Honda NSX NA1 1991-2005 (C30A) → Haltech Elite 2500 HT-151300 (auto)
Honda NSX NA1 1991-2005 (C30A) — Haltech — Elite 2500
Drawn by Michael Gnankou · Rev 0 · proposal · 2026-10-08
Before you start
| Status | proposal · not yet verified: nobody has reported building and running this harness |
|---|---|
| Open errors | none |
| Size of the job | 68 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 | ELITE2500-A-26 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W4 | SP-14V-1 | ELITE2500-B-11 | 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 | ELITE2500-A-10 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W9 | SP-GND-1 | ELITE2500-A-11 | 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 | ELITE2500-B-14 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W18 | SP-0V-1 | ELITE2500-B-15 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W19 | SP-0V-1 | ELITE2500-B-16 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W20 | OEM-D-18 | SP-5V1-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W21 | OEM-D-19 | SP-5V1-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W22 | OEM-D-20 | SP-5V1-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W23 | SP-5V1-1 | ELITE2500-A-9 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W24 | OEM-B-15 | ELITE2500-B-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W25 | SP-0V-1 | ELITE2500-B-5 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W26 | OEM-B-13 | ELITE2500-B-8 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W27 | OEM-B-11 | ELITE2500-B-2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W28 | SP-0V-1 | ELITE2500-B-6 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W29 | OEM-B-9 | ELITE2500-B-9 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W30 | OEM-D-4 | ELITE2500-B-21 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W31 | OEM-D-3 | ELITE2500-B-22 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W32 | OEM-A-21 | ELITE2500-A-3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W33 | OEM-A-22 | ELITE2500-A-4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W34 | OEM-B-8 | ELITE2500-A-5 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W35 | OEM-B-6 | ELITE2500-A-6 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W36 | OEM-B-4 | ELITE2500-A-7 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W37 | OEM-B-3 | ELITE2500-A-8 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W38 | OEM-A-1 | ELITE2500-A-19 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W39 | OEM-A-3 | ELITE2500-A-20 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W40 | OEM-A-5 | ELITE2500-A-21 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W41 | OEM-A-2 | ELITE2500-A-22 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W42 | OEM-A-4 | ELITE2500-A-27 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W43 | OEM-A-6 | ELITE2500-A-28 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W44 | OEM-A-8 | ELITE2500-A-25 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W45 | OEM-A-15 | ELITE2500-A-18 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W46 | OEM-A-18 | ELITE2500-A-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W47 | OEM-A-7 | ELITE2500-A-23 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W48 | OEM-5-F5 | ELITE2500-A-31 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W49 | OEM-5-F7 | ELITE2500-A-32 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W50 | OEM-A-10 | ELITE2500-B-19 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W51 | OEM-A-12 | ELITE2500-A-24 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W52 | OEM-A-11 | ELITE2500-A-33 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W53 | OEM-A-13 | ELITE2500-A-34 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W54 | OEM-A-14 | ELITE2500-A-29 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W55 | OEM-A-20 | ELITE2500-A-30 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W56 | OEM-A-9 | ELITE2500-B-25 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W57 | OEM-D-17 | ELITE2500-B-13 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W58 | OEM-D-11 | ELITE2500-A-16 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W59 | OEM-D-14 | ELITE2500-A-17 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W60 | OEM-D-16 | ELITE2500-A-2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W61 | OEM-D-13 | ELITE2500-B-4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W62 | OEM-D-15 | ELITE2500-B-20 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W63 | OEM-D-12 | ELITE2500-B-12 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W64 | OEM-C-2 | ELITE2500-B-10 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W65 | OEM-D-9 | ELITE2500-B-7 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W66 | OEM-5-F2 | ELITE2500-B-3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W67 | OEM-5-F4 | ELITE2500-A-15 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W68 | OEM-B-7 | ELITE2500-A-14 | 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 | ELITE2500-A-26 | ELITE2500-B-14 | open (OL) | +12 V supply must not touch sensor ground | |
| 2 | ELITE2500-A-10 | ELITE2500-A-26 | open (OL) | power ground must not touch +12 V supply | |
| 3 | ELITE2500-A-10 | ELITE2500-A-9 | open (OL) | power ground must not touch 5 V sensor reference | |
| 4 | ELITE2500-A-26 | ELITE2500-A-9 | open (OL) | +12 V supply must not touch 5 V sensor reference | |
| 5 | ELITE2500-B-14 | ELITE2500-A-9 | open (OL) | sensor ground must not touch 5 V sensor reference |
Revisions
| Rev | Label | By | Date |
|---|---|---|---|
| No revisions yet. | |||
Schematic
Connectors
ELITE2500-A
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | DPO 2 | — | W46 | — | 0.5 | OEM-A-18 | — | — | — |
| 10 | Battery ground | — | W8 | — | 0.85 | SP-GND-1 | — | — | — |
| 11 | Battery ground | — | W9 | — | 0.85 | SP-GND-1 | — | — | — |
| 12 | +8V DC | — | — | — | — | — | — | — | — |
| 13 | 12V ignition input | — | — | — | — | — | — | — | — |
| 14 | AVI 10 (TPS) | — | W68 | — | 0.5 | OEM-B-7 | — | — | — |
| 15 | AVI 9 (MAP) | — | W67 | — | 0.5 | OEM-5-F4 | — | — | — |
| 16 | AVI 2 | — | W58 | — | 0.5 | OEM-D-11 | — | — | — |
| 17 | AVI 3 | — | W59 | — | 0.5 | OEM-D-14 | — | — | — |
| 18 | DPO 1 | — | W45 | — | 0.5 | OEM-A-15 | — | — | — |
| 19 | INJ 1 | — | W38 | — | 0.5 | OEM-A-1 | — | — | — |
| 2 | AVI 4 | — | W60 | — | 0.5 | OEM-D-16 | — | — | — |
| 20 | INJ 2 | — | W39 | — | 0.5 | OEM-A-3 | — | — | — |
| 21 | INJ 3 | — | W40 | — | 0.5 | OEM-A-5 | — | — | — |
| 22 | INJ 4 | — | W41 | — | 0.5 | OEM-A-2 | — | — | — |
| 23 | DPO 3 | — | W47 | — | 0.5 | OEM-A-7 | — | — | — |
| 24 | DPO 5 (fuel pump trigger) | — | W51 | — | 0.5 | OEM-A-12 | — | — | — |
| 25 | DPO 6 (ECR OUT) | — | W44 | — | 0.5 | OEM-A-8 | — | — | — |
| 26 | ECU injector power input | — | W3 | — | 0.85 | SP-14V-1 | — | — | — |
| 27 | INJ 5 | — | W42 | — | 0.5 | OEM-A-4 | — | — | — |
| 28 | INJ 6 | — | W43 | — | 0.5 | OEM-A-6 | — | — | — |
| 29 | INJ 7 | — | W54 | — | 0.5 | OEM-A-14 | — | — | — |
| 3 | IGN 1 | — | W32 | — | 0.5 | OEM-A-21 | — | — | — |
| 30 | INJ 8 | — | W55 | — | 0.5 | OEM-A-20 | — | — | — |
| 31 | Stepper 1 P1 / DPO | — | W48 | — | 0.5 | OEM-5-F5 | — | — | — |
| 32 | Stepper 1 P2 / DPO | — | W49 | — | 0.5 | OEM-5-F7 | — | — | — |
| 33 | Stepper 1 P3 / DPO | — | W52 | — | 0.5 | OEM-A-11 | — | — | — |
| 34 | Stepper 1 P4 / DPO | — | W53 | — | 0.5 | OEM-A-13 | — | — | — |
| 4 | IGN 2 | — | W33 | — | 0.5 | OEM-A-22 | — | — | — |
| 5 | IGN 3 | — | W34 | — | 0.5 | OEM-B-8 | — | — | — |
| 6 | IGN 4 | — | W35 | — | 0.5 | OEM-B-6 | — | — | — |
| 7 | IGN 5 | — | W36 | — | 0.5 | OEM-B-4 | — | — | — |
| 8 | IGN 6 | — | W37 | — | 0.5 | OEM-B-3 | — | — | — |
| 9 | +5V DC | — | W23 | — | 0.5 | SP-5V1-1 | — | — | — |
ELITE2500-B
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Crank (Trigger) (+) | — | W24 | — | 0.5 | OEM-B-15 | — | — | — |
| 10 | SPI 3 | — | W64 | — | 0.5 | OEM-C-2 | — | — | — |
| 11 | +13.8V ECU supply | — | W4 | — | 0.85 | SP-14V-1 | — | — | — |
| 12 | AVI 6 (O2 Input 1) | — | W63 | — | 0.5 | OEM-D-12 | — | — | — |
| 13 | AVI 1 (O2 Input 2) | — | W57 | — | 0.5 | OEM-D-17 | — | — | — |
| 14 | Signal ground | — | W17 | — | 0.5 | SP-0V-1 | — | — | — |
| 15 | Signal ground | — | W18 | — | 0.5 | SP-0V-1 | — | — | — |
| 16 | Signal ground | — | W19 | — | 0.5 | SP-0V-1 | — | — | — |
| 17 | IGN 7 | — | — | — | — | — | — | — | — |
| 18 | IGN 8 | — | — | — | — | — | — | — | — |
| 19 | DPO 4 | — | W50 | — | 0.5 | OEM-A-10 | — | — | — |
| 2 | Cam (Home) (+) | — | W27 | — | 0.5 | OEM-B-11 | — | — | — |
| 20 | AVI 5 | — | W62 | — | 0.5 | OEM-D-15 | — | — | — |
| 21 | KNOCK 1 | — | W30 | — | 0.5 | OEM-D-4 | — | — | — |
| 22 | KNOCK 2 | — | W31 | — | 0.5 | OEM-D-3 | — | — | — |
| 23 | CAN H | — | — | — | — | — | — | — | — |
| 24 | CAN L | — | — | — | — | — | — | — | — |
| 25 | DBW 1 / DPO | — | W56 | — | 0.5 | OEM-A-9 | — | — | — |
| 26 | DBW 2 / DPO | — | — | — | — | — | — | — | — |
| 3 | AVI 7 (Air Temp) | — | W66 | — | 0.5 | OEM-5-F2 | — | — | — |
| 4 | AVI 8 (Coolant Temp) | — | W61 | — | 0.5 | OEM-D-13 | — | — | — |
| 5 | Crank (Trigger) (−) | — | W25 | — | 0.5 | SP-0V-1 | — | — | — |
| 6 | Cam (Home) (−) | — | W28 | — | 0.5 | SP-0V-1 | — | — | — |
| 7 | SPI 4 | — | W65 | — | 0.5 | OEM-D-9 | — | — | — |
| 8 | SPI 1 | — | W26 | — | 0.5 | OEM-B-13 | — | — | — |
| 9 | SPI 2 | — | W29 | — | 0.5 | OEM-B-9 | — | — | — |
OEM-5
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| F2 | Front VTEC pressure switch | — | W66 | — | 0.5 | ELITE2500-B-3 | — | — | — |
| F4 | Rear VTEC pressure switch | — | W67 | — | 0.5 | ELITE2500-A-15 | — | — | — |
| F5 | Front VTEC solenoid valve | — | W48 | — | 0.5 | ELITE2500-A-31 | — | — | — |
| F7 | Rear VTEC solenoid valve | — | W49 | — | 0.5 | ELITE2500-A-32 | — | — | — |
OEM-A
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Injector 1 | — | W38 | — | 0.5 | ELITE2500-A-19 | — | — | — |
| 10 | Front O2 sensor heater (HTCNTF) | — | W50 | — | 0.5 | ELITE2500-B-19 | — | — | — |
| 11 | EGR control solenoid | — | W52 | — | 0.5 | ELITE2500-A-33 | — | — | — |
| 12 | Rear O2 sensor heater (HTCNTR) | — | W51 | — | 0.5 | ELITE2500-A-24 | — | — | — |
| 13 | Check engine light (WARN) | — | W53 | — | 0.5 | ELITE2500-A-34 | — | — | — |
| 14 | Chamber volume control solenoid (BPS) | — | W54 | — | 0.5 | ELITE2500-A-29 | — | — | — |
| 15 | A/C clutch relay (ACC) | — | W45 | — | 0.5 | ELITE2500-A-18 | — | — | — |
| 18 | Radiator fan control (FANCNTR) | — | W46 | — | 0.5 | ELITE2500-A-1 | — | — | — |
| 2 | Injector 4 | — | W41 | — | 0.5 | ELITE2500-A-22 | — | — | — |
| 20 | EVAP purge cut-off solenoid (PGS) | — | W55 | — | 0.5 | ELITE2500-A-30 | — | — | — |
| 21 | Ignition coil 1 | — | W32 | — | 0.5 | ELITE2500-A-3 | — | — | — |
| 22 | Ignition coil 2 | — | W33 | — | 0.5 | ELITE2500-A-4 | — | — | — |
| 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 | — | W39 | — | 0.5 | ELITE2500-A-20 | — | — | — |
| 4 | Injector 5 | — | W42 | — | 0.5 | ELITE2500-A-27 | — | — | — |
| 5 | Injector 3 | — | W40 | — | 0.5 | ELITE2500-A-21 | — | — | — |
| 6 | Injector 6 | — | W43 | — | 0.5 | ELITE2500-A-28 | — | — | — |
| 7 | Main relay | — | W47 | — | 0.5 | ELITE2500-A-23 | — | — | — |
| 8 | Fuel pump relay 2 (FLR2) | — | W44 | — | 0.5 | ELITE2500-A-25 | — | — | — |
| 9 | Idle air control valve (IACV) | — | W56 | — | 0.5 | ELITE2500-B-25 | — | — | — |
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 | — | W27 | — | 0.5 | ELITE2500-B-2 | — | — | — |
| 12 | CYL 1M — CYP sensor 1 return | — | W12 | — | 0.5 | SP-0V-1 | — | — | — |
| 13 | CRNK 2P — TDC sensor signal | — | W26 | — | 0.5 | ELITE2500-B-8 | — | — | — |
| 14 | CRNK 2M — TDC sensor return | — | W13 | — | 0.5 | SP-0V-1 | — | — | — |
| 15 | CRNK 1P — crank sensor signal | — | W24 | — | 0.5 | ELITE2500-B-1 | — | — | — |
| 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 | — | W37 | — | 0.5 | ELITE2500-A-8 | — | — | — |
| 4 | Ignition coil 5 | — | W36 | — | 0.5 | ELITE2500-A-7 | — | — | — |
| 6 | Ignition coil 4 | — | W35 | — | 0.5 | ELITE2500-A-6 | — | — | — |
| 7 | Neutral switch (M/T) / gear position (A/T) | — | W68 | — | 0.5 | ELITE2500-A-14 | — | — | — |
| 8 | Ignition coil 3 | — | W34 | — | 0.5 | ELITE2500-A-5 | — | — | — |
| 9 | CYL 2P — CYP sensor 2 signal | — | W29 | — | 0.5 | ELITE2500-B-9 | — | — | — |
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) | — | W64 | — | 0.5 | ELITE2500-B-10 | — | — | — |
| 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) | — | W58 | — | 0.5 | ELITE2500-A-16 | — | — | — |
| 12 | EGR lift sensor (EGRL) | — | W63 | — | 0.5 | ELITE2500-B-12 | — | — | — |
| 13 | Engine coolant temperature (ECT) | — | W61 | — | 0.5 | ELITE2500-B-4 | — | — | — |
| 14 | Primary O2 sensor | — | W59 | — | 0.5 | ELITE2500-A-17 | — | — | — |
| 15 | Intake air temperature (IAT) | — | W62 | — | 0.5 | ELITE2500-B-20 | — | — | — |
| 16 | Secondary O2 sensor | — | W60 | — | 0.5 | ELITE2500-A-2 | — | — | — |
| 17 | MAP sensor | — | W57 | — | 0.5 | ELITE2500-B-13 | — | — | — |
| 18 | +5V sensor supply (VCC) | — | W20 | — | 0.5 | SP-5V1-1 | — | — | — |
| 19 | +5V sensor supply (VCC) | — | W21 | — | 0.5 | SP-5V1-1 | — | — | — |
| 20 | +5V sensor supply (VCC) | — | W22 | — | 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 | — | W31 | — | 0.5 | ELITE2500-B-22 | — | — | — |
| 4 | Knock sensor — front | — | W30 | — | 0.5 | ELITE2500-B-21 | — | — | — |
| 5 | Traction control | — | — | — | — | — | — | — | — |
| 6 | Fuel pump voltage monitor (VFP) | — | — | — | — | — | — | — | — |
| 8 | Ignition timing adjuster (IGADJ) | — | — | — | — | — | — | — | — |
| 9 | Alternator FR signal | — | W65 | — | 0.5 | ELITE2500-B-7 | — | — | — |
SP-0V
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 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 | — | — | W15 | — | 0.5 | OEM-D-21 | — | — | — |
| 1 | — | — | W16 | — | 0.5 | OEM-D-22 | — | — | — |
| 1 | — | — | W17 | — | 0.5 | ELITE2500-B-14 | — | — | — |
| 1 | — | — | W18 | — | 0.5 | ELITE2500-B-15 | — | — | — |
| 1 | — | — | W19 | — | 0.5 | ELITE2500-B-16 | — | — | — |
| 1 | — | — | W25 | — | 0.5 | ELITE2500-B-5 | — | — | — |
| 1 | — | — | W28 | — | 0.5 | ELITE2500-B-6 | — | — | — |
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 | ELITE2500-A-26 | — | — | — |
| 1 | — | — | W4 | — | 0.85 | ELITE2500-B-11 | — | — | — |
SP-5V1
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W20 | — | 0.5 | OEM-D-18 | — | — | — |
| 1 | — | — | W21 | — | 0.5 | OEM-D-19 | — | — | — |
| 1 | — | — | W22 | — | 0.5 | OEM-D-20 | — | — | — |
| 1 | — | — | W23 | — | 0.5 | ELITE2500-A-9 | — | — | — |
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 | ELITE2500-A-10 | — | — | — |
| 1 | — | — | W9 | — | 0.85 | ELITE2500-A-11 | — | — | — |
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 | ELITE2500-B-3 | AVI 7 (Air Temp) | analog_in | single_source | |
| OEM-5-F4 | Rear VTEC pressure switch | digital_in | ELITE2500-A-15 | AVI 9 (MAP) | analog_in | single_source | |
| OEM-5-F5 | Front VTEC solenoid valve | high_side_out | ELITE2500-A-31 | Stepper 1 P1 / DPO | switch_out | single_source | |
| OEM-5-F7 | Rear VTEC solenoid valve | high_side_out | ELITE2500-A-32 | Stepper 1 P2 / DPO | switch_out | single_source | |
| OEM-A-1 | Injector 1 | injector_out | ELITE2500-A-19 | INJ 1 | injector_out | single_source | |
| OEM-A-10 | Front O2 sensor heater (HTCNTF) | low_side_out | ELITE2500-B-19 | DPO 4 | low_side_out | single_source | |
| OEM-A-11 | EGR control solenoid | low_side_out | ELITE2500-A-33 | Stepper 1 P3 / DPO | switch_out | single_source | |
| OEM-A-12 | Rear O2 sensor heater (HTCNTR) | low_side_out | ELITE2500-A-24 | DPO 5 (fuel pump trigger) | low_side_out | single_source | |
| OEM-A-13 | Check engine light (WARN) | low_side_out | ELITE2500-A-34 | Stepper 1 P4 / DPO | switch_out | single_source | |
| OEM-A-14 | Chamber volume control solenoid (BPS) | low_side_out | ELITE2500-A-29 | INJ 7 | injector_out | single_source | |
| OEM-A-15 | A/C clutch relay (ACC) | low_side_out | ELITE2500-A-18 | DPO 1 | low_side_out | single_source | |
| OEM-A-18 | Radiator fan control (FANCNTR) | low_side_out | ELITE2500-A-1 | DPO 2 | low_side_out | single_source | |
| OEM-A-2 | Injector 4 | injector_out | ELITE2500-A-22 | INJ 4 | injector_out | single_source | |
| OEM-A-20 | EVAP purge cut-off solenoid (PGS) | low_side_out | ELITE2500-A-30 | INJ 8 | injector_out | single_source | |
| OEM-A-21 | Ignition coil 1 | ignition_out | ELITE2500-A-3 | IGN 1 | ignition_out | single_source | |
| OEM-A-22 | Ignition coil 2 | ignition_out | ELITE2500-A-4 | IGN 2 | ignition_out | single_source | |
| OEM-A-23 | Power ground (PG1) | ground | ELITE2500-A-10 + ELITE2500-A-11 | Battery ground + Battery ground | ground | single_source | |
| OEM-A-24 | Power ground (PG2) | ground | ELITE2500-A-10 + ELITE2500-A-11 | Battery ground + Battery ground | ground | single_source | |
| OEM-A-25 | ECU power (IGP1) | power_in | ELITE2500-A-26 + ELITE2500-B-11 | ECU injector power input + +13.8V ECU supply | power_in | single_source | |
| OEM-A-26 | Sensor ground (LG1) | sensor_ground | ELITE2500-B-14 + ELITE2500-B-15 + ELITE2500-B-16 + ELITE2500-B-5 + ELITE2500-B-6 | Signal ground + Signal ground + Signal ground + Crank (Trigger) (−) + Cam (Home) (−) | sensor_ground + trigger_in | single_source | |
| OEM-A-3 | Injector 2 | injector_out | ELITE2500-A-20 | INJ 2 | injector_out | single_source | |
| OEM-A-4 | Injector 5 | injector_out | ELITE2500-A-27 | INJ 5 | injector_out | corroborated | |
| OEM-A-5 | Injector 3 | injector_out | ELITE2500-A-21 | INJ 3 | injector_out | single_source | |
| OEM-A-6 | Injector 6 | injector_out | ELITE2500-A-28 | INJ 6 | injector_out | single_source | |
| OEM-A-7 | Main relay | low_side_out | ELITE2500-A-23 | DPO 3 | low_side_out | single_source | |
| OEM-A-8 | Fuel pump relay 2 (FLR2) | low_side_out | ELITE2500-A-25 | DPO 6 (ECR OUT) | low_side_out | single_source | |
| OEM-A-9 | Idle air control valve (IACV) | low_side_out | ELITE2500-B-25 | DBW 1 / DPO | hbridge_out | single_source | |
| OEM-B-10 | CYL 2M — CYP sensor 2 return | sensor_ground | ELITE2500-B-14 + ELITE2500-B-15 + ELITE2500-B-16 + ELITE2500-B-5 + ELITE2500-B-6 | Signal ground + Signal ground + Signal ground + Crank (Trigger) (−) + Cam (Home) (−) | sensor_ground + trigger_in | single_source | |
| OEM-B-11 | CYL 1P — CYP sensor 1 signal | trigger_in | ELITE2500-B-2 | Cam (Home) (+) | trigger_in | single_source | |
| OEM-B-12 | CYL 1M — CYP sensor 1 return | sensor_ground | ELITE2500-B-14 + ELITE2500-B-15 + ELITE2500-B-16 + ELITE2500-B-5 + ELITE2500-B-6 | Signal ground + Signal ground + Signal ground + Crank (Trigger) (−) + Cam (Home) (−) | sensor_ground + trigger_in | single_source | |
| OEM-B-13 | CRNK 2P — TDC sensor signal | trigger_in | ELITE2500-B-8 | SPI 1 | digital_in | single_source | |
| OEM-B-14 | CRNK 2M — TDC sensor return | sensor_ground | ELITE2500-B-14 + ELITE2500-B-15 + ELITE2500-B-16 + ELITE2500-B-5 + ELITE2500-B-6 | Signal ground + Signal ground + Signal ground + Crank (Trigger) (−) + Cam (Home) (−) | sensor_ground + trigger_in | single_source | |
| OEM-B-15 | CRNK 1P — crank sensor signal | trigger_in | ELITE2500-B-1 | Crank (Trigger) (+) | trigger_in | single_source | |
| OEM-B-16 | CRNK 1M — crank sensor return | sensor_ground | ELITE2500-B-14 + ELITE2500-B-15 + ELITE2500-B-16 + ELITE2500-B-5 + ELITE2500-B-6 | Signal ground + Signal ground + Signal ground + Crank (Trigger) (−) + Cam (Home) (−) | sensor_ground + trigger_in | single_source | |
| OEM-B-2 | Chassis ground (LG2) | ground | ELITE2500-A-10 + ELITE2500-A-11 | Battery ground + Battery ground | ground | single_source | |
| OEM-B-3 | Ignition coil 6 | ignition_out | ELITE2500-A-8 | IGN 6 | ignition_out | single_source | |
| OEM-B-4 | Ignition coil 5 | ignition_out | ELITE2500-A-7 | IGN 5 | ignition_out | single_source | |
| OEM-B-6 | Ignition coil 4 | ignition_out | ELITE2500-A-6 | IGN 4 | ignition_out | single_source | |
| OEM-B-7 | Neutral switch (M/T) / gear position (A/T) | digital_in | ELITE2500-A-14 | AVI 10 (TPS) | analog_in | single_source | |
| OEM-B-8 | Ignition coil 3 | ignition_out | ELITE2500-A-5 | IGN 3 | ignition_out | single_source | |
| OEM-B-9 | CYL 2P — CYP sensor 2 signal | trigger_in | ELITE2500-B-9 | SPI 2 | digital_in | single_source | |
| OEM-C-1 | ECU power (IGP2) | power_in | ELITE2500-A-26 + ELITE2500-B-11 | ECU injector power input + +13.8V ECU supply | power_in | 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 | ELITE2500-B-10 | SPI 3 | 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 | ELITE2500-A-16 | AVI 2 | analog_in | single_source | |
| OEM-D-12 | EGR lift sensor (EGRL) | analog_in | ELITE2500-B-12 | AVI 6 (O2 Input 1) | analog_in | single_source | |
| OEM-D-13 | Engine coolant temperature (ECT) | temp_in | ELITE2500-B-4 | AVI 8 (Coolant Temp) | analog_in | single_source | |
| OEM-D-14 | Primary O2 sensor | lambda_nb_in | ELITE2500-A-17 | AVI 3 | analog_in | single_source | |
| OEM-D-15 | Intake air temperature (IAT) | temp_in | ELITE2500-B-20 | AVI 5 | analog_in | single_source | |
| OEM-D-16 | Secondary O2 sensor | lambda_nb_in | ELITE2500-A-2 | AVI 4 | analog_in | single_source | |
| OEM-D-17 | MAP sensor | analog_in | ELITE2500-B-13 | AVI 1 (O2 Input 2) | analog_in | single_source | |
| OEM-D-18 | +5V sensor supply (VCC) | vref | ELITE2500-A-9 | +5V DC | vref | single_source | |
| OEM-D-19 | +5V sensor supply (VCC) | vref | ELITE2500-A-9 | +5V DC | vref | single_source | |
| OEM-D-20 | +5V sensor supply (VCC) | vref | ELITE2500-A-9 | +5V DC | vref | single_source | |
| OEM-D-21 | Sensor ground (SG) | sensor_ground | ELITE2500-B-14 + ELITE2500-B-15 + ELITE2500-B-16 + ELITE2500-B-5 + ELITE2500-B-6 | Signal ground + Signal ground + Signal ground + Crank (Trigger) (−) + Cam (Home) (−) | sensor_ground + trigger_in | single_source | |
| OEM-D-22 | Sensor ground (SG) | sensor_ground | ELITE2500-B-14 + ELITE2500-B-15 + ELITE2500-B-16 + ELITE2500-B-5 + ELITE2500-B-6 | Signal ground + Signal ground + Signal ground + Crank (Trigger) (−) + Cam (Home) (−) | sensor_ground + trigger_in | single_source | |
| OEM-D-3 | Knock sensor — rear | knock_in | ELITE2500-B-22 | KNOCK 2 | knock_in | single_source | |
| OEM-D-4 | Knock sensor — front | knock_in | ELITE2500-B-21 | 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 | ELITE2500-B-7 | SPI 4 | 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 | ELITE2500-A-26 | 0.85 | no route | ECU injector power input | — | |
| W4 | SP-14V-1 | ELITE2500-B-11 | 0.85 | no route | +13.8V ECU 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 | ELITE2500-A-10 | 0.85 | no route | Battery ground | — | |
| W9 | SP-GND-1 | ELITE2500-A-11 | 0.85 | no route | Battery 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 | ELITE2500-B-14 | 0.5 | no route | Signal ground | — | |
| W18 | SP-0V-1 | ELITE2500-B-15 | 0.5 | no route | Signal ground | — | |
| W19 | SP-0V-1 | ELITE2500-B-16 | 0.5 | no route | Signal ground | — | |
| W20 | OEM-D-18 | SP-5V1-1 | 0.5 | no route | +5V sensor supply (VCC) | — | |
| W21 | OEM-D-19 | SP-5V1-1 | 0.5 | no route | +5V sensor supply (VCC) | — | |
| W22 | OEM-D-20 | SP-5V1-1 | 0.5 | no route | +5V sensor supply (VCC) | — | |
| W23 | SP-5V1-1 | ELITE2500-A-9 | 0.5 | no route | +5V DC | — | |
| W24 | OEM-B-15 | ELITE2500-B-1 | 0.5 | no route | CRNK 1P — crank sensor signal | — | |
| W25 | SP-0V-1 | ELITE2500-B-5 | 0.5 | no route | Crank (Trigger) (−) | — | |
| W26 | OEM-B-13 | ELITE2500-B-8 | 0.5 | no route | CRNK 2P — TDC sensor signal | — | |
| W27 | OEM-B-11 | ELITE2500-B-2 | 0.5 | no route | CYL 1P — CYP sensor 1 signal | — | |
| W28 | SP-0V-1 | ELITE2500-B-6 | 0.5 | no route | Cam (Home) (−) | — | |
| W29 | OEM-B-9 | ELITE2500-B-9 | 0.5 | no route | CYL 2P — CYP sensor 2 signal | — | |
| W30 | OEM-D-4 | ELITE2500-B-21 | 0.5 | no route | Knock sensor — front | — | |
| W31 | OEM-D-3 | ELITE2500-B-22 | 0.5 | no route | Knock sensor — rear | — | |
| W32 | OEM-A-21 | ELITE2500-A-3 | 0.5 | no route | Ignition coil 1 | — | |
| W33 | OEM-A-22 | ELITE2500-A-4 | 0.5 | no route | Ignition coil 2 | — | |
| W34 | OEM-B-8 | ELITE2500-A-5 | 0.5 | no route | Ignition coil 3 | — | |
| W35 | OEM-B-6 | ELITE2500-A-6 | 0.5 | no route | Ignition coil 4 | — | |
| W36 | OEM-B-4 | ELITE2500-A-7 | 0.5 | no route | Ignition coil 5 | — | |
| W37 | OEM-B-3 | ELITE2500-A-8 | 0.5 | no route | Ignition coil 6 | — | |
| W38 | OEM-A-1 | ELITE2500-A-19 | 0.5 | no route | Injector 1 | — | |
| W39 | OEM-A-3 | ELITE2500-A-20 | 0.5 | no route | Injector 2 | — | |
| W40 | OEM-A-5 | ELITE2500-A-21 | 0.5 | no route | Injector 3 | — | |
| W41 | OEM-A-2 | ELITE2500-A-22 | 0.5 | no route | Injector 4 | — | |
| W42 | OEM-A-4 | ELITE2500-A-27 | 0.5 | no route | Injector 5 | — | |
| W43 | OEM-A-6 | ELITE2500-A-28 | 0.5 | no route | Injector 6 | — | |
| W44 | OEM-A-8 | ELITE2500-A-25 | 0.5 | no route | Fuel pump relay 2 (FLR2) | — | |
| W45 | OEM-A-15 | ELITE2500-A-18 | 0.5 | no route | A/C clutch relay (ACC) | — | |
| W46 | OEM-A-18 | ELITE2500-A-1 | 0.5 | no route | Radiator fan control (FANCNTR) | — | |
| W47 | OEM-A-7 | ELITE2500-A-23 | 0.5 | no route | Main relay | — | |
| W48 | OEM-5-F5 | ELITE2500-A-31 | 0.5 | no route | Front VTEC solenoid valve | — | |
| W49 | OEM-5-F7 | ELITE2500-A-32 | 0.5 | no route | Rear VTEC solenoid valve | — | |
| W50 | OEM-A-10 | ELITE2500-B-19 | 0.5 | no route | Front O2 sensor heater (HTCNTF) | — | |
| W51 | OEM-A-12 | ELITE2500-A-24 | 0.5 | no route | Rear O2 sensor heater (HTCNTR) | — | |
| W52 | OEM-A-11 | ELITE2500-A-33 | 0.5 | no route | EGR control solenoid | — | |
| W53 | OEM-A-13 | ELITE2500-A-34 | 0.5 | no route | Check engine light (WARN) | — | |
| W54 | OEM-A-14 | ELITE2500-A-29 | 0.5 | no route | Chamber volume control solenoid (BPS) | — | |
| W55 | OEM-A-20 | ELITE2500-A-30 | 0.5 | no route | EVAP purge cut-off solenoid (PGS) | — | |
| W56 | OEM-A-9 | ELITE2500-B-25 | 0.5 | no route | Idle air control valve (IACV) | — | |
| W57 | OEM-D-17 | ELITE2500-B-13 | 0.5 | no route | MAP sensor | — | |
| W58 | OEM-D-11 | ELITE2500-A-16 | 0.5 | no route | Throttle position sensor (TPS) | — | |
| W59 | OEM-D-14 | ELITE2500-A-17 | 0.5 | no route | Primary O2 sensor | — | |
| W60 | OEM-D-16 | ELITE2500-A-2 | 0.5 | no route | Secondary O2 sensor | — | |
| W61 | OEM-D-13 | ELITE2500-B-4 | 0.5 | no route | Engine coolant temperature (ECT) | — | |
| W62 | OEM-D-15 | ELITE2500-B-20 | 0.5 | no route | Intake air temperature (IAT) | — | |
| W63 | OEM-D-12 | ELITE2500-B-12 | 0.5 | no route | EGR lift sensor (EGRL) | — | |
| W64 | OEM-C-2 | ELITE2500-B-10 | 0.5 | no route | Vehicle speed sensor (VSS) | — | |
| W65 | OEM-D-9 | ELITE2500-B-7 | 0.5 | no route | Alternator FR signal | — | |
| W66 | OEM-5-F2 | ELITE2500-B-3 | 0.5 | no route | Front VTEC pressure switch | — | |
| W67 | OEM-5-F4 | ELITE2500-A-15 | 0.5 | no route | Rear VTEC pressure switch | — | |
| W68 | OEM-B-7 | ELITE2500-A-14 | 0.5 | no route | Neutral switch (M/T) / gear position (A/T) | — |
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 (16)
| Severity | Code | Subject | Message |
|---|---|---|---|
| warn | NET_FAMILY | OEM-5-F2 ↔ ELITE2500-B-3 | OEM-5-F2 "Front VTEC pressure switch" [digital_in] is wired to ELITE2500-B-3 "AVI 7 (Air Temp)" [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-5-F4 ↔ ELITE2500-A-15 | OEM-5-F4 "Rear VTEC pressure switch" [digital_in] is wired to ELITE2500-A-15 "AVI 9 (MAP)" [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-A-9 ↔ ELITE2500-B-25 | OEM-A-9 "Idle air control valve (IACV)" [low_side_out] is wired to ELITE2500-B-25 "DBW 1 / DPO" [hbridge_out]. A half-bridge can act as a low-side switch only if configured that way. |
| warn | NET_FAMILY | OEM-B-13 ↔ ELITE2500-B-8 | OEM-B-13 "CRNK 2P — TDC sensor signal" [trigger_in] is wired to ELITE2500-B-8 "SPI 1" [digital_in]. Hall-type cam/speed signals can use a digital input if it handles the frequency; VR signals cannot. |
| warn | NET_FAMILY | OEM-B-7 ↔ ELITE2500-A-14 | OEM-B-7 "Neutral switch (M/T) / gear position (A/T)" [digital_in] is wired to ELITE2500-A-14 "AVI 10 (TPS)" [analog_in]. Analog and digital on one net. A switch on an analog input works with a pull-up and a threshold; an analog sensor on a digital input loses its value. |
| warn | NET_FAMILY | OEM-B-9 ↔ ELITE2500-B-9 | OEM-B-9 "CYL 2P — CYP sensor 2 signal" [trigger_in] is wired to ELITE2500-B-9 "SPI 2" [digital_in]. Hall-type cam/speed signals can use a digital input if it handles the frequency; VR signals cannot. |
| info | NET_FAMILY | OEM-5-F5 ↔ ELITE2500-A-31 | OEM-5-F5 "Front VTEC solenoid valve" [high_side_out] is wired to ELITE2500-A-31 "Stepper 1 P1 / DPO" [switch_out]. Configure this output as high side. |
| info | NET_FAMILY | OEM-5-F7 ↔ ELITE2500-A-32 | OEM-5-F7 "Rear VTEC solenoid valve" [high_side_out] is wired to ELITE2500-A-32 "Stepper 1 P2 / DPO" [switch_out]. Configure this output as high side. |
| info | NET_FAMILY | OEM-A-11 ↔ ELITE2500-A-33 | OEM-A-11 "EGR control solenoid" [low_side_out] is wired to ELITE2500-A-33 "Stepper 1 P3 / DPO" [switch_out]. Configure this output as low side. |
| info | NET_FAMILY | OEM-A-13 ↔ ELITE2500-A-34 | OEM-A-13 "Check engine light (WARN)" [low_side_out] is wired to ELITE2500-A-34 "Stepper 1 P4 / DPO" [switch_out]. Configure this output as low side. |
| info | NET_FAMILY | OEM-A-14 ↔ ELITE2500-A-29 | OEM-A-14 "Chamber volume control solenoid (BPS)" [low_side_out] is wired to ELITE2500-A-29 "INJ 7" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | NET_FAMILY | OEM-A-20 ↔ ELITE2500-A-30 | OEM-A-20 "EVAP purge cut-off solenoid (PGS)" [low_side_out] is wired to ELITE2500-A-30 "INJ 8" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | NET_FAMILY | OEM-B-12 ↔ ELITE2500-B-5 | OEM-B-12 "CYL 1M — CYP sensor 1 return" [sensor_ground] is wired to ELITE2500-B-5 "Crank (Trigger) (−)" [trigger_in]. Trigger return tied to sensor/trigger ground: correct for single-ended trigger inputs. |
| info | NET_FAMILY | OEM-D-13 ↔ ELITE2500-B-4 | OEM-D-13 "Engine coolant temperature (ECT)" [temp_in] is wired to ELITE2500-B-4 "AVI 8 (Coolant Temp)" [analog_in]. Thermistor on a plain analog input needs a pull-up; check the channel can enable one. |
| info | NET_FAMILY | OEM-D-15 ↔ ELITE2500-B-20 | OEM-D-15 "Intake air temperature (IAT)" [temp_in] is wired to ELITE2500-B-20 "AVI 5" [analog_in]. Thermistor on a plain analog input needs a pull-up; check the channel can enable one. |
| info | UNMAPPED | OEM | 13 optional OEM pins are not mapped: 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-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
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): Haltech Elite 2500 has no battery-constant input; not needed - OEM-C 4: Tachometer output (NEP): no free tacho/frequency_out/low_side/ls_hs on Haltech Elite 2500 - OEM-C 11: Starter switch (STS): no free switch_in/frequency_in/analog_0_5 on Haltech Elite 2500 - OEM-C 3: A/C switch (ACS): no free switch_in/frequency_in/analog_0_5 on Haltech Elite 2500 - OEM-C 5: A/C pressure switch (PDSW): no free switch_in/frequency_in/analog_0_5 on Haltech Elite 2500 - OEM-C 7: Clutch switch (M/T): no free switch_in/frequency_in/analog_0_5 on Haltech Elite 2500 - OEM-C 9: Service check connector (SCS): no free switch_in/frequency_in/analog_0_5 on Haltech Elite 2500 - OEM-D 8: Ignition timing adjuster (IGADJ): no free switch_in/frequency_in/analog_0_5 on Haltech Elite 2500 - 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 - ELITE2500-A 13: 12V ignition 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 | Haltech Elite 2500 (HT-151300) spec sheet | https://joeblospeedshop.com/wp-content/uploads/2023/11/HT-151300_SPEC-SHEET-2500-ELITE.pdf | archive | 2026-10-05 | c97da78cb851 |
| 4 | vendor_doc | Haltech Elite 2500 — 26-pin connector pinout | https://support.haltech.com/portal/en/kb/articles/main-connector-26-pin-elite2500 | archive | 2026-10-05 | ea6fd4d27ac7 |
| 4 | vendor_doc | Haltech Elite 2500 — 34-pin main connector pinout | https://support.haltech.com/portal/en/kb/articles/main-connector-34-pin-elite2500 | archive | 2026-10-05 | 4e633dff8340 |
| 3 | vendor_doc | dodo-upgrades: Honda OBD1 V6 ECU pinout | https://dodo-upgrades.nl/index.php/obd1-v6-pinouts/ | archive | 2026-10-05 | f9539af28904 |