Honda NSX NA1 1991-2005 (C30A) → MaxxECU MaxxECU STREET REV9+ (auto)
Honda NSX NA1 1991-2005 (C30A) — MaxxECU — MaxxECU STREET
⚠ 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 | 49 wires · 11 connectors · 0 part lines |
| Tools | Crimp and extraction tools for each terminal family (see Connectors) · wire strippers · multimeter · heat gun + heat-shrink |
| Order of work | 1. Check every part against the parts list. 2. Cut and label every wire (labels: Export → Wire labels). 3. Crimp and pin connector by connector, ticking the build checklist. 4. Run the bench test with nothing plugged in and the battery disconnected. 5. Only then connect the ECU and power up. |
Build checklist
Tick each box as you go. Continuity: meter from end to end, expect under 1 Ω.
| Wire | From | To | Gauge | Colour | Cut | Label | Crimp A | Crimp B | Pin A | Pin B | Continuity |
|---|---|---|---|---|---|---|---|---|---|---|---|
| W1 | OEM-A-25 | SP-14V-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W2 | OEM-C-1 | SP-14V-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W3 | SP-14V-1 | MAXXECUSTREE-C1-M4 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W4 | OEM-A-23 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W5 | OEM-A-24 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W6 | OEM-B-2 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W7 | SP-GND-1 | MAXXECUSTREE-C1-L4 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W8 | OEM-A-26 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W9 | OEM-B-10 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W10 | OEM-B-12 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W11 | OEM-B-14 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W12 | OEM-B-16 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W13 | OEM-D-21 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W14 | OEM-D-22 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W15 | SP-0V-1 | MAXXECUSTREE-C1-H1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W16 | SP-0V-1 | MAXXECUSTREE-C1-H2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W17 | OEM-D-18 | SP-5V1-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W18 | OEM-D-19 | SP-5V1-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W19 | OEM-D-20 | SP-5V1-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W20 | SP-5V1-1 | MAXXECUSTREE-C1-G1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W21 | OEM-B-15 | MAXXECUSTREE-C1-H3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W22 | OEM-B-11 | MAXXECUSTREE-C1-H4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W23 | OEM-A-21 | MAXXECUSTREE-C1-A2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W24 | OEM-A-22 | MAXXECUSTREE-C1-A3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W25 | OEM-B-8 | MAXXECUSTREE-C1-B2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W26 | OEM-B-6 | MAXXECUSTREE-C1-B3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W27 | OEM-B-4 | MAXXECUSTREE-C1-C2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W28 | OEM-B-3 | MAXXECUSTREE-C1-C3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W29 | OEM-A-1 | MAXXECUSTREE-C1-K1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W30 | OEM-A-3 | MAXXECUSTREE-C1-K2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W31 | OEM-A-5 | MAXXECUSTREE-C1-M1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W32 | OEM-A-2 | MAXXECUSTREE-C1-M2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W33 | OEM-A-4 | MAXXECUSTREE-C1-M3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W34 | OEM-A-6 | MAXXECUSTREE-C1-L3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W35 | OEM-D-17 | MAXXECUSTREE-C1-J3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W36 | OEM-D-11 | MAXXECUSTREE-C1-G2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W37 | OEM-D-13 | MAXXECUSTREE-C1-F1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W38 | OEM-A-8 | MAXXECUSTREE-C1-B4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W39 | OEM-A-15 | MAXXECUSTREE-C1-C4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W40 | OEM-A-18 | MAXXECUSTREE-C1-D4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W41 | OEM-A-7 | MAXXECUSTREE-C1-A4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W42 | OEM-5-F5 | RLY1-R-OUT | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W43 | SP-14V-1 | RLY1-R-IN | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W44 | SP-14V-1 | RLY1-R-COIL+ | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W45 | RLY1-R-COIL- | MAXXECUSTREE-C1-D1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W46 | OEM-D-14 | MAXXECUSTREE-C1-J4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W47 | OEM-D-15 | MAXXECUSTREE-C1-F2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W48 | OEM-C-2 | MAXXECUSTREE-C1-K3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W49 | OEM-D-9 | MAXXECUSTREE-C1-K4 | 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 | MAXXECUSTREE-C1-M4 | MAXXECUSTREE-C1-H1 | open (OL) | +12 V supply must not touch sensor ground | |
| 2 | MAXXECUSTREE-C1-G1 | RLY1-R-OUT | open (OL) | 5 V sensor reference must not touch +12 V supply | |
| 3 | MAXXECUSTREE-C1-H1 | MAXXECUSTREE-C1-G1 | open (OL) | sensor ground must not touch 5 V sensor reference | |
| 4 | MAXXECUSTREE-C1-H1 | RLY1-R-OUT | open (OL) | sensor ground must not touch +12 V supply | |
| 5 | MAXXECUSTREE-C1-L4 | MAXXECUSTREE-C1-G1 | open (OL) | power ground must not touch 5 V sensor reference | |
| 6 | MAXXECUSTREE-C1-L4 | MAXXECUSTREE-C1-M4 | open (OL) | power ground must not touch +12 V supply | |
| 7 | MAXXECUSTREE-C1-L4 | RLY1-R-OUT | open (OL) | power ground must not touch +12 V supply | |
| 8 | MAXXECUSTREE-C1-M4 | MAXXECUSTREE-C1-G1 | open (OL) | +12 V supply must not touch 5 V sensor reference |
If any reading doesn't match, stop and get help before powering up.
Revisions
| Rev | Label | By | Date |
|---|---|---|---|
| No revisions yet. | |||
Schematic
Connectors
MAXXECUSTREE-C1
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| A2 | IGN 1 | — | W23 | — | 0.5 | OEM-A-21 | — | — | — |
| A3 | IGN 2 | — | W24 | — | 0.5 | OEM-A-22 | — | — | — |
| A4 | GPO 8/TACHO | — | W41 | — | 0.5 | OEM-A-7 | — | — | — |
| B2 | IGN 3 | — | W25 | — | 0.5 | OEM-B-8 | — | — | — |
| B3 | IGN 4 | — | W26 | — | 0.5 | OEM-B-6 | — | — | — |
| B4 | GPO 1 | — | W38 | — | 0.5 | OEM-A-8 | — | — | — |
| C2 | IGN 5 | — | W27 | — | 0.5 | OEM-B-4 | — | — | — |
| C3 | IGN 6 | — | W28 | — | 0.5 | OEM-B-3 | — | — | — |
| C4 | GPO 2 | — | W39 | — | 0.5 | OEM-A-15 | — | — | — |
| D1 | WBO2 Heater- | — | W45 | — | 0.5 | RLY1-R-COIL- | — | — | — |
| D4 | GPO 3 | — | W40 | — | 0.5 | OEM-A-18 | — | — | — |
| E1 | CAN H | — | — | — | — | — | — | — | — |
| E2 | CAN L | — | — | — | — | — | — | — | — |
| E3 | GND Shield | — | — | — | — | — | — | — | — |
| F1 | CLT | — | W37 | — | 0.5 | OEM-D-13 | — | — | — |
| F2 | IAT | — | W47 | — | 0.5 | OEM-D-15 | — | — | — |
| F3 | WBO2 VREF | — | — | — | — | — | — | — | — |
| F4 | WBO2 VS | — | — | — | — | — | — | — | — |
| G1 | +5V sensor supply | — | W20 | — | 0.5 | SP-5V1-1 | — | — | — |
| G2 | TPS/AIN | — | W36 | — | 0.5 | OEM-D-11 | — | — | — |
| G3 | WBO2 IP | — | — | — | — | — | — | — | — |
| G4 | WBO2 RCAL | — | — | — | — | — | — | — | — |
| H1 | Sensor GND | — | W15 | — | 0.5 | SP-0V-1 | — | — | — |
| H2 | Trigger GND | — | W16 | — | 0.5 | SP-0V-1 | — | — | — |
| H3 | TRIGGER | — | W21 | — | 0.5 | OEM-B-15 | — | — | — |
| H4 | HOME | — | W22 | — | 0.5 | OEM-B-11 | — | — | — |
| J1 | AIN 1 (temperature) | — | — | — | — | — | — | — | — |
| J2 | AIN 2 (Temperature) | — | — | — | — | — | — | — | — |
| J3 | AIN 3 (0-5V) | — | W35 | — | 0.5 | OEM-D-17 | — | — | — |
| J4 | AIN 4 (0-5V) | — | W46 | — | 0.5 | OEM-D-14 | — | — | — |
| K1 | INJ 1 | — | W29 | — | 0.5 | OEM-A-1 | — | — | — |
| K2 | INJ 2 | — | W30 | — | 0.5 | OEM-A-3 | — | — | — |
| K3 | DIN 1 | — | W48 | — | 0.5 | OEM-C-2 | — | — | — |
| K4 | DIN 2 | — | W49 | — | 0.5 | OEM-D-9 | — | — | — |
| L3 | INJ 6 | — | W34 | — | 0.5 | OEM-A-6 | — | — | — |
| L4 | Engine GND | — | W7 | — | 0.85 | SP-GND-1 | — | — | — |
| M1 | INJ 3 | — | W31 | — | 0.5 | OEM-A-5 | — | — | — |
| M2 | INJ 4 | — | W32 | — | 0.5 | OEM-A-2 | — | — | — |
| M3 | INJ 5 | — | W33 | — | 0.5 | OEM-A-4 | — | — | — |
| M4 | +12V ECU power supply | — | W3 | — | 0.85 | SP-14V-1 | — | — | — |
OEM-5
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| F2 | Front VTEC pressure switch | — | — | — | — | — | — | — | — |
| F4 | Rear VTEC pressure switch | — | — | — | — | — | — | — | — |
| F5 | Front VTEC solenoid valve | — | W42 | — | 0.5 | RLY1-R-OUT | — | — | — |
| F7 | Rear VTEC solenoid valve | — | — | — | — | — | — | — | — |
OEM-A
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Injector 1 | — | W29 | — | 0.5 | MAXXECUSTREE-C1-K1 | — | — | — |
| 10 | Front O2 sensor heater (HTCNTF) | — | — | — | — | — | — | — | — |
| 11 | EGR control solenoid | — | — | — | — | — | — | — | — |
| 12 | Rear O2 sensor heater (HTCNTR) | — | — | — | — | — | — | — | — |
| 13 | Check engine light (WARN) | — | — | — | — | — | — | — | — |
| 14 | Chamber volume control solenoid (BPS) | — | — | — | — | — | — | — | — |
| 15 | A/C clutch relay (ACC) | — | W39 | — | 0.5 | MAXXECUSTREE-C1-C4 | — | — | — |
| 18 | Radiator fan control (FANCNTR) | — | W40 | — | 0.5 | MAXXECUSTREE-C1-D4 | — | — | — |
| 2 | Injector 4 | — | W32 | — | 0.5 | MAXXECUSTREE-C1-M2 | — | — | — |
| 20 | EVAP purge cut-off solenoid (PGS) | — | — | — | — | — | — | — | — |
| 21 | Ignition coil 1 | — | W23 | — | 0.5 | MAXXECUSTREE-C1-A2 | — | — | — |
| 22 | Ignition coil 2 | — | W24 | — | 0.5 | MAXXECUSTREE-C1-A3 | — | — | — |
| 23 | Power ground (PG1) | — | W4 | — | 0.85 | SP-GND-1 | — | — | — |
| 24 | Power ground (PG2) | — | W5 | — | 0.85 | SP-GND-1 | — | — | — |
| 25 | ECU power (IGP1) | — | W1 | — | 0.85 | SP-14V-1 | — | — | — |
| 26 | Sensor ground (LG1) | — | W8 | — | 0.5 | SP-0V-1 | — | — | — |
| 3 | Injector 2 | — | W30 | — | 0.5 | MAXXECUSTREE-C1-K2 | — | — | — |
| 4 | Injector 5 | — | W33 | — | 0.5 | MAXXECUSTREE-C1-M3 | — | — | — |
| 5 | Injector 3 | — | W31 | — | 0.5 | MAXXECUSTREE-C1-M1 | — | — | — |
| 6 | Injector 6 | — | W34 | — | 0.5 | MAXXECUSTREE-C1-L3 | — | — | — |
| 7 | Main relay | — | W41 | — | 0.5 | MAXXECUSTREE-C1-A4 | — | — | — |
| 8 | Fuel pump relay 2 (FLR2) | — | W38 | — | 0.5 | MAXXECUSTREE-C1-B4 | — | — | — |
| 9 | Idle air control valve (IACV) | — | — | — | — | — | — | — | — |
OEM-B
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 10 | CYL 2M — CYP sensor 2 return | — | W9 | — | 0.5 | SP-0V-1 | — | — | — |
| 11 | CYL 1P — CYP sensor 1 signal | — | W22 | — | 0.5 | MAXXECUSTREE-C1-H4 | — | — | — |
| 12 | CYL 1M — CYP sensor 1 return | — | W10 | — | 0.5 | SP-0V-1 | — | — | — |
| 13 | CRNK 2P — TDC sensor signal | — | — | — | — | — | — | — | — |
| 14 | CRNK 2M — TDC sensor return | — | W11 | — | 0.5 | SP-0V-1 | — | — | — |
| 15 | CRNK 1P — crank sensor signal | — | W21 | — | 0.5 | MAXXECUSTREE-C1-H3 | — | — | — |
| 16 | CRNK 1M — crank sensor return | — | W12 | — | 0.5 | SP-0V-1 | — | — | — |
| 2 | Chassis ground (LG2) | — | W6 | — | 0.85 | SP-GND-1 | — | — | — |
| 3 | Ignition coil 6 | — | W28 | — | 0.5 | MAXXECUSTREE-C1-C3 | — | — | — |
| 4 | Ignition coil 5 | — | W27 | — | 0.5 | MAXXECUSTREE-C1-C2 | — | — | — |
| 6 | Ignition coil 4 | — | W26 | — | 0.5 | MAXXECUSTREE-C1-B3 | — | — | — |
| 7 | Neutral switch (M/T) / gear position (A/T) | — | — | — | — | — | — | — | — |
| 8 | Ignition coil 3 | — | W25 | — | 0.5 | MAXXECUSTREE-C1-B2 | — | — | — |
| 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) | — | — | — | — | — | — | — | — |
| 12 | Traction control | — | — | — | — | — | — | — | — |
| 2 | Vehicle speed sensor (VSS) | — | W48 | — | 0.5 | MAXXECUSTREE-C1-K3 | — | — | — |
| 3 | A/C switch (ACS) | — | — | — | — | — | — | — | — |
| 4 | Tachometer output (NEP) | — | — | — | — | — | — | — | — |
| 5 | A/C pressure switch (PDSW) | — | — | — | — | — | — | — | — |
| 6 | Traction control | — | — | — | — | — | — | — | — |
| 7 | Clutch switch (M/T) | — | — | — | — | — | — | — | — |
| 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) | — | W36 | — | 0.5 | MAXXECUSTREE-C1-G2 | — | — | — |
| 12 | EGR lift sensor (EGRL) | — | — | — | — | — | — | — | — |
| 13 | Engine coolant temperature (ECT) | — | W37 | — | 0.5 | MAXXECUSTREE-C1-F1 | — | — | — |
| 14 | Primary O2 sensor | — | W46 | — | 0.5 | MAXXECUSTREE-C1-J4 | — | — | — |
| 15 | Intake air temperature (IAT) | — | W47 | — | 0.5 | MAXXECUSTREE-C1-F2 | — | — | — |
| 16 | Secondary O2 sensor | — | — | — | — | — | — | — | — |
| 17 | MAP sensor | — | W35 | — | 0.5 | MAXXECUSTREE-C1-J3 | — | — | — |
| 18 | +5V sensor supply (VCC) | — | W17 | — | 0.5 | SP-5V1-1 | — | — | — |
| 19 | +5V sensor supply (VCC) | — | W18 | — | 0.5 | SP-5V1-1 | — | — | — |
| 20 | +5V sensor supply (VCC) | — | W19 | — | 0.5 | SP-5V1-1 | — | — | — |
| 21 | Sensor ground (SG) | — | W13 | — | 0.5 | SP-0V-1 | — | — | — |
| 22 | Sensor ground (SG) | — | W14 | — | 0.5 | SP-0V-1 | — | — | — |
| 3 | Knock sensor — rear | — | — | — | — | — | — | — | — |
| 4 | Knock sensor — front | — | — | — | — | — | — | — | — |
| 5 | Traction control | — | — | — | — | — | — | — | — |
| 6 | Fuel pump voltage monitor (VFP) | — | — | — | — | — | — | — | — |
| 8 | Ignition timing adjuster (IGADJ) | — | — | — | — | — | — | — | — |
| 9 | Alternator FR signal | — | W49 | — | 0.5 | MAXXECUSTREE-C1-K4 | — | — | — |
RLY1-R
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| COIL+ | Relay coil positive (switched +12 V) | — | W44 | — | 0.5 | SP-14V-1 | — | — | — |
| COIL- | Relay coil negative (ECU low-side driver) | — | W45 | — | 0.5 | MAXXECUSTREE-C1-D1 | — | — | — |
| IN | Relay contact input (switched +12 V) | — | W43 | — | 0.5 | SP-14V-1 | — | — | — |
| OUT | Relay contact output (switched +12 V to load) | — | W42 | — | 0.5 | OEM-5-F5 | — | — | — |
SP-0V
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W8 | — | 0.5 | OEM-A-26 | — | — | — |
| 1 | — | — | W9 | — | 0.5 | OEM-B-10 | — | — | — |
| 1 | — | — | W10 | — | 0.5 | OEM-B-12 | — | — | — |
| 1 | — | — | W11 | — | 0.5 | OEM-B-14 | — | — | — |
| 1 | — | — | W12 | — | 0.5 | OEM-B-16 | — | — | — |
| 1 | — | — | W13 | — | 0.5 | OEM-D-21 | — | — | — |
| 1 | — | — | W14 | — | 0.5 | OEM-D-22 | — | — | — |
| 1 | — | — | W15 | — | 0.5 | MAXXECUSTREE-C1-H1 | — | — | — |
| 1 | — | — | W16 | — | 0.5 | MAXXECUSTREE-C1-H2 | — | — | — |
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 | MAXXECUSTREE-C1-M4 | — | — | — |
| 1 | — | — | W43 | — | 0.5 | RLY1-R-IN | — | — | — |
| 1 | — | — | W44 | — | 0.5 | RLY1-R-COIL+ | — | — | — |
SP-5V1
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W17 | — | 0.5 | OEM-D-18 | — | — | — |
| 1 | — | — | W18 | — | 0.5 | OEM-D-19 | — | — | — |
| 1 | — | — | W19 | — | 0.5 | OEM-D-20 | — | — | — |
| 1 | — | — | W20 | — | 0.5 | MAXXECUSTREE-C1-G1 | — | — | — |
SP-GND
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W4 | — | 0.85 | OEM-A-23 | — | — | — |
| 1 | — | — | W5 | — | 0.85 | OEM-A-24 | — | — | — |
| 1 | — | — | W6 | — | 0.85 | OEM-B-2 | — | — | — |
| 1 | — | — | W7 | — | 0.85 | MAXXECUSTREE-C1-L4 | — | — | — |
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 | — | — | — | single_source | |
| OEM-5-F4 | Rear VTEC pressure switch | digital_in | — | — | — | single_source | |
| OEM-5-F5 | Front VTEC solenoid valve | high_side_out | RLY1-R-OUT | Relay contact output (switched +12 V to load) | power_out | single_source | |
| OEM-5-F7 | Rear VTEC solenoid valve | high_side_out | — | — | — | single_source | |
| OEM-A-1 | Injector 1 | injector_out | MAXXECUSTREE-C1-K1 | INJ 1 | injector_out | single_source | |
| OEM-A-10 | Front O2 sensor heater (HTCNTF) | low_side_out | — | — | — | single_source | |
| OEM-A-11 | EGR control solenoid | low_side_out | — | — | — | single_source | |
| OEM-A-12 | Rear O2 sensor heater (HTCNTR) | low_side_out | — | — | — | single_source | |
| OEM-A-13 | Check engine light (WARN) | low_side_out | — | — | — | single_source | |
| OEM-A-14 | Chamber volume control solenoid (BPS) | low_side_out | — | — | — | single_source | |
| OEM-A-15 | A/C clutch relay (ACC) | low_side_out | MAXXECUSTREE-C1-C4 | GPO 2 | low_side_out | single_source | |
| OEM-A-18 | Radiator fan control (FANCNTR) | low_side_out | MAXXECUSTREE-C1-D4 | GPO 3 | low_side_out | single_source | |
| OEM-A-2 | Injector 4 | injector_out | MAXXECUSTREE-C1-M2 | INJ 4 | injector_out | single_source | |
| OEM-A-20 | EVAP purge cut-off solenoid (PGS) | low_side_out | — | — | — | single_source | |
| OEM-A-21 | Ignition coil 1 | ignition_out | MAXXECUSTREE-C1-A2 | IGN 1 | ignition_out | single_source | |
| OEM-A-22 | Ignition coil 2 | ignition_out | MAXXECUSTREE-C1-A3 | IGN 2 | ignition_out | single_source | |
| OEM-A-23 | Power ground (PG1) | ground | MAXXECUSTREE-C1-L4 | Engine GND | ground | single_source | |
| OEM-A-24 | Power ground (PG2) | ground | MAXXECUSTREE-C1-L4 | Engine GND | ground | single_source | |
| OEM-A-25 | ECU power (IGP1) | power_in | MAXXECUSTREE-C1-M4 + RLY1-R-COIL+ + RLY1-R-IN | +12V ECU power supply + Relay coil positive (switched +12 V) + Relay contact input (switched +12 V) | power_in + power_out | single_source | |
| OEM-A-26 | Sensor ground (LG1) | sensor_ground | MAXXECUSTREE-C1-H1 + MAXXECUSTREE-C1-H2 | Sensor GND + Trigger GND | sensor_ground | single_source | |
| OEM-A-3 | Injector 2 | injector_out | MAXXECUSTREE-C1-K2 | INJ 2 | injector_out | single_source | |
| OEM-A-4 | Injector 5 | injector_out | MAXXECUSTREE-C1-M3 | INJ 5 | injector_out | corroborated | |
| OEM-A-5 | Injector 3 | injector_out | MAXXECUSTREE-C1-M1 | INJ 3 | injector_out | single_source | |
| OEM-A-6 | Injector 6 | injector_out | MAXXECUSTREE-C1-L3 | INJ 6 | injector_out | single_source | |
| OEM-A-7 | Main relay | low_side_out | MAXXECUSTREE-C1-A4 | GPO 8/TACHO | low_side_out | single_source | |
| OEM-A-8 | Fuel pump relay 2 (FLR2) | low_side_out | MAXXECUSTREE-C1-B4 | GPO 1 | low_side_out | single_source | |
| OEM-A-9 | Idle air control valve (IACV) | low_side_out | — | — | — | single_source | |
| OEM-B-10 | CYL 2M — CYP sensor 2 return | sensor_ground | MAXXECUSTREE-C1-H1 + MAXXECUSTREE-C1-H2 | Sensor GND + Trigger GND | sensor_ground | single_source | |
| OEM-B-11 | CYL 1P — CYP sensor 1 signal | trigger_in | MAXXECUSTREE-C1-H4 | HOME | trigger_in | single_source | |
| OEM-B-12 | CYL 1M — CYP sensor 1 return | sensor_ground | MAXXECUSTREE-C1-H1 + MAXXECUSTREE-C1-H2 | Sensor GND + Trigger GND | sensor_ground | single_source | |
| OEM-B-13 | CRNK 2P — TDC sensor signal | trigger_in | — | — | — | single_source | |
| OEM-B-14 | CRNK 2M — TDC sensor return | sensor_ground | MAXXECUSTREE-C1-H1 + MAXXECUSTREE-C1-H2 | Sensor GND + Trigger GND | sensor_ground | single_source | |
| OEM-B-15 | CRNK 1P — crank sensor signal | trigger_in | MAXXECUSTREE-C1-H3 | TRIGGER | trigger_in | single_source | |
| OEM-B-16 | CRNK 1M — crank sensor return | sensor_ground | MAXXECUSTREE-C1-H1 + MAXXECUSTREE-C1-H2 | Sensor GND + Trigger GND | sensor_ground | single_source | |
| OEM-B-2 | Chassis ground (LG2) | ground | MAXXECUSTREE-C1-L4 | Engine GND | ground | single_source | |
| OEM-B-3 | Ignition coil 6 | ignition_out | MAXXECUSTREE-C1-C3 | IGN 6 | ignition_out | single_source | |
| OEM-B-4 | Ignition coil 5 | ignition_out | MAXXECUSTREE-C1-C2 | IGN 5 | ignition_out | single_source | |
| OEM-B-6 | Ignition coil 4 | ignition_out | MAXXECUSTREE-C1-B3 | IGN 4 | ignition_out | single_source | |
| OEM-B-7 | Neutral switch (M/T) / gear position (A/T) | digital_in | — | — | — | single_source | |
| OEM-B-8 | Ignition coil 3 | ignition_out | MAXXECUSTREE-C1-B2 | IGN 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 | MAXXECUSTREE-C1-M4 + RLY1-R-COIL+ + RLY1-R-IN | +12V ECU power supply + Relay coil positive (switched +12 V) + Relay contact input (switched +12 V) | power_in + power_out | single_source | |
| OEM-C-10 | Traction control | — | — | — | — | single_source | |
| OEM-C-11 | Starter switch (STS) | digital_in | — | — | — | single_source | |
| OEM-C-12 | Traction control | — | — | — | — | single_source | |
| OEM-C-2 | Vehicle speed sensor (VSS) | digital_in | MAXXECUSTREE-C1-K3 | DIN 1 | digital_in | single_source | |
| OEM-C-3 | A/C switch (ACS) | digital_in | — | — | — | single_source | |
| OEM-C-4 | Tachometer output (NEP) | tacho_out | — | — | — | single_source | |
| OEM-C-5 | A/C pressure switch (PDSW) | digital_in | — | — | — | single_source | |
| OEM-C-6 | Traction control | — | — | — | — | single_source | |
| OEM-C-7 | Clutch switch (M/T) | digital_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 | MAXXECUSTREE-C1-G2 | TPS/AIN | analog_in | single_source | |
| OEM-D-12 | EGR lift sensor (EGRL) | analog_in | — | — | — | single_source | |
| OEM-D-13 | Engine coolant temperature (ECT) | temp_in | MAXXECUSTREE-C1-F1 | CLT | temp_in | single_source | |
| OEM-D-14 | Primary O2 sensor | lambda_nb_in | MAXXECUSTREE-C1-J4 | AIN 4 (0-5V) | analog_in | single_source | |
| OEM-D-15 | Intake air temperature (IAT) | temp_in | MAXXECUSTREE-C1-F2 | IAT | temp_in | single_source | |
| OEM-D-16 | Secondary O2 sensor | lambda_nb_in | — | — | — | single_source | |
| OEM-D-17 | MAP sensor | analog_in | MAXXECUSTREE-C1-J3 | AIN 3 (0-5V) | analog_in | single_source | |
| OEM-D-18 | +5V sensor supply (VCC) | vref | MAXXECUSTREE-C1-G1 | +5V sensor supply | vref | single_source | |
| OEM-D-19 | +5V sensor supply (VCC) | vref | MAXXECUSTREE-C1-G1 | +5V sensor supply | vref | single_source | |
| OEM-D-20 | +5V sensor supply (VCC) | vref | MAXXECUSTREE-C1-G1 | +5V sensor supply | vref | single_source | |
| OEM-D-21 | Sensor ground (SG) | sensor_ground | MAXXECUSTREE-C1-H1 + MAXXECUSTREE-C1-H2 | Sensor GND + Trigger GND | sensor_ground | single_source | |
| OEM-D-22 | Sensor ground (SG) | sensor_ground | MAXXECUSTREE-C1-H1 + MAXXECUSTREE-C1-H2 | Sensor GND + Trigger GND | sensor_ground | single_source | |
| OEM-D-3 | Knock sensor — rear | knock_in | — | — | — | single_source | |
| OEM-D-4 | Knock sensor — front | 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 | MAXXECUSTREE-C1-K4 | DIN 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 | MAXXECUSTREE-C1-M4 | 0.85 | no route | +12V ECU power supply | — | |
| W4 | OEM-A-23 | SP-GND-1 | 0.85 | no route | Power ground (PG1) | — | |
| W5 | OEM-A-24 | SP-GND-1 | 0.85 | no route | Power ground (PG2) | — | |
| W6 | OEM-B-2 | SP-GND-1 | 0.85 | no route | Chassis ground (LG2) | — | |
| W7 | SP-GND-1 | MAXXECUSTREE-C1-L4 | 0.85 | no route | Engine GND | — | |
| W8 | OEM-A-26 | SP-0V-1 | 0.5 | no route | Sensor ground (LG1) | — | |
| W9 | OEM-B-10 | SP-0V-1 | 0.5 | no route | CYL 2M — CYP sensor 2 return | — | |
| W10 | OEM-B-12 | SP-0V-1 | 0.5 | no route | CYL 1M — CYP sensor 1 return | — | |
| W11 | OEM-B-14 | SP-0V-1 | 0.5 | no route | CRNK 2M — TDC sensor return | — | |
| W12 | OEM-B-16 | SP-0V-1 | 0.5 | no route | CRNK 1M — crank sensor return | — | |
| W13 | OEM-D-21 | SP-0V-1 | 0.5 | no route | Sensor ground (SG) | — | |
| W14 | OEM-D-22 | SP-0V-1 | 0.5 | no route | Sensor ground (SG) | — | |
| W15 | SP-0V-1 | MAXXECUSTREE-C1-H1 | 0.5 | no route | Sensor GND | — | |
| W16 | SP-0V-1 | MAXXECUSTREE-C1-H2 | 0.5 | no route | Trigger GND | — | |
| W17 | OEM-D-18 | SP-5V1-1 | 0.5 | no route | +5V sensor supply (VCC) | — | |
| W18 | OEM-D-19 | SP-5V1-1 | 0.5 | no route | +5V sensor supply (VCC) | — | |
| W19 | OEM-D-20 | SP-5V1-1 | 0.5 | no route | +5V sensor supply (VCC) | — | |
| W20 | SP-5V1-1 | MAXXECUSTREE-C1-G1 | 0.5 | no route | +5V sensor supply | — | |
| W21 | OEM-B-15 | MAXXECUSTREE-C1-H3 | 0.5 | no route | CRNK 1P — crank sensor signal | — | |
| W22 | OEM-B-11 | MAXXECUSTREE-C1-H4 | 0.5 | no route | CYL 1P — CYP sensor 1 signal | — | |
| W23 | OEM-A-21 | MAXXECUSTREE-C1-A2 | 0.5 | no route | Ignition coil 1 | — | |
| W24 | OEM-A-22 | MAXXECUSTREE-C1-A3 | 0.5 | no route | Ignition coil 2 | — | |
| W25 | OEM-B-8 | MAXXECUSTREE-C1-B2 | 0.5 | no route | Ignition coil 3 | — | |
| W26 | OEM-B-6 | MAXXECUSTREE-C1-B3 | 0.5 | no route | Ignition coil 4 | — | |
| W27 | OEM-B-4 | MAXXECUSTREE-C1-C2 | 0.5 | no route | Ignition coil 5 | — | |
| W28 | OEM-B-3 | MAXXECUSTREE-C1-C3 | 0.5 | no route | Ignition coil 6 | — | |
| W29 | OEM-A-1 | MAXXECUSTREE-C1-K1 | 0.5 | no route | Injector 1 | — | |
| W30 | OEM-A-3 | MAXXECUSTREE-C1-K2 | 0.5 | no route | Injector 2 | — | |
| W31 | OEM-A-5 | MAXXECUSTREE-C1-M1 | 0.5 | no route | Injector 3 | — | |
| W32 | OEM-A-2 | MAXXECUSTREE-C1-M2 | 0.5 | no route | Injector 4 | — | |
| W33 | OEM-A-4 | MAXXECUSTREE-C1-M3 | 0.5 | no route | Injector 5 | — | |
| W34 | OEM-A-6 | MAXXECUSTREE-C1-L3 | 0.5 | no route | Injector 6 | — | |
| W35 | OEM-D-17 | MAXXECUSTREE-C1-J3 | 0.5 | no route | MAP sensor | — | |
| W36 | OEM-D-11 | MAXXECUSTREE-C1-G2 | 0.5 | no route | Throttle position sensor (TPS) | — | |
| W37 | OEM-D-13 | MAXXECUSTREE-C1-F1 | 0.5 | no route | Engine coolant temperature (ECT) | — | |
| W38 | OEM-A-8 | MAXXECUSTREE-C1-B4 | 0.5 | no route | Fuel pump relay 2 (FLR2) | — | |
| W39 | OEM-A-15 | MAXXECUSTREE-C1-C4 | 0.5 | no route | A/C clutch relay (ACC) | — | |
| W40 | OEM-A-18 | MAXXECUSTREE-C1-D4 | 0.5 | no route | Radiator fan control (FANCNTR) | — | |
| W41 | OEM-A-7 | MAXXECUSTREE-C1-A4 | 0.5 | no route | Main relay | — | |
| W42 | OEM-5-F5 | RLY1-R-OUT | 0.5 | no route | Front VTEC solenoid valve | — | |
| W43 | SP-14V-1 | RLY1-R-IN | 0.5 | no route | Relay contact input (switched +12 V) | — | |
| W44 | SP-14V-1 | RLY1-R-COIL+ | 0.5 | no route | Relay coil positive (switched +12 V) | — | |
| W45 | RLY1-R-COIL- | MAXXECUSTREE-C1-D1 | 0.5 | no route | Relay coil negative (ECU low-side driver) | — | |
| W46 | OEM-D-14 | MAXXECUSTREE-C1-J4 | 0.5 | no route | Primary O2 sensor | — | |
| W47 | OEM-D-15 | MAXXECUSTREE-C1-F2 | 0.5 | no route | Intake air temperature (IAT) | — | |
| W48 | OEM-C-2 | MAXXECUSTREE-C1-K3 | 0.5 | no route | Vehicle speed sensor (VSS) | — | |
| W49 | OEM-D-9 | MAXXECUSTREE-C1-K4 | 0.5 | no route | Alternator FR signal | — |
Bill of materials
| Category | Part number | Manufacturer | Description | Qty | Unit |
|---|
ECU setup sheet
| Role | Engine ref | Engine signal | Sensor | ECU point | ECU function | ECU class | Setup flag |
|---|---|---|---|---|---|---|---|
| No configured channels. | |||||||
Findings
Open (2)
| Severity | Code | Subject | Message |
|---|---|---|---|
| error | INJECTOR_BALLAST | MaxxECU STREET | The C30A injectors (NSX fuel injector) are low-impedance, but MaxxECU STREET drives saturated (high-Z) injectors only. Add a ballast resistor pack in series with each injector, or use an ECU with low-Z / peak-and-hold injector drivers. |
| info | UNMAPPED | OEM | 30 optional OEM pins are not mapped: OEM-5-F2 Front VTEC pressure switch; OEM-5-F4 Rear VTEC pressure switch; OEM-5-F7 Rear VTEC solenoid valve; OEM-A-10 Front O2 sensor heater (HTCNTF); OEM-A-11 EGR control solenoid; OEM-A-12 Rear O2 sensor heater (HTCNTR); OEM-A-13 Check engine light (WARN); OEM-A-14 Chamber volume control solenoid (BPS); OEM-A-20 EVAP purge cut-off solenoid (PGS); OEM-A-9 Idle air control valve (IACV); OEM-B-13 CRNK 2P — TDC sensor signal; OEM-B-7 Neutral switch (M/T) / gear position (A/T); OEM-B-9 CYL 2P — CYP sensor 2 signal; OEM-C-10 Traction control; OEM-C-11 Starter switch (STS); OEM-C-12 Traction control; OEM-C-3 A/C switch (ACS); OEM-C-4 Tachometer output (NEP); OEM-C-5 A/C pressure switch (PDSW); OEM-C-6 Traction control; OEM-C-7 Clutch switch (M/T); OEM-C-8 Traction control; OEM-C-9 Service check connector (SCS); OEM-D-12 EGR lift sensor (EGRL); OEM-D-16 Secondary O2 sensor; OEM-D-3 Knock sensor — rear; OEM-D-4 Knock sensor — front; 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 (MaxxECU trigger list has no C30A/C32B/NSX (Honda K20/K20A2/K20Z4/F20C only)) - No knock input; the stock knock sensor would be unused Auto-mapped by auto_map() from the library pin data on 2026-10-11. Review every wire against both manuals before building. Not wired: - OEM-D 1: Battery backup (VBU): MaxxECU MaxxECU STREET has no battery-constant input; not needed - OEM-B 13: CRNK 2P — TDC sensor signal: no free crank_vr/frequency_in input on MaxxECU MaxxECU STREET - OEM-B 9: CYL 2P — CYP sensor 2 signal: no free cam_vr/cam_hall/frequency_in input on MaxxECU MaxxECU STREET - OEM-D 4: Knock sensor — front: no free knock input on MaxxECU MaxxECU STREET - OEM-D 3: Knock sensor — rear: no free knock input on MaxxECU MaxxECU STREET - OEM-5 F7: Rear VTEC solenoid valve: no free high_side/ls_hs on MaxxECU MaxxECU STREET - OEM-A 10: Front O2 sensor heater (HTCNTF): no free heater_low_side/low_side/relay_control/ls_hs/injector on MaxxECU MaxxECU STREET - OEM-A 12: Rear O2 sensor heater (HTCNTR): no free heater_low_side/low_side/relay_control/ls_hs/injector on MaxxECU MaxxECU STREET - OEM-A 11: EGR control solenoid: no free low_side/relay_control/heater_low_side/ls_hs/injector on MaxxECU MaxxECU STREET - OEM-A 13: Check engine light (WARN): no free low_side/relay_control/heater_low_side/ls_hs/injector on MaxxECU MaxxECU STREET - OEM-A 14: Chamber volume control solenoid (BPS): no free low_side/relay_control/heater_low_side/ls_hs/injector on MaxxECU MaxxECU STREET - OEM-A 20: EVAP purge cut-off solenoid (PGS): no free low_side/relay_control/heater_low_side/ls_hs/injector on MaxxECU MaxxECU STREET - OEM-A 9: Idle air control valve (IACV): no free low_side/relay_control/heater_low_side/ls_hs/injector on MaxxECU MaxxECU STREET - OEM-C 4: Tachometer output (NEP): no free tacho/frequency_out/low_side/ls_hs on MaxxECU MaxxECU STREET - OEM-D 16: Secondary O2 sensor: no free o2_narrowband/analog_0_5 on MaxxECU MaxxECU STREET - OEM-D 12: EGR lift sensor (EGRL): no free analog_0_5 on MaxxECU MaxxECU STREET - OEM-5 F2: Front VTEC pressure switch: no free switch_in/frequency_in/analog_0_5 on MaxxECU MaxxECU STREET - OEM-5 F4: Rear VTEC pressure switch: no free switch_in/frequency_in/analog_0_5 on MaxxECU MaxxECU STREET - OEM-B 7: Neutral switch (M/T) / gear position (A/T): no free switch_in/frequency_in/analog_0_5 on MaxxECU MaxxECU STREET - OEM-C 11: Starter switch (STS): no free switch_in/frequency_in/analog_0_5 on MaxxECU MaxxECU STREET - OEM-C 3: A/C switch (ACS): no free switch_in/frequency_in/analog_0_5 on MaxxECU MaxxECU STREET - OEM-C 5: A/C pressure switch (PDSW): no free switch_in/frequency_in/analog_0_5 on MaxxECU MaxxECU STREET - OEM-C 7: Clutch switch (M/T): no free switch_in/frequency_in/analog_0_5 on MaxxECU MaxxECU STREET - OEM-C 9: Service check connector (SCS): no free switch_in/frequency_in/analog_0_5 on MaxxECU MaxxECU STREET - OEM-D 8: Ignition timing adjuster (IGADJ): no free switch_in/frequency_in/analog_0_5 on MaxxECU MaxxECU STREET - 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
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 | Bosch relay catalogue (mini ISO relays) | https://www.bosch-ibusiness.com/media/downloads/kataloge/relay/2025_10_bosch_relay_catalogue.pdf | archive | 2026-10-05 | 20344cff1ef3 |
| 4 | community_copy | Honda S2000 Service Manual 2000–2008, Fuel and Emissions Systems | https://www.s2000.wiki/view/images/7/7f/Service_Manual_2000-2008.pdf | archive | 2026-10-05 | a470cfc928e9 |
| 4 | vendor_doc | MaxxECU GEN1 pinout (MINI / STREET / SPORT / V1 / RACE / PRO) | http://www.maxxecu.com/webhelp/wirings-maxxecu_pinout.html | archive | 2026-10-05 | 2e37b6814690 |
| 4 | vendor_doc | Omron G8V-RH-1C7T-R-DC12 high-current micro 280 automotive relay datasheet | https://www.alldatasheet.com/datasheet-pdf/pdf/333797/OMRON/G8V-RH-1C7T-R-DC12.html | — | 2026-10-05 | 764a0505a941 |
| 3 | vendor_doc | dodo-upgrades: Honda OBD1 V6 ECU pinout | https://dodo-upgrades.nl/index.php/obd1-v6-pinouts/ | archive | 2026-10-05 | f9539af28904 |