Honda NSX NA1 1991-2005 (C30A) → MaxxECU MaxxECU RACE REV9+ (auto)
Honda NSX NA1 1991-2005 (C30A) — MaxxECU — MaxxECU RACE
⚠ NOT CHECKED. Don't build from this.
Drawn by Michael Gnankou · Rev 0 · draft · 2026-10-08
Before you start
| Status | draft · not yet verified: nobody has reported building and running this harness |
|---|---|
| Open errors | none |
| Size of the job | 63 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 | MAXXECURACE-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 | MAXXECURACE-C1-L4 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W8 | SP-GND-1 | MAXXECURACE-C2-G4 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W9 | OEM-A-26 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W10 | OEM-B-10 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W11 | OEM-B-12 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W12 | OEM-B-14 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W13 | OEM-B-16 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W14 | OEM-D-21 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W15 | OEM-D-22 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W16 | SP-0V-1 | MAXXECURACE-C1-H1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W17 | SP-0V-1 | MAXXECURACE-C1-H2 | 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 | MAXXECURACE-C1-G1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W22 | OEM-B-15 | MAXXECURACE-C1-H3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W23 | OEM-B-11 | MAXXECURACE-C1-H4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W24 | OEM-D-4 | MAXXECURACE-C2-E2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W25 | OEM-D-3 | MAXXECURACE-C2-E3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W26 | OEM-A-21 | MAXXECURACE-C1-A2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W27 | OEM-A-22 | MAXXECURACE-C1-A3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W28 | OEM-B-8 | MAXXECURACE-C1-B2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W29 | OEM-B-6 | MAXXECURACE-C1-B3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W30 | OEM-B-4 | MAXXECURACE-C1-C2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W31 | OEM-B-3 | MAXXECURACE-C1-C3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W32 | OEM-A-1 | MAXXECURACE-C1-K1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W33 | OEM-A-3 | MAXXECURACE-C1-K2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W34 | OEM-A-5 | MAXXECURACE-C1-M1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W35 | OEM-A-2 | MAXXECURACE-C1-M2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W36 | OEM-A-4 | MAXXECURACE-C1-M3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W37 | OEM-A-6 | MAXXECURACE-C1-L3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W38 | OEM-A-8 | MAXXECURACE-C1-B4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W39 | OEM-A-15 | MAXXECURACE-C1-C4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W40 | OEM-A-18 | MAXXECURACE-C1-D4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W41 | OEM-A-7 | MAXXECURACE-C1-E4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W42 | OEM-5-F5 | MAXXECURACE-C2-G1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W43 | OEM-5-F7 | MAXXECURACE-C2-G2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W44 | OEM-A-10 | MAXXECURACE-C1-D1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W45 | OEM-A-12 | MAXXECURACE-C1-A1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W46 | OEM-A-11 | MAXXECURACE-C1-B1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W47 | OEM-A-13 | MAXXECURACE-C1-C1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W48 | OEM-A-14 | MAXXECURACE-C1-A4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W49 | OEM-A-20 | MAXXECURACE-C1-L2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W50 | OEM-A-9 | MAXXECURACE-C1-L1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W51 | OEM-D-17 | MAXXECURACE-C1-J3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W52 | OEM-D-11 | MAXXECURACE-C1-G2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W53 | OEM-D-14 | MAXXECURACE-C1-J4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W54 | OEM-D-16 | MAXXECURACE-C2-G3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W55 | OEM-D-13 | MAXXECURACE-C1-J1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W56 | OEM-D-15 | MAXXECURACE-C1-J2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W57 | OEM-D-12 | MAXXECURACE-C2-E4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W58 | OEM-C-2 | MAXXECURACE-C1-K3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W59 | OEM-D-9 | MAXXECURACE-C1-K4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W60 | OEM-5-F2 | MAXXECURACE-C2-F3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W61 | OEM-5-F4 | MAXXECURACE-C2-F4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W62 | OEM-B-7 | MAXXECURACE-C2-F1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W63 | OEM-C-11 | MAXXECURACE-C2-F2 | 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 | MAXXECURACE-C1-M4 | MAXXECURACE-C1-H1 | open (OL) | +12 V supply must not touch sensor ground | |
| 2 | MAXXECURACE-C1-H1 | MAXXECURACE-C1-G1 | open (OL) | sensor ground must not touch 5 V sensor reference | |
| 3 | MAXXECURACE-C1-L4 | MAXXECURACE-C1-G1 | open (OL) | power ground must not touch 5 V sensor reference | |
| 4 | MAXXECURACE-C1-L4 | MAXXECURACE-C1-M4 | open (OL) | power ground must not touch +12 V supply | |
| 5 | MAXXECURACE-C1-M4 | MAXXECURACE-C1-G1 | open (OL) | +12 V supply must not touch 5 V sensor reference |
Revisions
| Rev | Label | By | Date |
|---|---|---|---|
| No revisions yet. | |||
Schematic
Connectors
MAXXECURACE-C1
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| A1 | GPO 5 | — | W45 | — | 0.5 | OEM-A-12 | — | — | — |
| A2 | IGN 1 | — | W26 | — | 0.5 | OEM-A-21 | — | — | — |
| A3 | IGN 2 | — | W27 | — | 0.5 | OEM-A-22 | — | — | — |
| A4 | GPO 8/TACHO | — | W48 | — | 0.5 | OEM-A-14 | — | — | — |
| B1 | GPO 6 | — | W46 | — | 0.5 | OEM-A-11 | — | — | — |
| B2 | IGN 3 | — | W28 | — | 0.5 | OEM-B-8 | — | — | — |
| B3 | IGN 4 | — | W29 | — | 0.5 | OEM-B-6 | — | — | — |
| B4 | GPO 1 | — | W38 | — | 0.5 | OEM-A-8 | — | — | — |
| C1 | GPO 7 | — | W47 | — | 0.5 | OEM-A-13 | — | — | — |
| C2 | IGN 5 | — | W30 | — | 0.5 | OEM-B-4 | — | — | — |
| C3 | IGN 6 | — | W31 | — | 0.5 | OEM-B-3 | — | — | — |
| C4 | GPO 2 | — | W39 | — | 0.5 | OEM-A-15 | — | — | — |
| D1 | WBO2 Heater- | — | W44 | — | 0.5 | OEM-A-10 | — | — | — |
| D2 | IGN 7 | — | — | — | — | — | — | — | — |
| D3 | IGN 8 | — | — | — | — | — | — | — | — |
| D4 | GPO 3 | — | W40 | — | 0.5 | OEM-A-18 | — | — | — |
| E1 | CAN H | — | — | — | — | — | — | — | — |
| E2 | CAN L | — | — | — | — | — | — | — | — |
| E3 | GND Shield | — | — | — | — | — | — | — | — |
| E4 | GPO 4 | — | W41 | — | 0.5 | OEM-A-7 | — | — | — |
| F1 | CLT | — | — | — | — | — | — | — | — |
| F2 | IAT | — | — | — | — | — | — | — | — |
| F3 | WBO2 VREF | — | — | — | — | — | — | — | — |
| F4 | WBO2 VS | — | — | — | — | — | — | — | — |
| G1 | +5V sensor supply | — | W21 | — | 0.5 | SP-5V1-1 | — | — | — |
| G2 | TPS/AIN | — | W52 | — | 0.5 | OEM-D-11 | — | — | — |
| G3 | WBO2 IP | — | — | — | — | — | — | — | — |
| G4 | WBO2 RCAL | — | — | — | — | — | — | — | — |
| H1 | Sensor GND | — | W16 | — | 0.5 | SP-0V-1 | — | — | — |
| H2 | Trigger GND | — | W17 | — | 0.5 | SP-0V-1 | — | — | — |
| H3 | TRIGGER | — | W22 | — | 0.5 | OEM-B-15 | — | — | — |
| H4 | HOME | — | W23 | — | 0.5 | OEM-B-11 | — | — | — |
| J1 | AIN 1 (temperature) | — | W55 | — | 0.5 | OEM-D-13 | — | — | — |
| J2 | AIN 2 (temperature) | — | W56 | — | 0.5 | OEM-D-15 | — | — | — |
| J3 | AIN 3 (0-5V) | — | W51 | — | 0.5 | OEM-D-17 | — | — | — |
| J4 | AIN 4 (0-5V) | — | W53 | — | 0.5 | OEM-D-14 | — | — | — |
| K1 | INJ 1 | — | W32 | — | 0.5 | OEM-A-1 | — | — | — |
| K2 | INJ 2 | — | W33 | — | 0.5 | OEM-A-3 | — | — | — |
| K3 | DIN/VR 1 | — | W58 | — | 0.5 | OEM-C-2 | — | — | — |
| K4 | DIN/VR 2 | — | W59 | — | 0.5 | OEM-D-9 | — | — | — |
| L1 | INJ 8 | — | W50 | — | 0.5 | OEM-A-9 | — | — | — |
| L2 | INJ 7 | — | W49 | — | 0.5 | OEM-A-20 | — | — | — |
| L3 | INJ 6 | — | W37 | — | 0.5 | OEM-A-6 | — | — | — |
| L4 | Engine GND | — | W7 | — | 0.85 | SP-GND-1 | — | — | — |
| M1 | INJ 3 | — | W34 | — | 0.5 | OEM-A-5 | — | — | — |
| M2 | INJ 4 | — | W35 | — | 0.5 | OEM-A-2 | — | — | — |
| M3 | INJ 5 | — | W36 | — | 0.5 | OEM-A-4 | — | — | — |
| M4 | +12V ECU power supply | — | W3 | — | 0.85 | SP-14V-1 | — | — | — |
MAXXECURACE-C2
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| A1 | EGT 5+ | — | — | — | — | — | — | — | — |
| A2 | EGT 6+ | — | — | — | — | — | — | — | — |
| A3 | EGT 7+ | — | — | — | — | — | — | — | — |
| A4 | EGT 8+ | — | — | — | — | — | — | — | — |
| B1 | EGT 5- | — | — | — | — | — | — | — | — |
| B2 | EGT 6- | — | — | — | — | — | — | — | — |
| B3 | EGT 7- | — | — | — | — | — | — | — | — |
| B4 | EGT 8- | — | — | — | — | — | — | — | — |
| C1 | EGT 1+ | — | — | — | — | — | — | — | — |
| C2 | EGT 2+ | — | — | — | — | — | — | — | — |
| C3 | EGT 3+ | — | — | — | — | — | — | — | — |
| C4 | EGT 4+ | — | — | — | — | — | — | — | — |
| D1 | EGT 1- | — | — | — | — | — | — | — | — |
| D2 | EGT 2- | — | — | — | — | — | — | — | — |
| D3 | EGT 3- | — | — | — | — | — | — | — | — |
| D4 | EGT 4- | — | — | — | — | — | — | — | — |
| E1 | KNOCK GND | — | — | — | — | — | — | — | — |
| E2 | Knock 1 | — | W24 | — | 0.5 | OEM-D-4 | — | — | — |
| E3 | Knock 2 | — | W25 | — | 0.5 | OEM-D-3 | — | — | — |
| E4 | AIN 6 (0-5V) | — | W57 | — | 0.5 | OEM-D-12 | — | — | — |
| F1 | AIN 7 (0-5V) | — | W62 | — | 0.5 | OEM-B-7 | — | — | — |
| F2 | AIN 8 (0-5V) | — | W63 | — | 0.5 | OEM-C-11 | — | — | — |
| F3 | DIN/VR 4 | — | W60 | — | 0.5 | OEM-5-F2 | — | — | — |
| F4 | DIN/VR 5 | — | W61 | — | 0.5 | OEM-5-F4 | — | — | — |
| G1 | GPO 15 (+12V) | — | W42 | — | 0.5 | OEM-5-F5 | — | — | — |
| G2 | GPO 16 (+12V) | — | W43 | — | 0.5 | OEM-5-F7 | — | — | — |
| G3 | AIN 5 (0-5V) | — | W54 | — | 0.5 | OEM-D-16 | — | — | — |
| G4 | ENGINE GROUND | — | W8 | — | 0.85 | SP-GND-1 | — | — | — |
| H1 | MOTOR 2+ | — | — | — | — | — | — | — | — |
| H2 | MOTOR 1- | — | — | — | — | — | — | — | — |
| H3 | MOTOR 2- | — | — | — | — | — | — | — | — |
| H4 | MOTOR 1+ | — | — | — | — | — | — | — | — |
OEM-5
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| F2 | Front VTEC pressure switch | — | W60 | — | 0.5 | MAXXECURACE-C2-F3 | — | — | — |
| F4 | Rear VTEC pressure switch | — | W61 | — | 0.5 | MAXXECURACE-C2-F4 | — | — | — |
| F5 | Front VTEC solenoid valve | — | W42 | — | 0.5 | MAXXECURACE-C2-G1 | — | — | — |
| F7 | Rear VTEC solenoid valve | — | W43 | — | 0.5 | MAXXECURACE-C2-G2 | — | — | — |
OEM-A
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Injector 1 | — | W32 | — | 0.5 | MAXXECURACE-C1-K1 | — | — | — |
| 10 | Front O2 sensor heater (HTCNTF) | — | W44 | — | 0.5 | MAXXECURACE-C1-D1 | — | — | — |
| 11 | EGR control solenoid | — | W46 | — | 0.5 | MAXXECURACE-C1-B1 | — | — | — |
| 12 | Rear O2 sensor heater (HTCNTR) | — | W45 | — | 0.5 | MAXXECURACE-C1-A1 | — | — | — |
| 13 | Check engine light (WARN) | — | W47 | — | 0.5 | MAXXECURACE-C1-C1 | — | — | — |
| 14 | Chamber volume control solenoid (BPS) | — | W48 | — | 0.5 | MAXXECURACE-C1-A4 | — | — | — |
| 15 | A/C clutch relay (ACC) | — | W39 | — | 0.5 | MAXXECURACE-C1-C4 | — | — | — |
| 18 | Radiator fan control (FANCNTR) | — | W40 | — | 0.5 | MAXXECURACE-C1-D4 | — | — | — |
| 2 | Injector 4 | — | W35 | — | 0.5 | MAXXECURACE-C1-M2 | — | — | — |
| 20 | EVAP purge cut-off solenoid (PGS) | — | W49 | — | 0.5 | MAXXECURACE-C1-L2 | — | — | — |
| 21 | Ignition coil 1 | — | W26 | — | 0.5 | MAXXECURACE-C1-A2 | — | — | — |
| 22 | Ignition coil 2 | — | W27 | — | 0.5 | MAXXECURACE-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) | — | W9 | — | 0.5 | SP-0V-1 | — | — | — |
| 3 | Injector 2 | — | W33 | — | 0.5 | MAXXECURACE-C1-K2 | — | — | — |
| 4 | Injector 5 | — | W36 | — | 0.5 | MAXXECURACE-C1-M3 | — | — | — |
| 5 | Injector 3 | — | W34 | — | 0.5 | MAXXECURACE-C1-M1 | — | — | — |
| 6 | Injector 6 | — | W37 | — | 0.5 | MAXXECURACE-C1-L3 | — | — | — |
| 7 | Main relay | — | W41 | — | 0.5 | MAXXECURACE-C1-E4 | — | — | — |
| 8 | Fuel pump relay 2 (FLR2) | — | W38 | — | 0.5 | MAXXECURACE-C1-B4 | — | — | — |
| 9 | Idle air control valve (IACV) | — | W50 | — | 0.5 | MAXXECURACE-C1-L1 | — | — | — |
OEM-B
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 10 | CYL 2M — CYP sensor 2 return | — | W10 | — | 0.5 | SP-0V-1 | — | — | — |
| 11 | CYL 1P — CYP sensor 1 signal | — | W23 | — | 0.5 | MAXXECURACE-C1-H4 | — | — | — |
| 12 | CYL 1M — CYP sensor 1 return | — | W11 | — | 0.5 | SP-0V-1 | — | — | — |
| 13 | CRNK 2P — TDC sensor signal | — | — | — | — | — | — | — | — |
| 14 | CRNK 2M — TDC sensor return | — | W12 | — | 0.5 | SP-0V-1 | — | — | — |
| 15 | CRNK 1P — crank sensor signal | — | W22 | — | 0.5 | MAXXECURACE-C1-H3 | — | — | — |
| 16 | CRNK 1M — crank sensor return | — | W13 | — | 0.5 | SP-0V-1 | — | — | — |
| 2 | Chassis ground (LG2) | — | W6 | — | 0.85 | SP-GND-1 | — | — | — |
| 3 | Ignition coil 6 | — | W31 | — | 0.5 | MAXXECURACE-C1-C3 | — | — | — |
| 4 | Ignition coil 5 | — | W30 | — | 0.5 | MAXXECURACE-C1-C2 | — | — | — |
| 6 | Ignition coil 4 | — | W29 | — | 0.5 | MAXXECURACE-C1-B3 | — | — | — |
| 7 | Neutral switch (M/T) / gear position (A/T) | — | W62 | — | 0.5 | MAXXECURACE-C2-F1 | — | — | — |
| 8 | Ignition coil 3 | — | W28 | — | 0.5 | MAXXECURACE-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) | — | W63 | — | 0.5 | MAXXECURACE-C2-F2 | — | — | — |
| 12 | Traction control | — | — | — | — | — | — | — | — |
| 2 | Vehicle speed sensor (VSS) | — | W58 | — | 0.5 | MAXXECURACE-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) | — | W52 | — | 0.5 | MAXXECURACE-C1-G2 | — | — | — |
| 12 | EGR lift sensor (EGRL) | — | W57 | — | 0.5 | MAXXECURACE-C2-E4 | — | — | — |
| 13 | Engine coolant temperature (ECT) | — | W55 | — | 0.5 | MAXXECURACE-C1-J1 | — | — | — |
| 14 | Primary O2 sensor | — | W53 | — | 0.5 | MAXXECURACE-C1-J4 | — | — | — |
| 15 | Intake air temperature (IAT) | — | W56 | — | 0.5 | MAXXECURACE-C1-J2 | — | — | — |
| 16 | Secondary O2 sensor | — | W54 | — | 0.5 | MAXXECURACE-C2-G3 | — | — | — |
| 17 | MAP sensor | — | W51 | — | 0.5 | MAXXECURACE-C1-J3 | — | — | — |
| 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) | — | W14 | — | 0.5 | SP-0V-1 | — | — | — |
| 22 | Sensor ground (SG) | — | W15 | — | 0.5 | SP-0V-1 | — | — | — |
| 3 | Knock sensor — rear | — | W25 | — | 0.5 | MAXXECURACE-C2-E3 | — | — | — |
| 4 | Knock sensor — front | — | W24 | — | 0.5 | MAXXECURACE-C2-E2 | — | — | — |
| 5 | Traction control | — | — | — | — | — | — | — | — |
| 6 | Fuel pump voltage monitor (VFP) | — | — | — | — | — | — | — | — |
| 8 | Ignition timing adjuster (IGADJ) | — | — | — | — | — | — | — | — |
| 9 | Alternator FR signal | — | W59 | — | 0.5 | MAXXECURACE-C1-K4 | — | — | — |
SP-0V
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W9 | — | 0.5 | OEM-A-26 | — | — | — |
| 1 | — | — | W10 | — | 0.5 | OEM-B-10 | — | — | — |
| 1 | — | — | W11 | — | 0.5 | OEM-B-12 | — | — | — |
| 1 | — | — | W12 | — | 0.5 | OEM-B-14 | — | — | — |
| 1 | — | — | W13 | — | 0.5 | OEM-B-16 | — | — | — |
| 1 | — | — | W14 | — | 0.5 | OEM-D-21 | — | — | — |
| 1 | — | — | W15 | — | 0.5 | OEM-D-22 | — | — | — |
| 1 | — | — | W16 | — | 0.5 | MAXXECURACE-C1-H1 | — | — | — |
| 1 | — | — | W17 | — | 0.5 | MAXXECURACE-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 | MAXXECURACE-C1-M4 | — | — | — |
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 | MAXXECURACE-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 | MAXXECURACE-C1-L4 | — | — | — |
| 1 | — | — | W8 | — | 0.85 | MAXXECURACE-C2-G4 | — | — | — |
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 | MAXXECURACE-C2-F3 | DIN/VR 4 | digital_in | single_source | |
| OEM-5-F4 | Rear VTEC pressure switch | digital_in | MAXXECURACE-C2-F4 | DIN/VR 5 | digital_in | single_source | |
| OEM-5-F5 | Front VTEC solenoid valve | high_side_out | MAXXECURACE-C2-G1 | GPO 15 (+12V) | high_side_out | single_source | |
| OEM-5-F7 | Rear VTEC solenoid valve | high_side_out | MAXXECURACE-C2-G2 | GPO 16 (+12V) | high_side_out | single_source | |
| OEM-A-1 | Injector 1 | injector_out | MAXXECURACE-C1-K1 | INJ 1 | injector_out | single_source | |
| OEM-A-10 | Front O2 sensor heater (HTCNTF) | low_side_out | MAXXECURACE-C1-D1 | WBO2 Heater- | low_side_out | single_source | |
| OEM-A-11 | EGR control solenoid | low_side_out | MAXXECURACE-C1-B1 | GPO 6 | low_side_out | single_source | |
| OEM-A-12 | Rear O2 sensor heater (HTCNTR) | low_side_out | MAXXECURACE-C1-A1 | GPO 5 | low_side_out | single_source | |
| OEM-A-13 | Check engine light (WARN) | low_side_out | MAXXECURACE-C1-C1 | GPO 7 | low_side_out | single_source | |
| OEM-A-14 | Chamber volume control solenoid (BPS) | low_side_out | MAXXECURACE-C1-A4 | GPO 8/TACHO | low_side_out | single_source | |
| OEM-A-15 | A/C clutch relay (ACC) | low_side_out | MAXXECURACE-C1-C4 | GPO 2 | low_side_out | single_source | |
| OEM-A-18 | Radiator fan control (FANCNTR) | low_side_out | MAXXECURACE-C1-D4 | GPO 3 | low_side_out | single_source | |
| OEM-A-2 | Injector 4 | injector_out | MAXXECURACE-C1-M2 | INJ 4 | injector_out | single_source | |
| OEM-A-20 | EVAP purge cut-off solenoid (PGS) | low_side_out | MAXXECURACE-C1-L2 | INJ 7 | injector_out | single_source | |
| OEM-A-21 | Ignition coil 1 | ignition_out | MAXXECURACE-C1-A2 | IGN 1 | ignition_out | single_source | |
| OEM-A-22 | Ignition coil 2 | ignition_out | MAXXECURACE-C1-A3 | IGN 2 | ignition_out | single_source | |
| OEM-A-23 | Power ground (PG1) | ground | MAXXECURACE-C1-L4 + MAXXECURACE-C2-G4 | Engine GND + ENGINE GROUND | ground | single_source | |
| OEM-A-24 | Power ground (PG2) | ground | MAXXECURACE-C1-L4 + MAXXECURACE-C2-G4 | Engine GND + ENGINE GROUND | ground | single_source | |
| OEM-A-25 | ECU power (IGP1) | power_in | MAXXECURACE-C1-M4 | +12V ECU power supply | power_in | single_source | |
| OEM-A-26 | Sensor ground (LG1) | sensor_ground | MAXXECURACE-C1-H1 + MAXXECURACE-C1-H2 | Sensor GND + Trigger GND | sensor_ground | single_source | |
| OEM-A-3 | Injector 2 | injector_out | MAXXECURACE-C1-K2 | INJ 2 | injector_out | single_source | |
| OEM-A-4 | Injector 5 | injector_out | MAXXECURACE-C1-M3 | INJ 5 | injector_out | corroborated | |
| OEM-A-5 | Injector 3 | injector_out | MAXXECURACE-C1-M1 | INJ 3 | injector_out | single_source | |
| OEM-A-6 | Injector 6 | injector_out | MAXXECURACE-C1-L3 | INJ 6 | injector_out | single_source | |
| OEM-A-7 | Main relay | low_side_out | MAXXECURACE-C1-E4 | GPO 4 | low_side_out | single_source | |
| OEM-A-8 | Fuel pump relay 2 (FLR2) | low_side_out | MAXXECURACE-C1-B4 | GPO 1 | low_side_out | single_source | |
| OEM-A-9 | Idle air control valve (IACV) | low_side_out | MAXXECURACE-C1-L1 | INJ 8 | injector_out | single_source | |
| OEM-B-10 | CYL 2M — CYP sensor 2 return | sensor_ground | MAXXECURACE-C1-H1 + MAXXECURACE-C1-H2 | Sensor GND + Trigger GND | sensor_ground | single_source | |
| OEM-B-11 | CYL 1P — CYP sensor 1 signal | trigger_in | MAXXECURACE-C1-H4 | HOME | trigger_in | single_source | |
| OEM-B-12 | CYL 1M — CYP sensor 1 return | sensor_ground | MAXXECURACE-C1-H1 + MAXXECURACE-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 | MAXXECURACE-C1-H1 + MAXXECURACE-C1-H2 | Sensor GND + Trigger GND | sensor_ground | single_source | |
| OEM-B-15 | CRNK 1P — crank sensor signal | trigger_in | MAXXECURACE-C1-H3 | TRIGGER | trigger_in | single_source | |
| OEM-B-16 | CRNK 1M — crank sensor return | sensor_ground | MAXXECURACE-C1-H1 + MAXXECURACE-C1-H2 | Sensor GND + Trigger GND | sensor_ground | single_source | |
| OEM-B-2 | Chassis ground (LG2) | ground | MAXXECURACE-C1-L4 + MAXXECURACE-C2-G4 | Engine GND + ENGINE GROUND | ground | single_source | |
| OEM-B-3 | Ignition coil 6 | ignition_out | MAXXECURACE-C1-C3 | IGN 6 | ignition_out | single_source | |
| OEM-B-4 | Ignition coil 5 | ignition_out | MAXXECURACE-C1-C2 | IGN 5 | ignition_out | single_source | |
| OEM-B-6 | Ignition coil 4 | ignition_out | MAXXECURACE-C1-B3 | IGN 4 | ignition_out | single_source | |
| OEM-B-7 | Neutral switch (M/T) / gear position (A/T) | digital_in | MAXXECURACE-C2-F1 | AIN 7 (0-5V) | analog_in | single_source | |
| OEM-B-8 | Ignition coil 3 | ignition_out | MAXXECURACE-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 | MAXXECURACE-C1-M4 | +12V ECU power supply | power_in | single_source | |
| OEM-C-10 | Traction control | — | — | — | — | single_source | |
| OEM-C-11 | Starter switch (STS) | digital_in | MAXXECURACE-C2-F2 | AIN 8 (0-5V) | analog_in | single_source | |
| OEM-C-12 | Traction control | — | — | — | — | single_source | |
| OEM-C-2 | Vehicle speed sensor (VSS) | digital_in | MAXXECURACE-C1-K3 | DIN/VR 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 | MAXXECURACE-C1-G2 | TPS/AIN | analog_in | single_source | |
| OEM-D-12 | EGR lift sensor (EGRL) | analog_in | MAXXECURACE-C2-E4 | AIN 6 (0-5V) | analog_in | single_source | |
| OEM-D-13 | Engine coolant temperature (ECT) | temp_in | MAXXECURACE-C1-J1 | AIN 1 (temperature) | temp_in | single_source | |
| OEM-D-14 | Primary O2 sensor | lambda_nb_in | MAXXECURACE-C1-J4 | AIN 4 (0-5V) | analog_in | single_source | |
| OEM-D-15 | Intake air temperature (IAT) | temp_in | MAXXECURACE-C1-J2 | AIN 2 (temperature) | temp_in | single_source | |
| OEM-D-16 | Secondary O2 sensor | lambda_nb_in | MAXXECURACE-C2-G3 | AIN 5 (0-5V) | analog_in | single_source | |
| OEM-D-17 | MAP sensor | analog_in | MAXXECURACE-C1-J3 | AIN 3 (0-5V) | analog_in | single_source | |
| OEM-D-18 | +5V sensor supply (VCC) | vref | MAXXECURACE-C1-G1 | +5V sensor supply | vref | single_source | |
| OEM-D-19 | +5V sensor supply (VCC) | vref | MAXXECURACE-C1-G1 | +5V sensor supply | vref | single_source | |
| OEM-D-20 | +5V sensor supply (VCC) | vref | MAXXECURACE-C1-G1 | +5V sensor supply | vref | single_source | |
| OEM-D-21 | Sensor ground (SG) | sensor_ground | MAXXECURACE-C1-H1 + MAXXECURACE-C1-H2 | Sensor GND + Trigger GND | sensor_ground | single_source | |
| OEM-D-22 | Sensor ground (SG) | sensor_ground | MAXXECURACE-C1-H1 + MAXXECURACE-C1-H2 | Sensor GND + Trigger GND | sensor_ground | single_source | |
| OEM-D-3 | Knock sensor — rear | knock_in | MAXXECURACE-C2-E3 | Knock 2 | knock_in | single_source | |
| OEM-D-4 | Knock sensor — front | knock_in | MAXXECURACE-C2-E2 | 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 | MAXXECURACE-C1-K4 | DIN/VR 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 | MAXXECURACE-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 | MAXXECURACE-C1-L4 | 0.85 | no route | Engine GND | — | |
| W8 | SP-GND-1 | MAXXECURACE-C2-G4 | 0.85 | no route | ENGINE GROUND | — | |
| W9 | OEM-A-26 | SP-0V-1 | 0.5 | no route | Sensor ground (LG1) | — | |
| W10 | OEM-B-10 | SP-0V-1 | 0.5 | no route | CYL 2M — CYP sensor 2 return | — | |
| W11 | OEM-B-12 | SP-0V-1 | 0.5 | no route | CYL 1M — CYP sensor 1 return | — | |
| W12 | OEM-B-14 | SP-0V-1 | 0.5 | no route | CRNK 2M — TDC sensor return | — | |
| W13 | OEM-B-16 | SP-0V-1 | 0.5 | no route | CRNK 1M — crank sensor return | — | |
| W14 | OEM-D-21 | SP-0V-1 | 0.5 | no route | Sensor ground (SG) | — | |
| W15 | OEM-D-22 | SP-0V-1 | 0.5 | no route | Sensor ground (SG) | — | |
| W16 | SP-0V-1 | MAXXECURACE-C1-H1 | 0.5 | no route | Sensor GND | — | |
| W17 | SP-0V-1 | MAXXECURACE-C1-H2 | 0.5 | no route | Trigger GND | — | |
| 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 | MAXXECURACE-C1-G1 | 0.5 | no route | +5V sensor supply | — | |
| W22 | OEM-B-15 | MAXXECURACE-C1-H3 | 0.5 | no route | CRNK 1P — crank sensor signal | — | |
| W23 | OEM-B-11 | MAXXECURACE-C1-H4 | 0.5 | no route | CYL 1P — CYP sensor 1 signal | — | |
| W24 | OEM-D-4 | MAXXECURACE-C2-E2 | 0.5 | no route | Knock sensor — front | — | |
| W25 | OEM-D-3 | MAXXECURACE-C2-E3 | 0.5 | no route | Knock sensor — rear | — | |
| W26 | OEM-A-21 | MAXXECURACE-C1-A2 | 0.5 | no route | Ignition coil 1 | — | |
| W27 | OEM-A-22 | MAXXECURACE-C1-A3 | 0.5 | no route | Ignition coil 2 | — | |
| W28 | OEM-B-8 | MAXXECURACE-C1-B2 | 0.5 | no route | Ignition coil 3 | — | |
| W29 | OEM-B-6 | MAXXECURACE-C1-B3 | 0.5 | no route | Ignition coil 4 | — | |
| W30 | OEM-B-4 | MAXXECURACE-C1-C2 | 0.5 | no route | Ignition coil 5 | — | |
| W31 | OEM-B-3 | MAXXECURACE-C1-C3 | 0.5 | no route | Ignition coil 6 | — | |
| W32 | OEM-A-1 | MAXXECURACE-C1-K1 | 0.5 | no route | Injector 1 | — | |
| W33 | OEM-A-3 | MAXXECURACE-C1-K2 | 0.5 | no route | Injector 2 | — | |
| W34 | OEM-A-5 | MAXXECURACE-C1-M1 | 0.5 | no route | Injector 3 | — | |
| W35 | OEM-A-2 | MAXXECURACE-C1-M2 | 0.5 | no route | Injector 4 | — | |
| W36 | OEM-A-4 | MAXXECURACE-C1-M3 | 0.5 | no route | Injector 5 | — | |
| W37 | OEM-A-6 | MAXXECURACE-C1-L3 | 0.5 | no route | Injector 6 | — | |
| W38 | OEM-A-8 | MAXXECURACE-C1-B4 | 0.5 | no route | Fuel pump relay 2 (FLR2) | — | |
| W39 | OEM-A-15 | MAXXECURACE-C1-C4 | 0.5 | no route | A/C clutch relay (ACC) | — | |
| W40 | OEM-A-18 | MAXXECURACE-C1-D4 | 0.5 | no route | Radiator fan control (FANCNTR) | — | |
| W41 | OEM-A-7 | MAXXECURACE-C1-E4 | 0.5 | no route | Main relay | — | |
| W42 | OEM-5-F5 | MAXXECURACE-C2-G1 | 0.5 | no route | Front VTEC solenoid valve | — | |
| W43 | OEM-5-F7 | MAXXECURACE-C2-G2 | 0.5 | no route | Rear VTEC solenoid valve | — | |
| W44 | OEM-A-10 | MAXXECURACE-C1-D1 | 0.5 | no route | Front O2 sensor heater (HTCNTF) | — | |
| W45 | OEM-A-12 | MAXXECURACE-C1-A1 | 0.5 | no route | Rear O2 sensor heater (HTCNTR) | — | |
| W46 | OEM-A-11 | MAXXECURACE-C1-B1 | 0.5 | no route | EGR control solenoid | — | |
| W47 | OEM-A-13 | MAXXECURACE-C1-C1 | 0.5 | no route | Check engine light (WARN) | — | |
| W48 | OEM-A-14 | MAXXECURACE-C1-A4 | 0.5 | no route | Chamber volume control solenoid (BPS) | — | |
| W49 | OEM-A-20 | MAXXECURACE-C1-L2 | 0.5 | no route | EVAP purge cut-off solenoid (PGS) | — | |
| W50 | OEM-A-9 | MAXXECURACE-C1-L1 | 0.5 | no route | Idle air control valve (IACV) | — | |
| W51 | OEM-D-17 | MAXXECURACE-C1-J3 | 0.5 | no route | MAP sensor | — | |
| W52 | OEM-D-11 | MAXXECURACE-C1-G2 | 0.5 | no route | Throttle position sensor (TPS) | — | |
| W53 | OEM-D-14 | MAXXECURACE-C1-J4 | 0.5 | no route | Primary O2 sensor | — | |
| W54 | OEM-D-16 | MAXXECURACE-C2-G3 | 0.5 | no route | Secondary O2 sensor | — | |
| W55 | OEM-D-13 | MAXXECURACE-C1-J1 | 0.5 | no route | Engine coolant temperature (ECT) | — | |
| W56 | OEM-D-15 | MAXXECURACE-C1-J2 | 0.5 | no route | Intake air temperature (IAT) | — | |
| W57 | OEM-D-12 | MAXXECURACE-C2-E4 | 0.5 | no route | EGR lift sensor (EGRL) | — | |
| W58 | OEM-C-2 | MAXXECURACE-C1-K3 | 0.5 | no route | Vehicle speed sensor (VSS) | — | |
| W59 | OEM-D-9 | MAXXECURACE-C1-K4 | 0.5 | no route | Alternator FR signal | — | |
| W60 | OEM-5-F2 | MAXXECURACE-C2-F3 | 0.5 | no route | Front VTEC pressure switch | — | |
| W61 | OEM-5-F4 | MAXXECURACE-C2-F4 | 0.5 | no route | Rear VTEC pressure switch | — | |
| W62 | OEM-B-7 | MAXXECURACE-C2-F1 | 0.5 | no route | Neutral switch (M/T) / gear position (A/T) | — | |
| W63 | OEM-C-11 | MAXXECURACE-C2-F2 | 0.5 | no route | Starter switch (STS) | — |
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 (5)
| Severity | Code | Subject | Message |
|---|---|---|---|
| warn | NET_FAMILY | OEM-B-7 ↔ MAXXECURACE-C2-F1 | OEM-B-7 "Neutral switch (M/T) / gear position (A/T)" [digital_in] is wired to MAXXECURACE-C2-F1 "AIN 7 (0-5V)" [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-11 ↔ MAXXECURACE-C2-F2 | OEM-C-11 "Starter switch (STS)" [digital_in] is wired to MAXXECURACE-C2-F2 "AIN 8 (0-5V)" [analog_in]. Analog and digital on one net. A switch on an analog input works with a pull-up and a threshold; an analog sensor on a digital input loses its value. |
| info | NET_FAMILY | OEM-A-20 ↔ MAXXECURACE-C1-L2 | OEM-A-20 "EVAP purge cut-off solenoid (PGS)" [low_side_out] is wired to MAXXECURACE-C1-L2 "INJ 7" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | NET_FAMILY | OEM-A-9 ↔ MAXXECURACE-C1-L1 | OEM-A-9 "Idle air control valve (IACV)" [low_side_out] is wired to MAXXECURACE-C1-L1 "INJ 8" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | UNMAPPED | OEM | 14 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-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-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)) 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): MaxxECU MaxxECU RACE 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 RACE - OEM-B 9: CYL 2P — CYP sensor 2 signal: no free cam_vr/cam_hall/frequency_in input on MaxxECU MaxxECU RACE - OEM-C 4: Tachometer output (NEP): no free tacho/frequency_out/low_side/ls_hs on MaxxECU MaxxECU RACE - OEM-C 3: A/C switch (ACS): no free switch_in/frequency_in/analog_0_5 on MaxxECU MaxxECU RACE - OEM-C 5: A/C pressure switch (PDSW): no free switch_in/frequency_in/analog_0_5 on MaxxECU MaxxECU RACE - OEM-C 7: Clutch switch (M/T): no free switch_in/frequency_in/analog_0_5 on MaxxECU MaxxECU RACE - OEM-C 9: Service check connector (SCS): no free switch_in/frequency_in/analog_0_5 on MaxxECU MaxxECU RACE - OEM-D 8: Ignition timing adjuster (IGADJ): no free switch_in/frequency_in/analog_0_5 on MaxxECU MaxxECU RACE - 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 | MaxxECU GEN1 pinout (MINI / STREET / SPORT / V1 / RACE / PRO) | http://www.maxxecu.com/webhelp/wirings-maxxecu_pinout.html | archive | 2026-10-05 | 2e37b6814690 |
| 3 | vendor_doc | dodo-upgrades: Honda OBD1 V6 ECU pinout | https://dodo-upgrades.nl/index.php/obd1-v6-pinouts/ | archive | 2026-10-05 | f9539af28904 |