Honda NSX NA1 1991-2005 (C30A) → Emtron SL8 (auto)
Honda NSX NA1 1991-2005 (C30A) — Emtron — SL8
⚠ NOT CHECKED. Don't build from this.
Drawn by Michael Gnankou · Rev 0 · draft · 2026-10-07
Before you start
| Status | draft · not yet verified: nobody has reported building and running this harness |
|---|---|
| Open errors | none |
| Size of the job | 68 wires · 11 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-25 | SP-14V-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W2 | OEM-C-1 | 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-23 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W6 | OEM-A-24 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W7 | OEM-B-2 | 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-26 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W11 | OEM-B-10 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W12 | OEM-B-12 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W13 | OEM-B-14 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W14 | OEM-B-16 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W15 | OEM-D-21 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W16 | OEM-D-22 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W17 | SP-0V-1 | SL8-B-10 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W18 | OEM-D-18 | SP-5V1-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W19 | OEM-D-19 | SP-5V1-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W20 | OEM-D-20 | SP-5V1-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W21 | SP-5V1-1 | SL8-B-2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W22 | OEM-B-15 | SL8-B-5 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W23 | SP-0V-1 | SL8-B-6 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W24 | OEM-B-11 | SL8-B-7 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W25 | SP-0V-1 | SL8-B-8 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W26 | OEM-D-4 | SL8-B-16 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W27 | OEM-D-3 | SL8-B-24 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W28 | OEM-A-21 | SL8-A-26 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W29 | OEM-A-22 | SL8-A-27 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W30 | OEM-B-8 | SL8-A-28 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W31 | OEM-B-6 | SL8-A-29 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W32 | OEM-B-4 | SL8-A-30 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W33 | OEM-B-3 | SL8-A-31 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W34 | OEM-A-1 | SL8-A-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W35 | OEM-A-3 | SL8-A-2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W36 | OEM-A-5 | SL8-A-3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W37 | OEM-A-2 | SL8-A-4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W38 | OEM-A-4 | SL8-A-5 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W39 | OEM-A-6 | SL8-A-6 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W40 | OEM-A-8 | SL8-B-3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W41 | OEM-A-15 | SL8-A-14 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W42 | OEM-A-18 | SL8-A-15 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W43 | OEM-A-7 | SL8-A-16 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W44 | OEM-5-F5 | SL8-A-17 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W45 | OEM-5-F7 | SL8-A-10 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W46 | OEM-A-10 | SL8-A-11 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W47 | OEM-A-12 | SL8-A-12 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W48 | OEM-A-11 | SL8-A-13 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W49 | OEM-A-13 | SL8-A-7 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W50 | OEM-A-14 | SL8-A-8 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W51 | OEM-A-20 | SL8-A-18 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W52 | OEM-A-9 | SL8-A-19 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W53 | OEM-D-17 | SL8-B-11 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W54 | OEM-D-11 | SL8-B-12 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W55 | OEM-D-14 | SL8-B-13 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W56 | OEM-D-16 | SL8-B-14 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W57 | OEM-D-13 | SL8-B-15 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W58 | OEM-D-15 | SL8-B-19 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W59 | OEM-D-12 | SL8-B-20 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W60 | OEM-C-2 | SL8-A-20 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W61 | OEM-D-9 | SL8-A-21 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W62 | OEM-5-F2 | SL8-A-22 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W63 | OEM-5-F4 | SL8-A-23 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W64 | OEM-B-7 | SL8-A-24 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W65 | OEM-C-11 | SL8-A-25 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W66 | OEM-C-3 | SL8-B-21 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W67 | OEM-C-5 | SL8-B-22 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W68 | OEM-C-7 | 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-2 | open (OL) | +12 V supply must not touch 5 V sensor reference | |
| 3 | SL8-B-10 | SL8-B-2 | open (OL) | sensor ground must not touch 5 V sensor reference | |
| 4 | SL8-B-18 | SL8-A-34 | open (OL) | power ground must not touch +12 V supply | |
| 5 | SL8-B-18 | SL8-B-2 | open (OL) | power ground must not touch 5 V sensor reference |
Revisions
| Rev | Label | By | Date |
|---|---|---|---|
| No revisions yet. | |||
Schematic
Connectors
OEM-5
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| F2 | Front VTEC pressure switch | — | W62 | — | 0.5 | SL8-A-22 | — | — | — |
| F4 | Rear VTEC pressure switch | — | W63 | — | 0.5 | SL8-A-23 | — | — | — |
| F5 | Front VTEC solenoid valve | — | W44 | — | 0.5 | SL8-A-17 | — | — | — |
| F7 | Rear VTEC solenoid valve | — | W45 | — | 0.5 | SL8-A-10 | — | — | — |
OEM-A
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Injector 1 | — | W34 | — | 0.5 | SL8-A-1 | — | — | — |
| 10 | Front O2 sensor heater (HTCNTF) | — | W46 | — | 0.5 | SL8-A-11 | — | — | — |
| 11 | EGR control solenoid | — | W48 | — | 0.5 | SL8-A-13 | — | — | — |
| 12 | Rear O2 sensor heater (HTCNTR) | — | W47 | — | 0.5 | SL8-A-12 | — | — | — |
| 13 | Check engine light (WARN) | — | W49 | — | 0.5 | SL8-A-7 | — | — | — |
| 14 | Chamber volume control solenoid (BPS) | — | W50 | — | 0.5 | SL8-A-8 | — | — | — |
| 15 | A/C clutch relay (ACC) | — | W41 | — | 0.5 | SL8-A-14 | — | — | — |
| 18 | Radiator fan control (FANCNTR) | — | W42 | — | 0.5 | SL8-A-15 | — | — | — |
| 2 | Injector 4 | — | W37 | — | 0.5 | SL8-A-4 | — | — | — |
| 20 | EVAP purge cut-off solenoid (PGS) | — | W51 | — | 0.5 | SL8-A-18 | — | — | — |
| 21 | Ignition coil 1 | — | W28 | — | 0.5 | SL8-A-26 | — | — | — |
| 22 | Ignition coil 2 | — | W29 | — | 0.5 | SL8-A-27 | — | — | — |
| 23 | Power ground (PG1) | — | W5 | — | 0.85 | SP-GND-1 | — | — | — |
| 24 | Power ground (PG2) | — | W6 | — | 0.85 | SP-GND-1 | — | — | — |
| 25 | ECU power (IGP1) | — | W1 | — | 0.85 | SP-14V-1 | — | — | — |
| 26 | Sensor ground (LG1) | — | W10 | — | 0.5 | SP-0V-1 | — | — | — |
| 3 | Injector 2 | — | W35 | — | 0.5 | SL8-A-2 | — | — | — |
| 4 | Injector 5 | — | W38 | — | 0.5 | SL8-A-5 | — | — | — |
| 5 | Injector 3 | — | W36 | — | 0.5 | SL8-A-3 | — | — | — |
| 6 | Injector 6 | — | W39 | — | 0.5 | SL8-A-6 | — | — | — |
| 7 | Main relay | — | W43 | — | 0.5 | SL8-A-16 | — | — | — |
| 8 | Fuel pump relay 2 (FLR2) | — | W40 | — | 0.5 | SL8-B-3 | — | — | — |
| 9 | Idle air control valve (IACV) | — | W52 | — | 0.5 | SL8-A-19 | — | — | — |
OEM-B
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 10 | CYL 2M — CYP sensor 2 return | — | W11 | — | 0.5 | SP-0V-1 | — | — | — |
| 11 | CYL 1P — CYP sensor 1 signal | — | W24 | — | 0.5 | SL8-B-7 | — | — | — |
| 12 | CYL 1M — CYP sensor 1 return | — | W12 | — | 0.5 | SP-0V-1 | — | — | — |
| 13 | CRNK 2P — TDC sensor signal | — | — | — | — | — | — | — | — |
| 14 | CRNK 2M — TDC sensor return | — | W13 | — | 0.5 | SP-0V-1 | — | — | — |
| 15 | CRNK 1P — crank sensor signal | — | W22 | — | 0.5 | SL8-B-5 | — | — | — |
| 16 | CRNK 1M — crank sensor return | — | W14 | — | 0.5 | SP-0V-1 | — | — | — |
| 2 | Chassis ground (LG2) | — | W7 | — | 0.85 | SP-GND-1 | — | — | — |
| 3 | Ignition coil 6 | — | W33 | — | 0.5 | SL8-A-31 | — | — | — |
| 4 | Ignition coil 5 | — | W32 | — | 0.5 | SL8-A-30 | — | — | — |
| 6 | Ignition coil 4 | — | W31 | — | 0.5 | SL8-A-29 | — | — | — |
| 7 | Neutral switch (M/T) / gear position (A/T) | — | W64 | — | 0.5 | SL8-A-24 | — | — | — |
| 8 | Ignition coil 3 | — | W30 | — | 0.5 | SL8-A-28 | — | — | — |
| 9 | CYL 2P — CYP sensor 2 signal | — | — | — | — | — | — | — | — |
OEM-C
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | ECU power (IGP2) | — | W2 | — | 0.85 | SP-14V-1 | — | — | — |
| 10 | Traction control | — | — | — | — | — | — | — | — |
| 11 | Starter switch (STS) | — | W65 | — | 0.5 | SL8-A-25 | — | — | — |
| 12 | Traction control | — | — | — | — | — | — | — | — |
| 2 | Vehicle speed sensor (VSS) | — | W60 | — | 0.5 | SL8-A-20 | — | — | — |
| 3 | A/C switch (ACS) | — | W66 | — | 0.5 | SL8-B-21 | — | — | — |
| 4 | Tachometer output (NEP) | — | — | — | — | — | — | — | — |
| 5 | A/C pressure switch (PDSW) | — | W67 | — | 0.5 | SL8-B-22 | — | — | — |
| 6 | Traction control | — | — | — | — | — | — | — | — |
| 7 | Clutch switch (M/T) | — | W68 | — | 0.5 | SL8-B-23 | — | — | — |
| 8 | Traction control | — | — | — | — | — | — | — | — |
| 9 | Service check connector (SCS) | — | — | — | — | — | — | — | — |
OEM-D
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Battery backup (VBU) | — | — | — | — | — | — | — | — |
| 11 | Throttle position sensor (TPS) | — | W54 | — | 0.5 | SL8-B-12 | — | — | — |
| 12 | EGR lift sensor (EGRL) | — | W59 | — | 0.5 | SL8-B-20 | — | — | — |
| 13 | Engine coolant temperature (ECT) | — | W57 | — | 0.5 | SL8-B-15 | — | — | — |
| 14 | Primary O2 sensor | — | W55 | — | 0.5 | SL8-B-13 | — | — | — |
| 15 | Intake air temperature (IAT) | — | W58 | — | 0.5 | SL8-B-19 | — | — | — |
| 16 | Secondary O2 sensor | — | W56 | — | 0.5 | SL8-B-14 | — | — | — |
| 17 | MAP sensor | — | W53 | — | 0.5 | SL8-B-11 | — | — | — |
| 18 | +5V sensor supply (VCC) | — | W18 | — | 0.5 | SP-5V1-1 | — | — | — |
| 19 | +5V sensor supply (VCC) | — | W19 | — | 0.5 | SP-5V1-1 | — | — | — |
| 20 | +5V sensor supply (VCC) | — | W20 | — | 0.5 | SP-5V1-1 | — | — | — |
| 21 | Sensor ground (SG) | — | W15 | — | 0.5 | SP-0V-1 | — | — | — |
| 22 | Sensor ground (SG) | — | W16 | — | 0.5 | SP-0V-1 | — | — | — |
| 3 | Knock sensor — rear | — | W27 | — | 0.5 | SL8-B-24 | — | — | — |
| 4 | Knock sensor — front | — | W26 | — | 0.5 | SL8-B-16 | — | — | — |
| 5 | Traction control | — | — | — | — | — | — | — | — |
| 6 | Fuel pump voltage monitor (VFP) | — | — | — | — | — | — | — | — |
| 8 | Ignition timing adjuster (IGADJ) | — | — | — | — | — | — | — | — |
| 9 | Alternator FR signal | — | W61 | — | 0.5 | SL8-A-21 | — | — | — |
SL8-A
Mating face
Wire side
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Injection channel 1 | — | W34 | — | 0.5 | OEM-A-1 | — | — | — |
| 2 | Injection channel 2 | — | W35 | — | 0.5 | OEM-A-3 | — | — | — |
| 3 | Injection channel 3 | — | W36 | — | 0.5 | OEM-A-5 | — | — | — |
| 4 | Injection channel 4 | — | W37 | — | 0.5 | OEM-A-2 | — | — | — |
| 5 | Injection channel 5 | — | W38 | — | 0.5 | OEM-A-4 | — | — | — |
| 6 | Injection channel 6 | — | W39 | — | 0.5 | OEM-A-6 | — | — | — |
| 7 | Injection channel 7 | — | W49 | — | 0.5 | OEM-A-13 | — | — | — |
| 8 | Injection channel 8 | — | W50 | — | 0.5 | OEM-A-14 | — | — | — |
| 9 | Sensor supply 8V | — | — | — | — | — | — | — | — |
| 10 | Auxiliary output 1 | — | W45 | — | 0.5 | OEM-5-F7 | — | — | — |
| 11 | Auxiliary output 2 | — | W46 | — | 0.5 | OEM-A-10 | — | — | — |
| 12 | Auxiliary output 3 | — | W47 | — | 0.5 | OEM-A-12 | — | — | — |
| 13 | Auxiliary output 4 | — | W48 | — | 0.5 | OEM-A-11 | — | — | — |
| 14 | Auxiliary output 5 | — | W41 | — | 0.5 | OEM-A-15 | — | — | — |
| 15 | Auxiliary output 6 | — | W42 | — | 0.5 | OEM-A-18 | — | — | — |
| 16 | Auxiliary output 7 | — | W43 | — | 0.5 | OEM-A-7 | — | — | — |
| 17 | Auxiliary output 8 | — | W44 | — | 0.5 | OEM-5-F5 | — | — | — |
| 18 | Auxiliary output 9 | — | W51 | — | 0.5 | OEM-A-20 | — | — | — |
| 19 | Auxiliary output 10 | — | W52 | — | 0.5 | OEM-A-9 | — | — | — |
| 20 | Digital input 1 | — | W60 | — | 0.5 | OEM-C-2 | — | — | — |
| 21 | Digital input 2 | — | W61 | — | 0.5 | OEM-D-9 | — | — | — |
| 22 | Digital input 3 | — | W62 | — | 0.5 | OEM-5-F2 | — | — | — |
| 23 | Digital input 4 | — | W63 | — | 0.5 | OEM-5-F4 | — | — | — |
| 24 | Digital input 5 | — | W64 | — | 0.5 | OEM-B-7 | — | — | — |
| 25 | Digital input 6 | — | W65 | — | 0.5 | OEM-C-11 | — | — | — |
| 26 | Ignition channel 1 | — | W28 | — | 0.5 | OEM-A-21 | — | — | — |
| 27 | Ignition channel 2 | — | W29 | — | 0.5 | OEM-A-22 | — | — | — |
| 28 | Ignition channel 3 | — | W30 | — | 0.5 | OEM-B-8 | — | — | — |
| 29 | Ignition channel 4 | — | W31 | — | 0.5 | OEM-B-6 | — | — | — |
| 30 | Ignition channel 5 | — | W32 | — | 0.5 | OEM-B-4 | — | — | — |
| 31 | Ignition channel 6 | — | W33 | — | 0.5 | OEM-B-3 | — | — | — |
| 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 | — | W21 | — | 0.5 | SP-5V1-1 | — | — | — |
| 3 | EFI relay output (low side, 200 mA) | — | W40 | — | 0.5 | OEM-A-8 | — | — | — |
| 4 | Ignition switch input | — | — | — | — | — | — | — | — |
| 5 | Crank index sensor + | — | W22 | — | 0.5 | OEM-B-15 | — | — | — |
| 6 | Crank index sensor − | — | W23 | — | 0.5 | SP-0V-1 | — | — | — |
| 7 | Sync sensor + | — | W24 | — | 0.5 | OEM-B-11 | — | — | — |
| 8 | Sync sensor − | — | W25 | — | 0.5 | SP-0V-1 | — | — | — |
| 9 | Shield (crank/sync/knock) | — | — | — | — | — | — | — | — |
| 10 | Analog sensor 0V reference | — | W17 | — | 0.5 | SP-0V-1 | — | — | — |
| 11 | Analog input 1 | — | W53 | — | 0.5 | OEM-D-17 | — | — | — |
| 12 | Analog input 2 | — | W54 | — | 0.5 | OEM-D-11 | — | — | — |
| 13 | Analog input 3 | — | W55 | — | 0.5 | OEM-D-14 | — | — | — |
| 14 | Analog input 4 | — | W56 | — | 0.5 | OEM-D-16 | — | — | — |
| 15 | Analog input 5 | — | W57 | — | 0.5 | OEM-D-13 | — | — | — |
| 16 | Knock 1 + | — | W26 | — | 0.5 | OEM-D-4 | — | — | — |
| 17 | Knock 1 − | — | — | — | — | — | — | — | — |
| 18 | ECU ground | — | W8 | — | 0.85 | SP-GND-1 | — | — | — |
| 19 | Analog input 6 | — | W58 | — | 0.5 | OEM-D-15 | — | — | — |
| 20 | Analog input 7 (switchable 1k pull-up) | — | W59 | — | 0.5 | OEM-D-12 | — | — | — |
| 21 | Analog input 8 (switchable 1k pull-up) | — | W66 | — | 0.5 | OEM-C-3 | — | — | — |
| 22 | Analog input 9 (switchable 1k pull-up) | — | W67 | — | 0.5 | OEM-C-5 | — | — | — |
| 23 | Analog input 10 (switchable 1k pull-up) | — | W68 | — | 0.5 | OEM-C-7 | — | — | — |
| 24 | Knock 2 + | — | W27 | — | 0.5 | OEM-D-3 | — | — | — |
| 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 | — | — | W15 | — | 0.5 | OEM-D-21 | — | — | — |
| 1 | — | — | W10 | — | 0.5 | OEM-A-26 | — | — | — |
| 1 | — | — | W11 | — | 0.5 | OEM-B-10 | — | — | — |
| 1 | — | — | W12 | — | 0.5 | OEM-B-12 | — | — | — |
| 1 | — | — | W13 | — | 0.5 | OEM-B-14 | — | — | — |
| 1 | — | — | W14 | — | 0.5 | OEM-B-16 | — | — | — |
| 1 | — | — | W16 | — | 0.5 | OEM-D-22 | — | — | — |
| 1 | — | — | W17 | — | 0.5 | SL8-B-10 | — | — | — |
| 1 | — | — | W23 | — | 0.5 | SL8-B-6 | — | — | — |
| 1 | — | — | W25 | — | 0.5 | SL8-B-8 | — | — | — |
SP-14V
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W1 | — | 0.85 | OEM-A-25 | — | — | — |
| 1 | — | — | W2 | — | 0.85 | OEM-C-1 | — | — | — |
| 1 | — | — | W3 | — | 0.85 | SL8-A-34 | — | — | — |
| 1 | — | — | W4 | — | 0.85 | SL8-B-1 | — | — | — |
SP-5V1
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W18 | — | 0.5 | OEM-D-18 | — | — | — |
| 1 | — | — | W19 | — | 0.5 | OEM-D-19 | — | — | — |
| 1 | — | — | W20 | — | 0.5 | OEM-D-20 | — | — | — |
| 1 | — | — | W21 | — | 0.5 | SL8-B-2 | — | — | — |
SP-GND
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W5 | — | 0.85 | OEM-A-23 | — | — | — |
| 1 | — | — | W6 | — | 0.85 | OEM-A-24 | — | — | — |
| 1 | — | — | W7 | — | 0.85 | OEM-B-2 | — | — | — |
| 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-5-F2 | Front VTEC pressure switch | digital_in | SL8-A-22 | Digital input 3 | digital_in | single_source | |
| OEM-5-F4 | Rear VTEC pressure switch | digital_in | SL8-A-23 | Digital input 4 | digital_in | single_source | |
| OEM-5-F5 | Front VTEC solenoid valve | high_side_out | SL8-A-17 | Auxiliary output 8 | switch_out | single_source | |
| OEM-5-F7 | Rear VTEC solenoid valve | high_side_out | SL8-A-10 | Auxiliary output 1 | switch_out | single_source | |
| OEM-A-1 | Injector 1 | injector_out | SL8-A-1 | Injection channel 1 | injector_out | single_source | |
| OEM-A-10 | Front O2 sensor heater (HTCNTF) | low_side_out | SL8-A-11 | Auxiliary output 2 | switch_out | single_source | |
| OEM-A-11 | EGR control solenoid | low_side_out | SL8-A-13 | Auxiliary output 4 | switch_out | single_source | |
| OEM-A-12 | Rear O2 sensor heater (HTCNTR) | low_side_out | SL8-A-12 | Auxiliary output 3 | switch_out | single_source | |
| OEM-A-13 | Check engine light (WARN) | low_side_out | SL8-A-7 | Injection channel 7 | injector_out | single_source | |
| OEM-A-14 | Chamber volume control solenoid (BPS) | low_side_out | SL8-A-8 | Injection channel 8 | injector_out | single_source | |
| OEM-A-15 | A/C clutch relay (ACC) | low_side_out | SL8-A-14 | Auxiliary output 5 | switch_out | single_source | |
| OEM-A-18 | Radiator fan control (FANCNTR) | low_side_out | SL8-A-15 | Auxiliary output 6 | switch_out | single_source | |
| OEM-A-2 | Injector 4 | injector_out | SL8-A-4 | Injection channel 4 | injector_out | single_source | |
| OEM-A-20 | EVAP purge cut-off solenoid (PGS) | low_side_out | SL8-A-18 | Auxiliary output 9 | hbridge_out | single_source | |
| OEM-A-21 | Ignition coil 1 | ignition_out | SL8-A-26 | Ignition channel 1 | ignition_out | single_source | |
| OEM-A-22 | Ignition coil 2 | ignition_out | SL8-A-27 | Ignition channel 2 | ignition_out | single_source | |
| OEM-A-23 | Power ground (PG1) | ground | SL8-B-18 + SL8-B-26 | ECU ground + ECU ground | ground | single_source | |
| OEM-A-24 | Power ground (PG2) | ground | SL8-B-18 + SL8-B-26 | ECU ground + ECU ground | ground | single_source | |
| OEM-A-25 | ECU power (IGP1) | power_in | SL8-A-34 + SL8-B-1 | Aux 9–10 14V supply + ECU 14V supply | power_in | single_source | |
| OEM-A-26 | Sensor ground (LG1) | 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-3 | Injector 2 | injector_out | SL8-A-2 | Injection channel 2 | injector_out | single_source | |
| OEM-A-4 | Injector 5 | injector_out | SL8-A-5 | Injection channel 5 | injector_out | corroborated | |
| OEM-A-5 | Injector 3 | injector_out | SL8-A-3 | Injection channel 3 | injector_out | single_source | |
| OEM-A-6 | Injector 6 | injector_out | SL8-A-6 | Injection channel 6 | injector_out | single_source | |
| OEM-A-7 | Main relay | low_side_out | SL8-A-16 | Auxiliary output 7 | switch_out | single_source | |
| OEM-A-8 | Fuel pump relay 2 (FLR2) | low_side_out | SL8-B-3 | EFI relay output (low side, 200 mA) | low_side_out | single_source | |
| OEM-A-9 | Idle air control valve (IACV) | low_side_out | SL8-A-19 | Auxiliary output 10 | hbridge_out | single_source | |
| OEM-B-10 | CYL 2M — CYP sensor 2 return | 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-B-11 | CYL 1P — CYP sensor 1 signal | trigger_in | SL8-B-7 | Sync sensor + | trigger_in | single_source | |
| OEM-B-12 | CYL 1M — CYP sensor 1 return | 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-B-13 | CRNK 2P — TDC sensor signal | trigger_in | — | — | — | single_source | |
| OEM-B-14 | CRNK 2M — TDC sensor return | 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-B-15 | CRNK 1P — crank sensor signal | trigger_in | SL8-B-5 | Crank index sensor + | trigger_in | single_source | |
| OEM-B-16 | CRNK 1M — crank sensor return | 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-B-2 | Chassis ground (LG2) | ground | SL8-B-18 + SL8-B-26 | ECU ground + ECU ground | ground | single_source | |
| OEM-B-3 | Ignition coil 6 | ignition_out | SL8-A-31 | Ignition channel 6 | ignition_out | single_source | |
| OEM-B-4 | Ignition coil 5 | ignition_out | SL8-A-30 | Ignition channel 5 | ignition_out | single_source | |
| OEM-B-6 | Ignition coil 4 | ignition_out | SL8-A-29 | Ignition channel 4 | ignition_out | single_source | |
| OEM-B-7 | Neutral switch (M/T) / gear position (A/T) | digital_in | SL8-A-24 | Digital input 5 | digital_in | single_source | |
| OEM-B-8 | Ignition coil 3 | ignition_out | SL8-A-28 | Ignition channel 3 | ignition_out | single_source | |
| OEM-B-9 | CYL 2P — CYP sensor 2 signal | trigger_in | — | — | — | single_source | |
| OEM-C-1 | ECU power (IGP2) | power_in | SL8-A-34 + SL8-B-1 | Aux 9–10 14V supply + ECU 14V supply | power_in | single_source | |
| OEM-C-10 | Traction control | — | — | — | — | single_source | |
| OEM-C-11 | Starter switch (STS) | digital_in | SL8-A-25 | Digital input 6 | digital_in | single_source | |
| OEM-C-12 | Traction control | — | — | — | — | single_source | |
| OEM-C-2 | Vehicle speed sensor (VSS) | digital_in | SL8-A-20 | Digital input 1 | digital_in | single_source | |
| OEM-C-3 | A/C switch (ACS) | digital_in | SL8-B-21 | Analog input 8 (switchable 1k pull-up) | analog_in | single_source | |
| OEM-C-4 | Tachometer output (NEP) | tacho_out | — | — | — | single_source | |
| OEM-C-5 | A/C pressure switch (PDSW) | digital_in | SL8-B-22 | Analog input 9 (switchable 1k pull-up) | analog_in | single_source | |
| OEM-C-6 | Traction control | — | — | — | — | single_source | |
| OEM-C-7 | Clutch switch (M/T) | digital_in | SL8-B-23 | Analog input 10 (switchable 1k pull-up) | analog_in | single_source | |
| OEM-C-8 | Traction control | — | — | — | — | single_source | |
| OEM-C-9 | Service check connector (SCS) | digital_in | — | — | — | single_source | |
| OEM-D-1 | Battery backup (VBU) | power_in | — | — | — | single_source | |
| OEM-D-11 | Throttle position sensor (TPS) | analog_in | SL8-B-12 | Analog input 2 | analog_in | single_source | |
| OEM-D-12 | EGR lift sensor (EGRL) | analog_in | SL8-B-20 | Analog input 7 (switchable 1k pull-up) | analog_in | single_source | |
| OEM-D-13 | Engine coolant temperature (ECT) | temp_in | SL8-B-15 | Analog input 5 | analog_in | single_source | |
| OEM-D-14 | Primary O2 sensor | lambda_nb_in | SL8-B-13 | Analog input 3 | analog_in | single_source | |
| OEM-D-15 | Intake air temperature (IAT) | temp_in | SL8-B-19 | Analog input 6 | analog_in | single_source | |
| OEM-D-16 | Secondary O2 sensor | lambda_nb_in | SL8-B-14 | Analog input 4 | analog_in | single_source | |
| OEM-D-17 | MAP sensor | analog_in | SL8-B-11 | Analog input 1 | analog_in | single_source | |
| OEM-D-18 | +5V sensor supply (VCC) | vref | SL8-B-2 | Sensor supply Vref1 5.0V | vref | single_source | |
| OEM-D-19 | +5V sensor supply (VCC) | vref | SL8-B-2 | Sensor supply Vref1 5.0V | vref | single_source | |
| OEM-D-20 | +5V sensor supply (VCC) | vref | SL8-B-2 | Sensor supply Vref1 5.0V | vref | single_source | |
| OEM-D-21 | Sensor ground (SG) | 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-D-22 | Sensor ground (SG) | 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-D-3 | Knock sensor — rear | knock_in | SL8-B-24 | Knock 2 + | knock_in | single_source | |
| OEM-D-4 | Knock sensor — front | knock_in | SL8-B-16 | Knock 1 + | knock_in | single_source | |
| OEM-D-5 | Traction control | — | — | — | — | single_source | |
| OEM-D-6 | Fuel pump voltage monitor (VFP) | — | — | — | — | corroborated | |
| OEM-D-8 | Ignition timing adjuster (IGADJ) | digital_in | — | — | — | single_source | |
| OEM-D-9 | Alternator FR signal | digital_in | SL8-A-21 | Digital input 2 | digital_in | single_source |
Cut list
| Wire | From | To | Gauge (mm²) | Colour | Length | Signal | Ident |
|---|---|---|---|---|---|---|---|
| W1 | OEM-A-25 | SP-14V-1 | 0.85 | no route | ECU power (IGP1) | — | |
| W2 | OEM-C-1 | SP-14V-1 | 0.85 | no route | ECU power (IGP2) | — | |
| 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-23 | SP-GND-1 | 0.85 | no route | Power ground (PG1) | — | |
| W6 | OEM-A-24 | SP-GND-1 | 0.85 | no route | Power ground (PG2) | — | |
| W7 | OEM-B-2 | SP-GND-1 | 0.85 | no route | Chassis ground (LG2) | — | |
| 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-26 | SP-0V-1 | 0.5 | no route | Sensor ground (LG1) | — | |
| W11 | OEM-B-10 | SP-0V-1 | 0.5 | no route | CYL 2M — CYP sensor 2 return | — | |
| W12 | OEM-B-12 | SP-0V-1 | 0.5 | no route | CYL 1M — CYP sensor 1 return | — | |
| W13 | OEM-B-14 | SP-0V-1 | 0.5 | no route | CRNK 2M — TDC sensor return | — | |
| W14 | OEM-B-16 | SP-0V-1 | 0.5 | no route | CRNK 1M — crank sensor return | — | |
| W15 | OEM-D-21 | SP-0V-1 | 0.5 | no route | Sensor ground (SG) | — | |
| W16 | OEM-D-22 | SP-0V-1 | 0.5 | no route | Sensor ground (SG) | — | |
| W17 | SP-0V-1 | SL8-B-10 | 0.5 | no route | Analog sensor 0V reference | — | |
| W18 | OEM-D-18 | SP-5V1-1 | 0.5 | no route | +5V sensor supply (VCC) | — | |
| W19 | OEM-D-19 | SP-5V1-1 | 0.5 | no route | +5V sensor supply (VCC) | — | |
| W20 | OEM-D-20 | SP-5V1-1 | 0.5 | no route | +5V sensor supply (VCC) | — | |
| W21 | SP-5V1-1 | SL8-B-2 | 0.5 | no route | Sensor supply Vref1 5.0V | — | |
| W22 | OEM-B-15 | SL8-B-5 | 0.5 | no route | CRNK 1P — crank sensor signal | — | |
| W23 | SP-0V-1 | SL8-B-6 | 0.5 | no route | Crank index sensor − | — | |
| W24 | OEM-B-11 | SL8-B-7 | 0.5 | no route | CYL 1P — CYP sensor 1 signal | — | |
| W25 | SP-0V-1 | SL8-B-8 | 0.5 | no route | Sync sensor − | — | |
| W26 | OEM-D-4 | SL8-B-16 | 0.5 | no route | Knock sensor — front | — | |
| W27 | OEM-D-3 | SL8-B-24 | 0.5 | no route | Knock sensor — rear | — | |
| W28 | OEM-A-21 | SL8-A-26 | 0.5 | no route | Ignition coil 1 | — | |
| W29 | OEM-A-22 | SL8-A-27 | 0.5 | no route | Ignition coil 2 | — | |
| W30 | OEM-B-8 | SL8-A-28 | 0.5 | no route | Ignition coil 3 | — | |
| W31 | OEM-B-6 | SL8-A-29 | 0.5 | no route | Ignition coil 4 | — | |
| W32 | OEM-B-4 | SL8-A-30 | 0.5 | no route | Ignition coil 5 | — | |
| W33 | OEM-B-3 | SL8-A-31 | 0.5 | no route | Ignition coil 6 | — | |
| W34 | OEM-A-1 | SL8-A-1 | 0.5 | no route | Injector 1 | — | |
| W35 | OEM-A-3 | SL8-A-2 | 0.5 | no route | Injector 2 | — | |
| W36 | OEM-A-5 | SL8-A-3 | 0.5 | no route | Injector 3 | — | |
| W37 | OEM-A-2 | SL8-A-4 | 0.5 | no route | Injector 4 | — | |
| W38 | OEM-A-4 | SL8-A-5 | 0.5 | no route | Injector 5 | — | |
| W39 | OEM-A-6 | SL8-A-6 | 0.5 | no route | Injector 6 | — | |
| W40 | OEM-A-8 | SL8-B-3 | 0.5 | no route | Fuel pump relay 2 (FLR2) | — | |
| W41 | OEM-A-15 | SL8-A-14 | 0.5 | no route | A/C clutch relay (ACC) | — | |
| W42 | OEM-A-18 | SL8-A-15 | 0.5 | no route | Radiator fan control (FANCNTR) | — | |
| W43 | OEM-A-7 | SL8-A-16 | 0.5 | no route | Main relay | — | |
| W44 | OEM-5-F5 | SL8-A-17 | 0.5 | no route | Front VTEC solenoid valve | — | |
| W45 | OEM-5-F7 | SL8-A-10 | 0.5 | no route | Rear VTEC solenoid valve | — | |
| W46 | OEM-A-10 | SL8-A-11 | 0.5 | no route | Front O2 sensor heater (HTCNTF) | — | |
| W47 | OEM-A-12 | SL8-A-12 | 0.5 | no route | Rear O2 sensor heater (HTCNTR) | — | |
| W48 | OEM-A-11 | SL8-A-13 | 0.5 | no route | EGR control solenoid | — | |
| W49 | OEM-A-13 | SL8-A-7 | 0.5 | no route | Check engine light (WARN) | — | |
| W50 | OEM-A-14 | SL8-A-8 | 0.5 | no route | Chamber volume control solenoid (BPS) | — | |
| W51 | OEM-A-20 | SL8-A-18 | 0.5 | no route | EVAP purge cut-off solenoid (PGS) | — | |
| W52 | OEM-A-9 | SL8-A-19 | 0.5 | no route | Idle air control valve (IACV) | — | |
| W53 | OEM-D-17 | SL8-B-11 | 0.5 | no route | MAP sensor | — | |
| W54 | OEM-D-11 | SL8-B-12 | 0.5 | no route | Throttle position sensor (TPS) | — | |
| W55 | OEM-D-14 | SL8-B-13 | 0.5 | no route | Primary O2 sensor | — | |
| W56 | OEM-D-16 | SL8-B-14 | 0.5 | no route | Secondary O2 sensor | — | |
| W57 | OEM-D-13 | SL8-B-15 | 0.5 | no route | Engine coolant temperature (ECT) | — | |
| W58 | OEM-D-15 | SL8-B-19 | 0.5 | no route | Intake air temperature (IAT) | — | |
| W59 | OEM-D-12 | SL8-B-20 | 0.5 | no route | EGR lift sensor (EGRL) | — | |
| W60 | OEM-C-2 | SL8-A-20 | 0.5 | no route | Vehicle speed sensor (VSS) | — | |
| W61 | OEM-D-9 | SL8-A-21 | 0.5 | no route | Alternator FR signal | — | |
| W62 | OEM-5-F2 | SL8-A-22 | 0.5 | no route | Front VTEC pressure switch | — | |
| W63 | OEM-5-F4 | SL8-A-23 | 0.5 | no route | Rear VTEC pressure switch | — | |
| W64 | OEM-B-7 | SL8-A-24 | 0.5 | no route | Neutral switch (M/T) / gear position (A/T) | — | |
| W65 | OEM-C-11 | SL8-A-25 | 0.5 | no route | Starter switch (STS) | — | |
| W66 | OEM-C-3 | SL8-B-21 | 0.5 | no route | A/C switch (ACS) | — | |
| W67 | OEM-C-5 | SL8-B-22 | 0.5 | no route | A/C pressure switch (PDSW) | — | |
| W68 | OEM-C-7 | SL8-B-23 | 0.5 | no route | Clutch switch (M/T) | — |
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) | 53.000 | ea |
ECU setup sheet
| Role | Engine ref | Engine signal | Sensor | ECU point | ECU function | ECU class | Setup flag |
|---|---|---|---|---|---|---|---|
| No configured channels. | |||||||
Findings
Open (19)
| Severity | Code | Subject | Message |
|---|---|---|---|
| warn | NET_FAMILY | OEM-A-20 ↔ SL8-A-18 | OEM-A-20 "EVAP purge cut-off solenoid (PGS)" [low_side_out] is wired to SL8-A-18 "Auxiliary output 9" [hbridge_out]. A half-bridge can act as a low-side switch only if configured that way. |
| warn | NET_FAMILY | OEM-A-9 ↔ SL8-A-19 | OEM-A-9 "Idle air control valve (IACV)" [low_side_out] is wired to SL8-A-19 "Auxiliary output 10" [hbridge_out]. A half-bridge can act as a low-side switch only if configured that way. |
| warn | NET_FAMILY | OEM-C-3 ↔ SL8-B-21 | OEM-C-3 "A/C switch (ACS)" [digital_in] is wired to SL8-B-21 "Analog input 8 (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-C-5 ↔ SL8-B-22 | OEM-C-5 "A/C pressure switch (PDSW)" [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-C-7 ↔ SL8-B-23 | OEM-C-7 "Clutch switch (M/T)" [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-5-F5 ↔ SL8-A-17 | OEM-5-F5 "Front VTEC solenoid valve" [high_side_out] is wired to SL8-A-17 "Auxiliary output 8" [switch_out]. Configure this output as high side. |
| info | NET_FAMILY | OEM-5-F7 ↔ SL8-A-10 | OEM-5-F7 "Rear VTEC solenoid valve" [high_side_out] is wired to SL8-A-10 "Auxiliary output 1" [switch_out]. Configure this output as high side. |
| info | NET_FAMILY | OEM-A-10 ↔ SL8-A-11 | OEM-A-10 "Front O2 sensor heater (HTCNTF)" [low_side_out] is wired to SL8-A-11 "Auxiliary output 2" [switch_out]. Configure this output as low side. |
| info | NET_FAMILY | OEM-A-11 ↔ SL8-A-13 | OEM-A-11 "EGR control solenoid" [low_side_out] is wired to SL8-A-13 "Auxiliary output 4" [switch_out]. Configure this output as low side. |
| info | NET_FAMILY | OEM-A-12 ↔ SL8-A-12 | OEM-A-12 "Rear O2 sensor heater (HTCNTR)" [low_side_out] is wired to SL8-A-12 "Auxiliary output 3" [switch_out]. Configure this output as low side. |
| info | NET_FAMILY | OEM-A-13 ↔ SL8-A-7 | OEM-A-13 "Check engine light (WARN)" [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-A-14 ↔ SL8-A-8 | OEM-A-14 "Chamber volume control solenoid (BPS)" [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-A-15 ↔ SL8-A-14 | OEM-A-15 "A/C clutch relay (ACC)" [low_side_out] is wired to SL8-A-14 "Auxiliary output 5" [switch_out]. Configure this output as low side. |
| info | NET_FAMILY | OEM-A-18 ↔ SL8-A-15 | OEM-A-18 "Radiator fan control (FANCNTR)" [low_side_out] is wired to SL8-A-15 "Auxiliary output 6" [switch_out]. Configure this output as low side. |
| info | NET_FAMILY | OEM-A-7 ↔ SL8-A-16 | OEM-A-7 "Main relay" [low_side_out] is wired to SL8-A-16 "Auxiliary output 7" [switch_out]. Configure this output as low side. |
| info | NET_FAMILY | OEM-B-14 ↔ SL8-B-6 | OEM-B-14 "CRNK 2M — TDC sensor return" [sensor_ground] is wired to SL8-B-6 "Crank index sensor −" [trigger_in]. Trigger return tied to sensor/trigger ground: correct for single-ended trigger inputs. |
| info | NET_FAMILY | OEM-D-13 ↔ SL8-B-15 | OEM-D-13 "Engine coolant temperature (ECT)" [temp_in] is wired to SL8-B-15 "Analog input 5" [analog_in]. Thermistor on a plain analog input needs a pull-up; check the channel can enable one. |
| info | NET_FAMILY | OEM-D-15 ↔ SL8-B-19 | OEM-D-15 "Intake air temperature (IAT)" [temp_in] is wired to SL8-B-19 "Analog input 6" [analog_in]. Thermistor on a plain analog input needs a pull-up; check the channel can enable one. |
| info | UNMAPPED | OEM | 11 optional OEM pins are not mapped: OEM-B-13 CRNK 2P — TDC sensor signal; OEM-B-9 CYL 2P — CYP sensor 2 signal; OEM-C-10 Traction control; OEM-C-12 Traction control; OEM-C-4 Tachometer output (NEP); OEM-C-6 Traction control; OEM-C-8 Traction control; OEM-C-9 Service check connector (SCS); OEM-D-5 Traction control; OEM-D-6 Fuel pump voltage monitor (VFP); OEM-D-8 Ignition timing adjuster (IGADJ) |
Accepted (1)
| Code | Subject | Reason | By |
|---|---|---|---|
| REQUIRED_UNMAPPED | OEM-D-1 | 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 Honda C30A not found in the ECU's docs (Emtron decoder list has no C30A/C32B/NSX (Honda K20/K24/F20C/F22C, Subaru EJ, Mazda MX5 only)) Auto-mapped by auto_map() from the library pin data on 2026-10-06. Review every wire against both manuals before building. Not wired: - OEM-D 1: Battery backup (VBU): Emtron SL8 has no battery-constant input; not needed - OEM-B 13: CRNK 2P — TDC sensor signal: no free crank_vr/frequency_in input on Emtron SL8 - OEM-B 9: CYL 2P — CYP sensor 2 signal: no free cam_vr/cam_hall/frequency_in input on Emtron SL8 - 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-C 4: Tachometer output (NEP): no free tacho/frequency_out/low_side/ls_hs on Emtron SL8 - OEM-C 9: Service check connector (SCS): no free switch_in/frequency_in/analog_0_5 on Emtron SL8 - OEM-D 8: Ignition timing adjuster (IGADJ): no free switch_in/frequency_in/analog_0_5 on Emtron SL8 - OEM-C 10: Traction control: not classified in the library; wire by hand - OEM-C 12: Traction control: not classified in the library; wire by hand - OEM-C 6: Traction control: not classified in the library; wire by hand - OEM-C 8: Traction control: not classified in the library; wire by hand - OEM-D 5: Traction control: not classified in the library; wire by hand - OEM-D 6: Fuel pump voltage monitor (VFP): not classified in the library; wire by hand - SL8-B 4: Ignition switch input: not fed (the stock ECU has no ignition-sense pin); feed it from a switched-ignition source
Sources
| Reliability | Kind | Title | URL | Archive | Captured | SHA-256 |
|---|---|---|---|---|---|---|
| 4 | vendor_doc | AEM EMS 30-1042 (Series 1) plug-and-play install manual — 1991-94 NSX | https://fancy-craft.firebaseapp.com/NSX/report/ecu/EMS_-_30-1042.pdf | archive | 2026-10-05 | 0cad10bc64b5 |
| 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 |
| 3 | vendor_doc | dodo-upgrades: Honda OBD1 V6 ECU pinout | https://dodo-upgrades.nl/index.php/obd1-v6-pinouts/ | archive | 2026-10-05 | f9539af28904 |