SL8-B-22 | OEM-A-2 "Starter signal (STA)" [digital_in] is wired to SL8-B-22 "Analog input 9 (switchable 1k pull-up)" [analog_in]. Analog and digital on one net. A switch on an analog input works with a pull-up and a threshold; an analog sensor on a digital input loses its value. |
| warn | NET_FAMILY | OEM-B-19 ↔ SL8-B-23 | OEM-B-19 "Stop light switch (BK)" [digital_in] is wired to SL8-B-23 "Analog input 10 (switchable 1k pull-up)" [analog_in]. Analog and digital on one net. A switch on an analog input works with a pull-up and a threshold; an analog sensor on a digital input loses its value. |
| info | NET_FAMILY | OEM-A-16 ↔ SL8-B-20 | OEM-A-16 "Intake air temperature (THA)" [temp_in] is wired to SL8-B-20 "Analog input 7 (switchable 1k pull-up)" [analog_in]. Thermistor on a plain analog input needs a pull-up; check the channel can enable one. |
| info | NET_FAMILY | OEM-A-5 ↔ SL8-B-12 | OEM-A-5 "Coolant temperature (THW)" [temp_in] is wired to SL8-B-12 "Analog input 2" [analog_in]. Thermistor on a plain analog input needs a pull-up; check the channel can enable one. |
| info | NET_FAMILY | OEM-A-7 ↔ SL8-B-21 | OEM-A-7 "EGR temperature sensor" [temp_in] is wired to SL8-B-21 "Analog input 8 (switchable 1k pull-up)" [analog_in]. Thermistor on a plain analog input needs a pull-up; check the channel can enable one. |
| info | NET_FAMILY | OEM-B-5 ↔ SL8-A-6 | OEM-B-5 "Check-engine lamp (W)" [low_side_out] is wired to SL8-A-6 "Injection channel 6" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | NET_FAMILY | OEM-B-6 ↔ SL8-A-14 | OEM-B-6 "Fuel pump relay (FPR)" [low_side_out] is wired to SL8-A-14 "Auxiliary output 5" [switch_out]. Configure this output as low side. |
| info | NET_FAMILY | OEM-B-7 ↔ SL8-A-15 | OEM-B-7 "A/C clutch relay (ACMG)" [low_side_out] is wired to SL8-A-15 "Auxiliary output 6" [switch_out]. Configure this output as low side. |
| info | NET_FAMILY | OEM-B-8 ↔ SL8-A-7 | OEM-B-8 "Fuel pump control (FC)" [low_side_out] is wired to SL8-A-7 "Injection channel 7" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | NET_FAMILY | OEM-D-17 ↔ SL8-A-10 | OEM-D-17 "Cold start injector 1 (STJ1)" [low_side_out] is wired to SL8-A-10 "Auxiliary output 1" [switch_out]. Configure this output as low side. |
| info | NET_FAMILY | OEM-D-19 ↔ SL8-A-16 | OEM-D-19 "O2 heater 2 (HT2)" [low_side_out] is wired to SL8-A-16 "Auxiliary output 7" [switch_out]. Configure this output as low side. |
| info | NET_FAMILY | OEM-D-20 ↔ SL8-A-17 | OEM-D-20 "O2 heater 1 (HT1)" [low_side_out] is wired to SL8-A-17 "Auxiliary output 8" [switch_out]. Configure this output as low side. |
| info | NET_FAMILY | OEM-D-21 ↔ SL8-A-8 | OEM-D-21 "EGR solenoid" [low_side_out] is wired to SL8-A-8 "Injection channel 8" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | NET_FAMILY | OEM-D-5 ↔ SL8-A-5 | OEM-D-5 "ISC stepper coil 4 (ISC4)" [low_side_out] is wired to SL8-A-5 "Injection channel 5" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | NET_FAMILY | OEM-D-6 ↔ SL8-A-13 | OEM-D-6 "ISC stepper coil 3 (ISC3)" [low_side_out] is wired to SL8-A-13 "Auxiliary output 4" [switch_out]. Configure this output as low side. |
| info | NET_FAMILY | OEM-D-7 ↔ SL8-A-12 | OEM-D-7 "ISC stepper coil 2 (ISC2)" [low_side_out] is wired to SL8-A-12 "Auxiliary output 3" [switch_out]. Configure this output as low side. |
| info | NET_FAMILY | OEM-D-8 ↔ SL8-A-11 | OEM-D-8 "ISC stepper coil 1 (ISC1)" [low_side_out] is wired to SL8-A-11 "Auxiliary output 2" [switch_out]. Configure this output as low side. |
| info | NET_FAMILY | SL8-B-6 ↔ SL8-B-10 | SL8-B-6 "Crank index sensor −" [trigger_in] is wired to SL8-B-10 "Analog sensor 0V reference" [sensor_ground]. Trigger return tied to sensor/trigger ground: correct for single-ended trigger inputs. |
| info | UNMAPPED | OEM | 8 optional OEM pins are not mapped: OEM-A-8 Knock/shield (KS); OEM-B-20 A/T kickdown switch (KD); OEM-B-23 A/C request (AC); OEM-C-1 TPS idle switch (IDL); OEM-C-12 Check connector VF2; OEM-C-4 Check connector VF1; OEM-D-22 Fuel pressure-up VSV (PR); OEM-D-4 Cold start injector (STJ) |
Accepted (1)
| Code | Subject | Reason | By |
|---|---|---|---|
| REQUIRED_UNMAPPED | OEM-B-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 2026-10-11. Review every wire against both manuals before building. Open items: - OEM-C 6: Cam sensor 2 + (G2+): no free cam_vr/cam_hall/frequency_in input on Emtron SL8 Not wired: - OEM-B 26: Battery constant (BATT): Emtron SL8 has no battery-constant input; not needed - SL8-B 17: Knock 1 − left open: the stock knock sensor has one ECU wire; check the ECU manual for single-wire knock sensors - SL8-B 25: Knock 2 − left open: the stock knock sensor has one ECU wire; check the ECU manual for single-wire knock sensors - OEM-A 8: Knock/shield (KS): no free knock input on Emtron SL8 - OEM-D 22: Fuel pressure-up VSV (PR): no free low_side/relay_control/heater_low_side/ls_hs/injector on Emtron SL8 - OEM-D 4: Cold start injector (STJ): no free low_side/relay_control/heater_low_side/ls_hs/injector on Emtron SL8 - OEM-B 20: A/T kickdown switch (KD): no free switch_in/frequency_in/analog_0_5 on Emtron SL8 - OEM-B 23: A/C request (AC): no free switch_in/frequency_in/analog_0_5 on Emtron SL8 - OEM-C 1: TPS idle switch (IDL): no free switch_in/frequency_in/analog_0_5 on Emtron SL8 - OEM-C 4: Check connector VF1: no free analog_out on Emtron SL8 - OEM-C 12: Check connector VF2: no free analog_out on Emtron SL8
Sources
| Reliability | Kind | Title | URL | Archive | Captured | SHA-256 |
|---|---|---|---|---|---|---|
| 4 | vendor_doc | Emtron SL4/SL6/SL8 ECU datasheets | https://docs.emtronaustralia.com.au/engine-management/datasheets/index.html | archive | 2026-10-05 | 1e22846cec94 |
| 4 | vendor_doc | Emtron SL4/SL6/SL8 pinout pages | https://docs.emtronaustralia.com.au/engine-management/wiring/index.html | archive | 2026-10-05 | e52b3da9996a |
| 2 | community_copy | Lextreme: Adaptronic install for 1UZ-FE (Lexus LS400/SC400) — 4-plug A/B/C/D ECU pin table (1992 LS400) | https://www.lextreme.com/installation-of-an-adaptronic-ecu-for-a-lexus-ls400-sc400-1uzfe-engine/ | — | — | — |