Lexus SC400 1992-97 (1UZ-FE non-VVTi) → Emtron KV8 (auto)
Lexus SC400 1992-97 (1UZ-FE non-VVTi) — Emtron — KV8
⚠ NOT CHECKED. Don't build from this.
Drawn by Michael Gnankou · Rev 0 · draft · 2026-10-11
Before you start
Not confident with automotive wiring? Have a professional harness builder or tuner do it, or check your work before first power-up. A wiring mistake can damage the ECU, the engine or the car, or start a fire.
| Status | draft · not yet verified: nobody has reported building and running this harness |
|---|---|
| Open errors | 1: read the Findings page before cutting any wire |
| Size of the job | 66 wires · 11 connectors · 5 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 | KV8-D-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W4 | SP-14V-1 | KV8-D-2 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W5 | SP-14V-1 | KV8-D-20 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W6 | OEM-A-22 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W7 | OEM-D-13 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W8 | OEM-D-26 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W9 | SP-GND-1 | KV8-B-34 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W10 | SP-GND-1 | KV8-B-9 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W11 | SP-GND-1 | KV8-C-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W12 | SP-GND-1 | KV8-C-26 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W13 | OEM-A-18 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W14 | OEM-C-15 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W15 | OEM-C-16 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W16 | SP-0V-1 | KV8-C-17 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W17 | SP-0V-1 | KV8-C-25 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W18 | OEM-A-11 | KV8-D-21 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W19 | OEM-C-8 | KV8-D-4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W20 | SP-0V-1 | KV8-D-5 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W21 | OEM-C-7 | KV8-D-6 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W22 | SP-0V-1 | KV8-D-7 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W23 | OEM-C-3 | KV8-D-11 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W24 | OEM-C-11 | KV8-D-17 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W25 | OEM-C-5 | KV8-B-26 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W26 | OEM-C-13 | KV8-B-27 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W27 | OEM-D-12 | KV8-B-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W28 | OEM-D-11 | KV8-B-2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W29 | OEM-D-24 | KV8-B-3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W30 | OEM-D-25 | KV8-B-4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W31 | OEM-A-1 | KV8-D-15 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W32 | OEM-A-4 | KV8-C-2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W33 | OEM-A-5 | KV8-C-3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W34 | OEM-B-4 | KV8-D-9 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W35 | OEM-B-6 | KV8-B-14 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W36 | OEM-B-7 | KV8-B-15 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W37 | OEM-D-19 | KV8-A-10 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W38 | OEM-D-20 | KV8-A-11 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W39 | OEM-D-17 | KV8-B-16 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W40 | OEM-D-8 | KV8-B-17 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W41 | OEM-D-7 | KV8-B-10 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W42 | OEM-D-6 | KV8-B-11 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W43 | OEM-D-5 | KV8-B-12 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W44 | OEM-B-5 | KV8-B-13 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W45 | OEM-B-8 | KV8-B-5 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W46 | OEM-D-21 | KV8-B-6 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W47 | OEM-D-22 | KV8-B-7 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W48 | OEM-D-4 | KV8-B-8 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W49 | OEM-A-17 | KV8-C-4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W50 | OEM-A-6 | KV8-C-5 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W51 | OEM-B-11 | KV8-C-6 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W52 | OEM-B-24 | KV8-C-7 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W53 | OEM-A-16 | KV8-C-8 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W54 | OEM-A-7 | KV8-C-9 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W55 | OEM-C-2 | KV8-C-27 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W56 | OEM-C-10 | KV8-C-28 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W57 | OEM-A-19 | KV8-C-29 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W58 | OEM-A-9 | KV8-C-30 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W59 | OEM-A-20 | KV8-C-31 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W60 | OEM-A-14 | KV8-C-32 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W61 | OEM-A-2 | KV8-C-33 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W62 | OEM-B-19 | KV8-C-34 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W63 | OEM-B-20 | KV8-C-18 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W64 | OEM-B-23 | KV8-C-19 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W65 | OEM-C-1 | KV8-C-20 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W66 | OEM-C-4 | KV8-D-19 | 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 | KV8-D-1 | KV8-B-34 | open (OL) | +12 V supply must not touch power ground | |
| 2 | KV8-D-1 | KV8-C-17 | open (OL) | +12 V supply must not touch sensor ground | |
| 3 | KV8-D-21 | KV8-B-34 | open (OL) | 5 V sensor reference must not touch power ground | |
| 4 | KV8-D-21 | KV8-C-17 | open (OL) | 5 V sensor reference must not touch sensor ground | |
| 5 | KV8-D-21 | KV8-D-1 | 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
KV8-A
Mating face
Wire side
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | — | — | — | — | — | — | — |
| 2 | — | — | — | — | — | — | — | — | — |
| 3 | — | — | — | — | — | — | — | — | — |
| 4 | — | — | — | — | — | — | — | — | — |
| 5 | — | — | — | — | — | — | — | — | — |
| 6 | — | — | — | — | — | — | — | — | — |
| 7 | — | — | — | — | — | — | — | — | — |
| 8 | — | — | — | — | — | — | — | — | — |
| 9 | — | — | — | — | — | — | — | — | — |
| 10 | Lambda 1 heater − | — | W37 | — | 0.5 | OEM-D-19 | — | — | — |
| 11 | Lambda 2 heater − | — | W38 | — | 0.5 | OEM-D-20 | — | — | — |
| 12 | — | — | — | — | — | — | — | — | — |
| 13 | — | — | — | — | — | — | — | — | — |
| 14 | — | — | — | — | — | — | — | — | — |
| 15 | — | — | — | — | — | — | — | — | — |
| 16 | Lambda 1 heater + | — | — | — | — | — | — | — | — |
| 17 | Lambda 2 heater + | — | — | — | — | — | — | — | — |
| 18 | Lambda 1 Nernst cell (Vs) | — | — | — | — | — | — | — | — |
| 19 | — | — | — | — | — | — | — | — | — |
| 20 | Lambda 2 cal resistor | — | — | — | — | — | — | — | — |
| 21 | Lambda 2 Nernst cell (Vs) | — | — | — | — | — | — | — | — |
| 22 | Lambda 2 pump cell (Ip) | — | — | — | — | — | — | — | — |
| 23 | Lambda 2 virtual ground | — | — | — | — | — | — | — | — |
| 24 | Lambda 1 cal resistor | — | — | — | — | — | — | — | — |
| 25 | Lambda 1 pump cell (Ip) | — | — | — | — | — | — | — | — |
| 26 | Lambda 1 virtual ground | — | — | — | — | — | — | — | — |
KV8-B
Mating face
Wire side
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Injection 1 | — | W27 | — | 0.5 | OEM-D-12 | — | — | — |
| 2 | Injection 2 | — | W28 | — | 0.5 | OEM-D-11 | — | — | — |
| 3 | Injection 3 | — | W29 | — | 0.5 | OEM-D-24 | — | — | — |
| 4 | Injection 4 | — | W30 | — | 0.5 | OEM-D-25 | — | — | — |
| 5 | Injection 5 | — | W45 | — | 0.5 | OEM-B-8 | — | — | — |
| 6 | Injection 6 | — | W46 | — | 0.5 | OEM-D-21 | — | — | — |
| 7 | Injection 7 | — | W47 | — | 0.5 | OEM-D-22 | — | — | — |
| 8 | Injection 8 | — | W48 | — | 0.5 | OEM-D-4 | — | — | — |
| 9 | ECU ground | — | W10 | — | 0.85 | SP-GND-1 | — | — | — |
| 10 | Aux 1 | — | W41 | — | 0.5 | OEM-D-7 | — | — | — |
| 11 | Aux 2 | — | W42 | — | 0.5 | OEM-D-6 | — | — | — |
| 12 | Aux 3 | — | W43 | — | 0.5 | OEM-D-5 | — | — | — |
| 13 | Aux 4 | — | W44 | — | 0.5 | OEM-B-5 | — | — | — |
| 14 | Aux 5 | — | W35 | — | 0.5 | OEM-B-6 | — | — | — |
| 15 | Aux 6 | — | W36 | — | 0.5 | OEM-B-7 | — | — | — |
| 16 | Aux 7 | — | W39 | — | 0.5 | OEM-D-17 | — | — | — |
| 17 | Aux 8 | — | W40 | — | 0.5 | OEM-D-8 | — | — | — |
| 18 | Aux 9 | — | — | — | — | — | — | — | — |
| 19 | Aux 10 | — | — | — | — | — | — | — | — |
| 20 | Aux 11 | — | — | — | — | — | — | — | — |
| 21 | Aux 12 | — | — | — | — | — | — | — | — |
| 22 | Aux 13 | — | — | — | — | — | — | — | — |
| 23 | Aux 14 | — | — | — | — | — | — | — | — |
| 24 | Aux 15 | — | — | — | — | — | — | — | — |
| 25 | Aux 16 | — | — | — | — | — | — | — | — |
| 26 | Ignition 1 | — | W25 | — | 0.5 | OEM-C-5 | — | — | — |
| 27 | Ignition 2 | — | W26 | — | 0.5 | OEM-C-13 | — | — | — |
| 28 | Ignition 3 | — | — | — | — | — | — | — | — |
| 29 | Ignition 4 | — | — | — | — | — | — | — | — |
| 30 | Ignition 5 | — | — | — | — | — | — | — | — |
| 31 | Ignition 6 | — | — | — | — | — | — | — | — |
| 32 | Ignition 7 | — | — | — | — | — | — | — | — |
| 33 | Ignition 8 | — | — | — | — | — | — | — | — |
| 34 | ECU ground | — | W9 | — | 0.85 | SP-GND-1 | — | — | — |
KV8-C
Mating face
Wire side
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | ECU ground | — | W11 | — | 0.85 | SP-GND-1 | — | — | — |
| 2 | Analog in 1 | — | W32 | — | 0.5 | OEM-A-4 | — | — | — |
| 3 | Analog in 2 | — | W33 | — | 0.5 | OEM-A-5 | — | — | — |
| 4 | Analog in 3 | — | W49 | — | 0.5 | OEM-A-17 | — | — | — |
| 5 | Analog in 4 | — | W50 | — | 0.5 | OEM-A-6 | — | — | — |
| 6 | Analog in 5 | — | W51 | — | 0.5 | OEM-B-11 | — | — | — |
| 7 | Analog in 6 | — | W52 | — | 0.5 | OEM-B-24 | — | — | — |
| 8 | Analog in 7 | — | W53 | — | 0.5 | OEM-A-16 | — | — | — |
| 9 | Analog in 8 | — | W54 | — | 0.5 | OEM-A-7 | — | — | — |
| 10 | Analog in 9 | — | — | — | — | — | — | — | — |
| 11 | Analog in 10 | — | — | — | — | — | — | — | — |
| 12 | Analog in 11 | — | — | — | — | — | — | — | — |
| 13 | Analog in 12 | — | — | — | — | — | — | — | — |
| 14 | Analog in 13 | — | — | — | — | — | — | — | — |
| 15 | Analog in 14 | — | — | — | — | — | — | — | — |
| 16 | Analog in 15 | — | — | — | — | — | — | — | — |
| 17 | Analog sensor 0V reference | — | W16 | — | 0.5 | SP-0V-1 | — | — | — |
| 18 | Digital in 9 | — | W63 | — | 0.5 | OEM-B-20 | — | — | — |
| 19 | Digital in 10 | — | W64 | — | 0.5 | OEM-B-23 | — | — | — |
| 20 | Digital in 11 | — | W65 | — | 0.5 | OEM-C-1 | — | — | — |
| 21 | Digital in 12 | — | — | — | — | — | — | — | — |
| 22 | Digital in 13 | — | — | — | — | — | — | — | — |
| 23 | Digital in 14 | — | — | — | — | — | — | — | — |
| 24 | Analog in 16 | — | — | — | — | — | — | — | — |
| 25 | Analog sensor 0V reference | — | W17 | — | 0.5 | SP-0V-1 | — | — | — |
| 26 | ECU ground | — | W12 | — | 0.85 | SP-GND-1 | — | — | — |
| 27 | Digital in 1 | — | W55 | — | 0.5 | OEM-C-2 | — | — | — |
| 28 | Digital in 2 | — | W56 | — | 0.5 | OEM-C-10 | — | — | — |
| 29 | Digital in 3 | — | W57 | — | 0.5 | OEM-A-19 | — | — | — |
| 30 | Digital in 4 | — | W58 | — | 0.5 | OEM-A-9 | — | — | — |
| 31 | Digital in 5 | — | W59 | — | 0.5 | OEM-A-20 | — | — | — |
| 32 | Digital in 6 | — | W60 | — | 0.5 | OEM-A-14 | — | — | — |
| 33 | Digital in 7 | — | W61 | — | 0.5 | OEM-A-2 | — | — | — |
| 34 | Digital in 8 | — | W62 | — | 0.5 | OEM-B-19 | — | — | — |
KV8-D
Mating face
Wire side
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | ECU 14V supply | — | W3 | — | 0.85 | SP-14V-1 | — | — | — |
| 2 | Aux 13–16 14V supply | — | W4 | — | 0.85 | SP-14V-1 | — | — | — |
| 3 | Sensor supply 8V | — | — | — | — | — | — | — | — |
| 4 | Crank index sensor + | — | W19 | — | 0.5 | OEM-C-8 | — | — | — |
| 5 | Crank index sensor − | — | W20 | — | 0.5 | SP-0V-1 | — | — | — |
| 6 | Sync sensor + | — | W21 | — | 0.5 | OEM-C-7 | — | — | — |
| 7 | Sync sensor − | — | W22 | — | 0.5 | SP-0V-1 | — | — | — |
| 8 | CAN 1 H | — | — | — | — | — | — | — | — |
| 9 | EFI relay output (low side, 200 mA) | — | W34 | — | 0.5 | OEM-B-4 | — | — | — |
| 10 | CAN 2 H | — | — | — | — | — | — | — | — |
| 11 | Knock 1 + | — | W23 | — | 0.5 | OEM-C-3 | — | — | — |
| 12 | Knock 1 − | — | — | — | — | — | — | — | — |
| 13 | Shield (crank/cam/knock) | — | — | — | — | — | — | — | — |
| 14 | CAN 1 L | — | — | — | — | — | — | — | — |
| 15 | Ignition switch input | — | W31 | — | 0.5 | OEM-A-1 | — | — | — |
| 16 | CAN 2 L | — | — | — | — | — | — | — | — |
| 17 | Knock 2 + | — | W24 | — | 0.5 | OEM-C-11 | — | — | — |
| 18 | Knock 2 − | — | — | — | — | — | — | — | — |
| 19 | Analog output 0–5V | — | W66 | — | 0.5 | OEM-C-4 | — | — | — |
| 20 | Aux 9–12 14V supply | — | W5 | — | 0.85 | SP-14V-1 | — | — | — |
| 21 | Sensor supply Vref1 5.0V | — | W18 | — | 0.5 | OEM-A-11 | — | — | — |
| 22 | Sensor supply Vref2 5.0V | — | — | — | — | — | — | — | — |
| 23 | Ethernet Tx+ | — | — | — | — | — | — | — | — |
| 24 | Ethernet Tx− | — | — | — | — | — | — | — | — |
| 25 | Ethernet Rx+ | — | — | — | — | — | — | — | — |
| 26 | Ethernet Rx− | — | — | — | — | — | — | — | — |
OEM-A
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Ignition switch (IGSW) | — | W31 | — | 0.5 | KV8-D-15 | — | — | — |
| 11 | Sensor supply +5V (VC) | — | W18 | — | 0.5 | KV8-D-21 | — | — | — |
| 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) | — | W60 | — | 0.5 | KV8-C-32 | — | — | — |
| 16 | Intake air temperature (THA) | — | W53 | — | 0.5 | KV8-C-8 | — | — | — |
| 17 | O2 right front (OXR1) | — | W49 | — | 0.5 | KV8-C-4 | — | — | — |
| 18 | Sensor ground (E2) | — | W13 | — | 0.5 | SP-0V-1 | — | — | — |
| 19 | Vehicle speed (SPD) | — | W57 | — | 0.5 | KV8-C-29 | — | — | — |
| 2 | Starter signal (STA) | — | W61 | — | 0.5 | KV8-C-33 | — | — | — |
| 20 | Diagnostic test 2 (TE2) | — | W59 | — | 0.5 | KV8-C-31 | — | — | — |
| 22 | Power ground (E1) | — | W6 | — | 0.85 | SP-GND-1 | — | — | — |
| 4 | Throttle position (VTA1) | — | W32 | — | 0.5 | KV8-C-2 | — | — | — |
| 5 | Coolant temperature (THW) | — | W33 | — | 0.5 | KV8-C-3 | — | — | — |
| 6 | O2 left front (OXL1) | — | W50 | — | 0.5 | KV8-C-5 | — | — | — |
| 7 | EGR temperature sensor | — | W54 | — | 0.5 | KV8-C-9 | — | — | — |
| 8 | Knock/shield (KS) | — | — | — | — | — | — | — | — |
| 9 | Diagnostic test 1 (TE1) | — | W58 | — | 0.5 | KV8-C-30 | — | — | — |
OEM-B
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 11 | O2 right rear (OXR2) | — | W51 | — | 0.5 | KV8-C-6 | — | — | — |
| 19 | Stop light switch (BK) | — | W62 | — | 0.5 | KV8-C-34 | — | — | — |
| 20 | A/T kickdown switch (KD) | — | W63 | — | 0.5 | KV8-C-18 | — | — | — |
| 23 | A/C request (AC) | — | W64 | — | 0.5 | KV8-C-19 | — | — | — |
| 24 | O2 left rear (OXL2) | — | W52 | — | 0.5 | KV8-C-7 | — | — | — |
| 26 | Battery constant (BATT) | — | — | — | — | — | — | — | — |
| 4 | EFI main relay control (MREL) | — | W34 | — | 0.5 | KV8-D-9 | — | — | — |
| 5 | Check-engine lamp (W) | — | W44 | — | 0.5 | KV8-B-13 | — | — | — |
| 6 | Fuel pump relay (FPR) | — | W35 | — | 0.5 | KV8-B-14 | — | — | — |
| 7 | A/C clutch relay (ACMG) | — | W36 | — | 0.5 | KV8-B-15 | — | — | — |
| 8 | Fuel pump control (FC) | — | W45 | — | 0.5 | KV8-B-5 | — | — | — |
OEM-C
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | TPS idle switch (IDL) | — | W65 | — | 0.5 | KV8-C-20 | — | — | — |
| 10 | Igniter 2 feedback (IGF2) | — | W56 | — | 0.5 | KV8-C-28 | — | — | — |
| 11 | Knock sensor 2 (KNK2) | — | W24 | — | 0.5 | KV8-D-17 | — | — | — |
| 12 | Check connector VF2 | — | — | — | — | — | — | — | — |
| 13 | Ignition 2 (IGT2) | — | W26 | — | 0.5 | KV8-B-27 | — | — | — |
| 15 | Cam sensor ground (G-) | — | W14 | — | 0.5 | SP-0V-1 | — | — | — |
| 16 | Crank sensor - (NE-) | — | W15 | — | 0.5 | SP-0V-1 | — | — | — |
| 2 | Igniter 1 feedback (IGF1) | — | W55 | — | 0.5 | KV8-C-27 | — | — | — |
| 3 | Knock sensor 1 (KNK1) | — | W23 | — | 0.5 | KV8-D-11 | — | — | — |
| 4 | Check connector VF1 | — | W66 | — | 0.5 | KV8-D-19 | — | — | — |
| 5 | Ignition 1 (IGT1) | — | W25 | — | 0.5 | KV8-B-26 | — | — | — |
| 6 | Cam sensor 2 + (G2+) | — | — | — | — | — | — | — | — |
| 7 | Cam sensor 1 + (G1+) | — | W21 | — | 0.5 | KV8-D-6 | — | — | — |
| 8 | Crank sensor + (NE+) | — | W19 | — | 0.5 | KV8-D-4 | — | — | — |
OEM-D
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 11 | Injector 2&8 (#20) | — | W28 | — | 0.5 | KV8-B-2 | — | — | — |
| 12 | Injector 1&7 (#10) | — | W27 | — | 0.5 | KV8-B-1 | — | — | — |
| 13 | Power ground (E01) | — | W7 | — | 0.85 | SP-GND-1 | — | — | — |
| 17 | Cold start injector 1 (STJ1) | — | W39 | — | 0.5 | KV8-B-16 | — | — | — |
| 19 | O2 heater 2 (HT2) | — | W37 | — | 0.5 | KV8-A-10 | — | — | — |
| 20 | O2 heater 1 (HT1) | — | W38 | — | 0.5 | KV8-A-11 | — | — | — |
| 21 | EGR solenoid | — | W46 | — | 0.5 | KV8-B-6 | — | — | — |
| 22 | Fuel pressure-up VSV (PR) | — | W47 | — | 0.5 | KV8-B-7 | — | — | — |
| 24 | Injector 3&5 (#40) | — | W29 | — | 0.5 | KV8-B-3 | — | — | — |
| 25 | Injector 4&6 (#30) | — | W30 | — | 0.5 | KV8-B-4 | — | — | — |
| 26 | Power ground (E02) | — | W8 | — | 0.85 | SP-GND-1 | — | — | — |
| 4 | Cold start injector (STJ) | — | W48 | — | 0.5 | KV8-B-8 | — | — | — |
| 5 | ISC stepper coil 4 (ISC4) | — | W43 | — | 0.5 | KV8-B-12 | — | — | — |
| 6 | ISC stepper coil 3 (ISC3) | — | W42 | — | 0.5 | KV8-B-11 | — | — | — |
| 7 | ISC stepper coil 2 (ISC2) | — | W41 | — | 0.5 | KV8-B-10 | — | — | — |
| 8 | ISC stepper coil 1 (ISC1) | — | W40 | — | 0.5 | KV8-B-17 | — | — | — |
SP-0V
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W13 | — | 0.5 | OEM-A-18 | — | — | — |
| 1 | — | — | W14 | — | 0.5 | OEM-C-15 | — | — | — |
| 1 | — | — | W15 | — | 0.5 | OEM-C-16 | — | — | — |
| 1 | — | — | W16 | — | 0.5 | KV8-C-17 | — | — | — |
| 1 | — | — | W17 | — | 0.5 | KV8-C-25 | — | — | — |
| 1 | — | — | W20 | — | 0.5 | KV8-D-5 | — | — | — |
| 1 | — | — | W22 | — | 0.5 | KV8-D-7 | — | — | — |
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 | KV8-D-1 | — | — | — |
| 1 | — | — | W4 | — | 0.85 | KV8-D-2 | — | — | — |
| 1 | — | — | W5 | — | 0.85 | KV8-D-20 | — | — | — |
SP-GND
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W6 | — | 0.85 | OEM-A-22 | — | — | — |
| 1 | — | — | W7 | — | 0.85 | OEM-D-13 | — | — | — |
| 1 | — | — | W8 | — | 0.85 | OEM-D-26 | — | — | — |
| 1 | — | — | W9 | — | 0.85 | KV8-B-34 | — | — | — |
| 1 | — | — | W10 | — | 0.85 | KV8-B-9 | — | — | — |
| 1 | — | — | W11 | — | 0.85 | KV8-C-1 | — | — | — |
| 1 | — | — | W12 | — | 0.85 | KV8-C-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 | KV8-D-15 | Ignition switch input | digital_in | single_source | |
| OEM-A-11 | Sensor supply +5V (VC) | vref | KV8-D-21 | Sensor supply Vref1 5.0V | vref | single_source | |
| OEM-A-12 | EFI main relay (B+) | power_in | KV8-D-1 + KV8-D-2 + KV8-D-20 | ECU 14V supply + Aux 13–16 14V supply + Aux 9–12 14V supply | power_in | single_source | |
| OEM-A-13 | EFI main relay (B1+) | power_in | KV8-D-1 + KV8-D-2 + KV8-D-20 | ECU 14V supply + Aux 13–16 14V supply + Aux 9–12 14V supply | power_in | single_source | |
| OEM-A-14 | Neutral start switch (NSW) | digital_in | KV8-C-32 | Digital in 6 | digital_in | single_source | |
| OEM-A-16 | Intake air temperature (THA) | temp_in | KV8-C-8 | Analog in 7 | analog_in | single_source | |
| OEM-A-17 | O2 right front (OXR1) | lambda_nb_in | KV8-C-4 | Analog in 3 | analog_in | single_source | |
| OEM-A-18 | Sensor ground (E2) | sensor_ground | KV8-C-17 + KV8-C-25 + KV8-D-5 + KV8-D-7 | Analog sensor 0V reference + Analog sensor 0V reference + Crank index sensor − + Sync sensor − | sensor_ground + trigger_in | single_source | |
| OEM-A-19 | Vehicle speed (SPD) | digital_in | KV8-C-29 | Digital in 3 | digital_in | single_source | |
| OEM-A-2 | Starter signal (STA) | digital_in | KV8-C-33 | Digital in 7 | digital_in | single_source | |
| OEM-A-20 | Diagnostic test 2 (TE2) | digital_in | KV8-C-31 | Digital in 5 | digital_in | single_source | |
| OEM-A-22 | Power ground (E1) | ground | KV8-B-34 + KV8-B-9 + KV8-C-1 + KV8-C-26 | ECU ground + ECU ground + ECU ground + ECU ground | ground | single_source | |
| OEM-A-4 | Throttle position (VTA1) | analog_in | KV8-C-2 | Analog in 1 | analog_in | single_source | |
| OEM-A-5 | Coolant temperature (THW) | temp_in | KV8-C-3 | Analog in 2 | analog_in | single_source | |
| OEM-A-6 | O2 left front (OXL1) | lambda_nb_in | KV8-C-5 | Analog in 4 | analog_in | single_source | |
| OEM-A-7 | EGR temperature sensor | temp_in | KV8-C-9 | Analog in 8 | analog_in | single_source | |
| OEM-A-8 | Knock/shield (KS) | knock_in | — | — | — | single_source | |
| OEM-A-9 | Diagnostic test 1 (TE1) | digital_in | KV8-C-30 | Digital in 4 | digital_in | single_source | |
| OEM-B-11 | O2 right rear (OXR2) | lambda_nb_in | KV8-C-6 | Analog in 5 | analog_in | single_source | |
| OEM-B-19 | Stop light switch (BK) | digital_in | KV8-C-34 | Digital in 8 | digital_in | single_source | |
| OEM-B-20 | A/T kickdown switch (KD) | digital_in | KV8-C-18 | Digital in 9 | digital_in | single_source | |
| OEM-B-23 | A/C request (AC) | digital_in | KV8-C-19 | Digital in 10 | digital_in | single_source | |
| OEM-B-24 | O2 left rear (OXL2) | lambda_nb_in | KV8-C-7 | Analog in 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 | KV8-D-9 | EFI relay output (low side, 200 mA) | low_side_out | single_source | |
| OEM-B-5 | Check-engine lamp (W) | low_side_out | KV8-B-13 | Aux 4 | low_side_out | single_source | |
| OEM-B-6 | Fuel pump relay (FPR) | low_side_out | KV8-B-14 | Aux 5 | low_side_out | single_source | |
| OEM-B-7 | A/C clutch relay (ACMG) | low_side_out | KV8-B-15 | Aux 6 | low_side_out | single_source | |
| OEM-B-8 | Fuel pump control (FC) | low_side_out | KV8-B-5 | Injection 5 | injector_out | single_source | |
| OEM-C-1 | TPS idle switch (IDL) | digital_in | KV8-C-20 | Digital in 11 | digital_in | single_source | |
| OEM-C-10 | Igniter 2 feedback (IGF2) | digital_in | KV8-C-28 | Digital in 2 | digital_in | single_source | |
| OEM-C-11 | Knock sensor 2 (KNK2) | knock_in | KV8-D-17 | Knock 2 + | knock_in | single_source | |
| OEM-C-12 | Check connector VF2 | analog_out | — | — | — | single_source | |
| OEM-C-13 | Ignition 2 (IGT2) | ignition_out | KV8-B-27 | Ignition 2 | ignition_out | single_source | |
| OEM-C-15 | Cam sensor ground (G-) | sensor_ground | KV8-C-17 + KV8-C-25 + KV8-D-5 + KV8-D-7 | Analog sensor 0V reference + Analog sensor 0V reference + Crank index sensor − + Sync sensor − | sensor_ground + trigger_in | single_source | |
| OEM-C-16 | Crank sensor - (NE-) | sensor_ground | KV8-C-17 + KV8-C-25 + KV8-D-5 + KV8-D-7 | Analog sensor 0V reference + Analog sensor 0V reference + Crank index sensor − + Sync sensor − | sensor_ground + trigger_in | single_source | |
| OEM-C-2 | Igniter 1 feedback (IGF1) | digital_in | KV8-C-27 | Digital in 1 | digital_in | single_source | |
| OEM-C-3 | Knock sensor 1 (KNK1) | knock_in | KV8-D-11 | Knock 1 + | knock_in | single_source | |
| OEM-C-4 | Check connector VF1 | analog_out | KV8-D-19 | Analog output 0–5V | analog_out | single_source | |
| OEM-C-5 | Ignition 1 (IGT1) | ignition_out | KV8-B-26 | Ignition 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 | KV8-D-6 | Sync sensor + | trigger_in | single_source | |
| OEM-C-8 | Crank sensor + (NE+) | trigger_in | KV8-D-4 | Crank index sensor + | trigger_in | single_source | |
| OEM-D-11 | Injector 2&8 (#20) | injector_out | KV8-B-2 | Injection 2 | injector_out | single_source | |
| OEM-D-12 | Injector 1&7 (#10) | injector_out | KV8-B-1 | Injection 1 | injector_out | single_source | |
| OEM-D-13 | Power ground (E01) | ground | KV8-B-34 + KV8-B-9 + KV8-C-1 + KV8-C-26 | ECU ground + ECU ground + ECU ground + ECU ground | ground | single_source | |
| OEM-D-17 | Cold start injector 1 (STJ1) | low_side_out | KV8-B-16 | Aux 7 | low_side_out | single_source | |
| OEM-D-19 | O2 heater 2 (HT2) | low_side_out | KV8-A-10 | Lambda 1 heater − | low_side_out | single_source | |
| OEM-D-20 | O2 heater 1 (HT1) | low_side_out | KV8-A-11 | Lambda 2 heater − | low_side_out | single_source | |
| OEM-D-21 | EGR solenoid | low_side_out | KV8-B-6 | Injection 6 | injector_out | single_source | |
| OEM-D-22 | Fuel pressure-up VSV (PR) | low_side_out | KV8-B-7 | Injection 7 | injector_out | single_source | |
| OEM-D-24 | Injector 3&5 (#40) | injector_out | KV8-B-3 | Injection 3 | injector_out | single_source | |
| OEM-D-25 | Injector 4&6 (#30) | injector_out | KV8-B-4 | Injection 4 | injector_out | single_source | |
| OEM-D-26 | Power ground (E02) | ground | KV8-B-34 + KV8-B-9 + KV8-C-1 + KV8-C-26 | ECU ground + ECU ground + ECU ground + ECU ground | ground | single_source | |
| OEM-D-4 | Cold start injector (STJ) | low_side_out | KV8-B-8 | Injection 8 | injector_out | single_source | |
| OEM-D-5 | ISC stepper coil 4 (ISC4) | low_side_out | KV8-B-12 | Aux 3 | low_side_out | single_source | |
| OEM-D-6 | ISC stepper coil 3 (ISC3) | low_side_out | KV8-B-11 | Aux 2 | low_side_out | single_source | |
| OEM-D-7 | ISC stepper coil 2 (ISC2) | low_side_out | KV8-B-10 | Aux 1 | low_side_out | single_source | |
| OEM-D-8 | ISC stepper coil 1 (ISC1) | low_side_out | KV8-B-17 | Aux 8 | low_side_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 | KV8-D-1 | 0.85 | no route | ECU 14V supply | — | |
| W4 | SP-14V-1 | KV8-D-2 | 0.85 | no route | Aux 13–16 14V supply | — | |
| W5 | SP-14V-1 | KV8-D-20 | 0.85 | no route | Aux 9–12 14V supply | — | |
| W6 | OEM-A-22 | SP-GND-1 | 0.85 | no route | Power ground (E1) | — | |
| W7 | OEM-D-13 | SP-GND-1 | 0.85 | no route | Power ground (E01) | — | |
| W8 | OEM-D-26 | SP-GND-1 | 0.85 | no route | Power ground (E02) | — | |
| W9 | SP-GND-1 | KV8-B-34 | 0.85 | no route | ECU ground | — | |
| W10 | SP-GND-1 | KV8-B-9 | 0.85 | no route | ECU ground | — | |
| W11 | SP-GND-1 | KV8-C-1 | 0.85 | no route | ECU ground | — | |
| W12 | SP-GND-1 | KV8-C-26 | 0.85 | no route | ECU ground | — | |
| W13 | OEM-A-18 | SP-0V-1 | 0.5 | no route | Sensor ground (E2) | — | |
| W14 | OEM-C-15 | SP-0V-1 | 0.5 | no route | Cam sensor ground (G-) | — | |
| W15 | OEM-C-16 | SP-0V-1 | 0.5 | no route | Crank sensor - (NE-) | — | |
| W16 | SP-0V-1 | KV8-C-17 | 0.5 | no route | Analog sensor 0V reference | — | |
| W17 | SP-0V-1 | KV8-C-25 | 0.5 | no route | Analog sensor 0V reference | — | |
| W18 | OEM-A-11 | KV8-D-21 | 0.5 | no route | Sensor supply +5V (VC) | — | |
| W19 | OEM-C-8 | KV8-D-4 | 0.5 | no route | Crank sensor + (NE+) | — | |
| W20 | SP-0V-1 | KV8-D-5 | 0.5 | no route | Crank index sensor − | — | |
| W21 | OEM-C-7 | KV8-D-6 | 0.5 | no route | Cam sensor 1 + (G1+) | — | |
| W22 | SP-0V-1 | KV8-D-7 | 0.5 | no route | Sync sensor − | — | |
| W23 | OEM-C-3 | KV8-D-11 | 0.5 | no route | Knock sensor 1 (KNK1) | — | |
| W24 | OEM-C-11 | KV8-D-17 | 0.5 | no route | Knock sensor 2 (KNK2) | — | |
| W25 | OEM-C-5 | KV8-B-26 | 0.5 | no route | Ignition 1 (IGT1) | — | |
| W26 | OEM-C-13 | KV8-B-27 | 0.5 | no route | Ignition 2 (IGT2) | — | |
| W27 | OEM-D-12 | KV8-B-1 | 0.5 | no route | Injector 1&7 (#10) | — | |
| W28 | OEM-D-11 | KV8-B-2 | 0.5 | no route | Injector 2&8 (#20) | — | |
| W29 | OEM-D-24 | KV8-B-3 | 0.5 | no route | Injector 3&5 (#40) | — | |
| W30 | OEM-D-25 | KV8-B-4 | 0.5 | no route | Injector 4&6 (#30) | — | |
| W31 | OEM-A-1 | KV8-D-15 | 0.5 | no route | Ignition switch (IGSW) | — | |
| W32 | OEM-A-4 | KV8-C-2 | 0.5 | no route | Throttle position (VTA1) | — | |
| W33 | OEM-A-5 | KV8-C-3 | 0.5 | no route | Coolant temperature (THW) | — | |
| W34 | OEM-B-4 | KV8-D-9 | 0.5 | no route | EFI main relay control (MREL) | — | |
| W35 | OEM-B-6 | KV8-B-14 | 0.5 | no route | Fuel pump relay (FPR) | — | |
| W36 | OEM-B-7 | KV8-B-15 | 0.5 | no route | A/C clutch relay (ACMG) | — | |
| W37 | OEM-D-19 | KV8-A-10 | 0.5 | no route | O2 heater 2 (HT2) | — | |
| W38 | OEM-D-20 | KV8-A-11 | 0.5 | no route | O2 heater 1 (HT1) | — | |
| W39 | OEM-D-17 | KV8-B-16 | 0.5 | no route | Cold start injector 1 (STJ1) | — | |
| W40 | OEM-D-8 | KV8-B-17 | 0.5 | no route | ISC stepper coil 1 (ISC1) | — | |
| W41 | OEM-D-7 | KV8-B-10 | 0.5 | no route | ISC stepper coil 2 (ISC2) | — | |
| W42 | OEM-D-6 | KV8-B-11 | 0.5 | no route | ISC stepper coil 3 (ISC3) | — | |
| W43 | OEM-D-5 | KV8-B-12 | 0.5 | no route | ISC stepper coil 4 (ISC4) | — | |
| W44 | OEM-B-5 | KV8-B-13 | 0.5 | no route | Check-engine lamp (W) | — | |
| W45 | OEM-B-8 | KV8-B-5 | 0.5 | no route | Fuel pump control (FC) | — | |
| W46 | OEM-D-21 | KV8-B-6 | 0.5 | no route | EGR solenoid | — | |
| W47 | OEM-D-22 | KV8-B-7 | 0.5 | no route | Fuel pressure-up VSV (PR) | — | |
| W48 | OEM-D-4 | KV8-B-8 | 0.5 | no route | Cold start injector (STJ) | — | |
| W49 | OEM-A-17 | KV8-C-4 | 0.5 | no route | O2 right front (OXR1) | — | |
| W50 | OEM-A-6 | KV8-C-5 | 0.5 | no route | O2 left front (OXL1) | — | |
| W51 | OEM-B-11 | KV8-C-6 | 0.5 | no route | O2 right rear (OXR2) | — | |
| W52 | OEM-B-24 | KV8-C-7 | 0.5 | no route | O2 left rear (OXL2) | — | |
| W53 | OEM-A-16 | KV8-C-8 | 0.5 | no route | Intake air temperature (THA) | — | |
| W54 | OEM-A-7 | KV8-C-9 | 0.5 | no route | EGR temperature sensor | — | |
| W55 | OEM-C-2 | KV8-C-27 | 0.5 | no route | Igniter 1 feedback (IGF1) | — | |
| W56 | OEM-C-10 | KV8-C-28 | 0.5 | no route | Igniter 2 feedback (IGF2) | — | |
| W57 | OEM-A-19 | KV8-C-29 | 0.5 | no route | Vehicle speed (SPD) | — | |
| W58 | OEM-A-9 | KV8-C-30 | 0.5 | no route | Diagnostic test 1 (TE1) | — | |
| W59 | OEM-A-20 | KV8-C-31 | 0.5 | no route | Diagnostic test 2 (TE2) | — | |
| W60 | OEM-A-14 | KV8-C-32 | 0.5 | no route | Neutral start switch (NSW) | — | |
| W61 | OEM-A-2 | KV8-C-33 | 0.5 | no route | Starter signal (STA) | — | |
| W62 | OEM-B-19 | KV8-C-34 | 0.5 | no route | Stop light switch (BK) | — | |
| W63 | OEM-B-20 | KV8-C-18 | 0.5 | no route | A/T kickdown switch (KD) | — | |
| W64 | OEM-B-23 | KV8-C-19 | 0.5 | no route | A/C request (AC) | — | |
| W65 | OEM-C-1 | KV8-C-20 | 0.5 | no route | TPS idle switch (IDL) | — | |
| W66 | OEM-C-4 | KV8-D-19 | 0.5 | no route | Check connector VF1 | — |
Bill of materials
| Category | Part number | Manufacturer | Description | Qty | Unit |
|---|---|---|---|---|---|
| connector | 3-1437290-7 | TE | Superseal 1.0 26-way plug | 1.000 | ea |
| connector | 3-1437290-8 | TE | Superseal 1.0 26-way plug, Key 2 | 1.000 | ea |
| connector | 4-1437290-0 | TE | Superseal 1.0 34-way plug, Key 1 | 1.000 | ea |
| connector | 4-1437290-1 | TE | Superseal 1.0 34-way plug, Key 2 | 1.000 | ea |
| terminal | 3-1447221-4 | TE | Superseal 1.0 socket terminal, 20 AWG (0.5 sq mm) | 58.000 | ea |
ECU setup sheet
| Role | Engine ref | Engine signal | Sensor | ECU point | ECU function | ECU class | Setup flag |
|---|---|---|---|---|---|---|---|
| No configured channels. | |||||||
Findings
Open (11)
| 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 | DATASET_GAP | KV8 A | 14 of 26 cavities on KV8 A have no pin data (1,2,3,4,5,6,7,8,9,12,13,14,15,19). Anything there is invisible to these checks. |
| info | NET_FAMILY | KV8-C-17 ↔ KV8-D-7 | KV8-C-17 "Analog sensor 0V reference" [sensor_ground] is wired to KV8-D-7 "Sync sensor −" [trigger_in]. Trigger return tied to sensor/trigger ground: correct for single-ended trigger inputs. |
| info | NET_FAMILY | OEM-A-16 ↔ KV8-C-8 | OEM-A-16 "Intake air temperature (THA)" [temp_in] is wired to KV8-C-8 "Analog in 7" [analog_in]. Thermistor on a plain analog input needs a pull-up; check the channel can enable one. |
| info | NET_FAMILY | OEM-A-5 ↔ KV8-C-3 | OEM-A-5 "Coolant temperature (THW)" [temp_in] is wired to KV8-C-3 "Analog in 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 ↔ KV8-C-9 | OEM-A-7 "EGR temperature sensor" [temp_in] is wired to KV8-C-9 "Analog in 8" [analog_in]. Thermistor on a plain analog input needs a pull-up; check the channel can enable one. |
| info | NET_FAMILY | OEM-B-8 ↔ KV8-B-5 | OEM-B-8 "Fuel pump control (FC)" [low_side_out] is wired to KV8-B-5 "Injection 5" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | NET_FAMILY | OEM-D-21 ↔ KV8-B-6 | OEM-D-21 "EGR solenoid" [low_side_out] is wired to KV8-B-6 "Injection 6" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | NET_FAMILY | OEM-D-22 ↔ KV8-B-7 | OEM-D-22 "Fuel pressure-up VSV (PR)" [low_side_out] is wired to KV8-B-7 "Injection 7" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | NET_FAMILY | OEM-D-4 ↔ KV8-B-8 | OEM-D-4 "Cold start injector (STJ)" [low_side_out] is wired to KV8-B-8 "Injection 8" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | UNMAPPED | OEM | 2 optional OEM pins are not mapped: OEM-A-8 Knock/shield (KS); OEM-C-12 Check connector VF2 |
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 KV8 Not wired: - OEM-B 26: Battery constant (BATT): Emtron KV8 has no battery-constant input; not needed - KV8-D 12: Knock 1 − left open: the stock knock sensor has one ECU wire; check the ECU manual for single-wire knock sensors - KV8-D 18: 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 KV8 - OEM-C 12: Check connector VF2: no free analog_out on Emtron KV8
Sources
| Reliability | Kind | Title | URL | Archive | Captured | SHA-256 |
|---|---|---|---|---|---|---|
| 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/ | — | — | — |
| 2 | user_dataset | Subaru ECU Matcher dataset (hiubin), vehicleId=1 | — | — | — | — |