Honda NSX NA2 1997-2005 (C32B) → FuelTech FT450 (auto)
Honda NSX NA2 1997-2005 (C32B) — FuelTech — FT450
⚠ NOT CHECKED. Don't build from this.
Drawn by Michael Gnankou · Rev 0 · draft · 2026-10-11
Before you start
Not confident with automotive wiring? Have a professional harness builder or tuner do it, or check your work before first power-up. A wiring mistake can damage the ECU, the engine or the car, or start a fire.
| Status | draft · not yet verified: nobody has reported building and running this harness |
|---|---|
| Open errors | 11: read the Findings page before cutting any wire |
| Size of the job | 51 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-13 | SP-14V-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W2 | OEM-C-1 | SP-14V-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W3 | OEM-G-10 | SP-14V-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W4 | OEM-G-2 | SP-14V-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W5 | OEM-G-3 | SP-14V-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W6 | OEM-G-9 | SP-14V-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W7 | SP-14V-1 | FT450-A-A13 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W8 | OEM-A-12 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W9 | OEM-A-25 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W10 | OEM-G-7 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W11 | OEM-G-8 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W12 | SP-GND-1 | FT450-A-A7 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W13 | OEM-A-26 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W14 | OEM-B-13 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W15 | OEM-B-14 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W16 | OEM-B-15 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W17 | OEM-B-16 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W18 | OEM-B-9 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W19 | OEM-D-11 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W20 | OEM-F-15 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W21 | OEM-F-2 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W22 | SP-0V-1 | FT450-A-A12 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W23 | OEM-D-10 | SP-5V1-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W24 | OEM-F-1 | SP-5V1-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W25 | OEM-F-14 | SP-5V1-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W26 | SP-5V1-1 | FT450-A-A14 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W27 | OEM-B-8 | FT450-A-A18 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W28 | SP-0V-1 | FT450-A-A18 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W29 | OEM-B-7 | FT450-A-A19 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W30 | OEM-B-6 | FT450-A-A17 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W31 | OEM-A-11 | FT450-A-A8 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W32 | OEM-A-24 | FT450-A-A9 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W33 | OEM-B-12 | FT450-A-A10 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W34 | OEM-B-11 | FT450-A-A11 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W35 | OEM-A-1 | FT450-A-A1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W36 | OEM-A-2 | FT450-A-A2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W37 | OEM-A-3 | FT450-A-A1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W38 | OEM-A-14 | FT450-A-A2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W39 | OEM-A-15 | FT450-A-A1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W40 | OEM-A-16 | FT450-A-A2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W41 | OEM-A-5 | FT450-A-A6 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W42 | OEM-F-19 | FT450-A-A3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W43 | OEM-F-20 | FT450-A-A4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W44 | OEM-D-9 | FT450-A-A20 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W45 | OEM-F-13 | FT450-A-A21 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W46 | OEM-F-12 | FT450-A-A22 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W47 | OEM-D-12 | FT450-A-A23 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W48 | OEM-D-7 | FT450-A-A24 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W49 | OEM-F-4 | FT450-A-A5 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W50 | OEM-D-16 | FT450-A-A25 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W51 | OEM-D-8 | FT450-A-A26 | 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 | FT450-A-A13 | FT450-A-A12 | open (OL) | +12 V supply must not touch sensor ground | |
| 2 | FT450-A-A12 | FT450-A-A14 | open (OL) | sensor ground must not touch 5 V sensor reference | |
| 3 | FT450-A-A13 | FT450-A-A14 | open (OL) | +12 V supply must not touch 5 V sensor reference | |
| 4 | FT450-A-A7 | FT450-A-A13 | open (OL) | power ground must not touch +12 V supply | |
| 5 | FT450-A-A7 | FT450-A-A14 | open (OL) | power ground 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
FT450-A
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| A1 | Injector 1 (Bank A) | — | W35 | — | 0.5 | OEM-A-1 | — | — | — |
| A1 | Injector 1 (Bank A) | — | W37 | — | 0.5 | OEM-A-3 | — | — | — |
| A1 | Injector 1 (Bank A) | — | W39 | — | 0.5 | OEM-A-15 | — | — | — |
| A10 | Ignition 3 | — | W33 | — | 0.5 | OEM-B-12 | — | — | — |
| A11 | Ignition 4 | — | W34 | — | 0.5 | OEM-B-11 | — | — | — |
| A12 | Signal ground | — | W22 | — | 0.5 | SP-0V-1 | — | — | — |
| A13 | +12V switched | — | W7 | — | 0.85 | SP-14V-1 | — | — | — |
| A14 | +5V sensor supply | — | W26 | — | 0.5 | SP-5V1-1 | — | — | — |
| A15 | CAN A LOW | — | — | — | — | — | — | — | — |
| A16 | CAN A HIGH | — | — | — | — | — | — | — | — |
| A17 | Phase input (cam) | — | W30 | — | 0.5 | OEM-B-6 | — | — | — |
| A18 | RPM reference (crank -) | — | W27 | — | 0.5 | OEM-B-8 | — | — | — |
| A18 | RPM reference (crank -) | — | W28 | — | 0.5 | SP-0V-1 | — | — | — |
| A19 | RPM signal (crank +) | — | W29 | — | 0.5 | OEM-B-7 | — | — | — |
| A2 | Injector 2 (Bank A) | — | W36 | — | 0.5 | OEM-A-2 | — | — | — |
| A2 | Injector 2 (Bank A) | — | W38 | — | 0.5 | OEM-A-14 | — | — | — |
| A2 | Injector 2 (Bank A) | — | W40 | — | 0.5 | OEM-A-16 | — | — | — |
| A20 | White input 1 | — | W44 | — | 0.5 | OEM-D-9 | — | — | — |
| A21 | White input 2 | — | W45 | — | 0.5 | OEM-F-13 | — | — | — |
| A22 | White input 3 (TPS) | — | W46 | — | 0.5 | OEM-F-12 | — | — | — |
| A23 | White input 4 (oil pressure) | — | W47 | — | 0.5 | OEM-D-12 | — | — | — |
| A24 | White input 5 (water temp) | — | W48 | — | 0.5 | OEM-D-7 | — | — | — |
| A25 | White input 6 (fuel pressure) | — | W50 | — | 0.5 | OEM-D-16 | — | — | — |
| A26 | White input 7 (air temp) | — | W51 | — | 0.5 | OEM-D-8 | — | — | — |
| A3 | Aux 1 | — | W42 | — | 0.5 | OEM-F-19 | — | — | — |
| A4 | Aux 2 | — | W43 | — | 0.5 | OEM-F-20 | — | — | — |
| A5 | Aux 3 | — | W49 | — | 0.5 | OEM-F-4 | — | — | — |
| A6 | Aux 4 (fuel pump / relays) | — | W41 | — | 0.5 | OEM-A-5 | — | — | — |
| A7 | Power ground | — | W12 | — | 0.85 | SP-GND-1 | — | — | — |
| A8 | Ignition 1 | — | W31 | — | 0.5 | OEM-A-11 | — | — | — |
| A9 | Ignition 2 | — | W32 | — | 0.5 | OEM-A-24 | — | — | — |
OEM-A
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Injector 1 (INJ1) | — | W35 | — | 0.5 | FT450-A-A1 | — | — | — |
| 10 | Rear secondary O2 heater (RSO2SHTC) | — | — | — | — | — | — | — | — |
| 11 | Ignition coil 1 (IGN COIL1) | — | W31 | — | 0.5 | FT450-A-A8 | — | — | — |
| 12 | Power ground (PG1) | — | W8 | — | 0.85 | SP-GND-1 | — | — | — |
| 13 | ECM power source (IGP1) | — | W1 | — | 0.85 | SP-14V-1 | — | — | — |
| 14 | Injector 4 (INJ4) | — | W38 | — | 0.5 | FT450-A-A2 | — | — | — |
| 15 | Injector 5 (INJ5) | — | W39 | — | 0.5 | FT450-A-A1 | — | — | — |
| 16 | Injector 6 (INJ6) | — | W40 | — | 0.5 | FT450-A-A2 | — | — | — |
| 17 | EVAP bypass solenoid (2WBS) | — | — | — | — | — | — | — | — |
| 2 | Injector 2 (INJ2) | — | W36 | — | 0.5 | FT450-A-A2 | — | — | — |
| 20 | IAB control solenoid (IABCS) | — | — | — | — | — | — | — | — |
| 21 | EVAP purge control solenoid (PCS) | — | — | — | — | — | — | — | — |
| 22 | Front primary O2 heater (FPO2SHTC) | — | — | — | — | — | — | — | — |
| 23 | Rear primary O2 heater (RPO2SHTC) | — | — | — | — | — | — | — | — |
| 24 | Ignition coil 2 (IGN COIL2) | — | W32 | — | 0.5 | FT450-A-A9 | — | — | — |
| 25 | Power ground (PG2) | — | W9 | — | 0.85 | SP-GND-1 | — | — | — |
| 26 | Logic ground (LG1) | — | W13 | — | 0.5 | SP-0V-1 | — | — | — |
| 3 | Injector 3 (INJ3) | — | W37 | — | 0.5 | FT450-A-A1 | — | — | — |
| 4 | EVAP canister vent shut valve (VSV) | — | — | — | — | — | — | — | — |
| 5 | Fuel pump relay (FLR1) | — | W41 | — | 0.5 | FT450-A-A6 | — | — | — |
| 6 | EGR control solenoid (ESOL) | — | — | — | — | — | — | — | — |
| 7 | Malfunction indicator lamp (MIL) | — | — | — | — | — | — | — | — |
| 8 | A/C clutch relay (ACC) | — | — | — | — | — | — | — | — |
| 9 | Front secondary O2 heater (FSO2SHTC) | — | — | — | — | — | — | — | — |
OEM-B
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | VTEC pressure switch front (VTP SWF) | — | — | — | — | — | — | — | — |
| 10 | Ignition coil 5 (IGN COIL5) | — | — | — | — | — | — | — | — |
| 11 | Ignition coil 4 (IGN COIL4) | — | W34 | — | 0.5 | FT450-A-A11 | — | — | — |
| 12 | Ignition coil 3 (IGN COIL3) | — | W33 | — | 0.5 | FT450-A-A10 | — | — | — |
| 13 | Cylinder position sensor 2 return (CYP 2M) | — | W14 | — | 0.5 | SP-0V-1 | — | — | — |
| 14 | Cylinder position sensor 1 return (CYP 1M) | — | W15 | — | 0.5 | SP-0V-1 | — | — | — |
| 15 | Crank position sensor 2 return (CKP 2M) | — | W16 | — | 0.5 | SP-0V-1 | — | — | — |
| 16 | Crank position sensor 1 return (CKP 1M) | — | W17 | — | 0.5 | SP-0V-1 | — | — | — |
| 2 | Ignition coil 6 (IGN COIL6) | — | — | — | — | — | — | — | — |
| 3 | VTEC pressure switch rear (VTP SWR) | — | — | — | — | — | — | — | — |
| 4 | Neutral switch (NT SW, M/T) | — | — | — | — | — | — | — | — |
| 5 | Cylinder position sensor 2 + (CYP 2P) | — | — | — | — | — | — | — | — |
| 6 | Cylinder position sensor 1 + (CYP 1P) | — | W30 | — | 0.5 | FT450-A-A17 | — | — | — |
| 7 | Crank position sensor 2 + (CKP 2P) | — | W29 | — | 0.5 | FT450-A-A19 | — | — | — |
| 8 | Crank position sensor 1 + (CKP 1P) | — | W27 | — | 0.5 | FT450-A-A18 | — | — | — |
| 9 | Logic ground (LG2) | — | W18 | — | 0.5 | SP-0V-1 | — | — | — |
OEM-C
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | ECM power source (IGP2) | — | W2 | — | 0.85 | SP-14V-1 | — | — | — |
| 4 | Clutch switch (MTCLS, M/T) | — | — | — | — | — | — | — | — |
| 6 | Starter switch (STS) | — | — | — | — | — | — | — | — |
| 7 | Vehicle speed sensor (VSS) | — | — | — | — | — | — | — | — |
| 8 | Engine speed pulse (NEP) | — | — | — | — | — | — | — | — |
OEM-D
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Backup power (VBU) | — | — | — | — | — | — | — | — |
| 10 | Sensor 5V supply (VCC2) | — | W23 | — | 0.5 | SP-5V1-1 | — | — | — |
| 11 | Sensor ground (SG2) | — | W19 | — | 0.5 | SP-0V-1 | — | — | — |
| 12 | Throttle position sensor (TPS) | — | W47 | — | 0.5 | FT450-A-A23 | — | — | — |
| 13 | Knock sensor front (KSF) | — | — | — | — | — | — | — | — |
| 16 | Front secondary O2 signal (O2S FS) | — | W50 | — | 0.5 | FT450-A-A25 | — | — | — |
| 17 | Rear secondary O2 signal (O2S RS) | — | — | — | — | — | — | — | — |
| 18 | Front primary O2 signal (O2S FP) | — | — | — | — | — | — | — | — |
| 19 | Rear primary O2 signal (O2S RP) | — | — | — | — | — | — | — | — |
| 2 | Knock sensor rear (KSR) | — | — | — | — | — | — | — | — |
| 20 | EGR valve lift sensor (EGRL) | — | — | — | — | — | — | — | — |
| 4 | K-line diagnostics | — | — | — | — | — | — | — | — |
| 7 | Engine coolant temperature (ECT) | — | W48 | — | 0.5 | FT450-A-A24 | — | — | — |
| 8 | Intake air temperature (IAT) | — | W51 | — | 0.5 | FT450-A-A26 | — | — | — |
| 9 | MAP sensor | — | W44 | — | 0.5 | FT450-A-A20 | — | — | — |
OEM-F
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Sensor 5V supply (VCC1) | — | W24 | — | 0.5 | SP-5V1-1 | — | — | — |
| 12 | Accelerator pedal position 2 (AP2) | — | W46 | — | 0.5 | FT450-A-A22 | — | — | — |
| 13 | Accelerator pedal position 1 (AP1) | — | W45 | — | 0.5 | FT450-A-A21 | — | — | — |
| 14 | Accelerator pedal 5V supply (VCC3) | — | W25 | — | 0.5 | SP-5V1-1 | — | — | — |
| 15 | Accelerator pedal ground (SG3) | — | W20 | — | 0.5 | SP-0V-1 | — | — | — |
| 16 | Brake switch 1 (BKSW1) | — | — | — | — | — | — | — | — |
| 19 | VTEC solenoid front (VT SOLF) | — | W42 | — | 0.5 | FT450-A-A3 | — | — | — |
| 2 | Sensor ground (SG1) | — | W21 | — | 0.5 | SP-0V-1 | — | — | — |
| 20 | VTEC solenoid rear (VT SOLR) | — | W43 | — | 0.5 | FT450-A-A4 | — | — | — |
| 4 | Fuel pump relay 2 (FLR2) | — | W49 | — | 0.5 | FT450-A-A5 | — | — | — |
| 6 | Brake switch 2 (BKSW2) | — | — | — | — | — | — | — | — |
OEM-G
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 10 | Throttle motor common power phases 2&4 (COM2) | — | W3 | — | 0.85 | SP-14V-1 | — | — | — |
| 11 | Throttle motor phase 3 (PM3) | — | — | — | — | — | — | — | — |
| 12 | Throttle motor phase 4 (PM4) | — | — | — | — | — | — | — | — |
| 2 | Throttle motor power source 1 (IGM1) | — | W4 | — | 0.85 | SP-14V-1 | — | — | — |
| 3 | Throttle motor power source 2 (IGM2) | — | W5 | — | 0.85 | SP-14V-1 | — | — | — |
| 4 | Throttle motor phase 1 (PM1) | — | — | — | — | — | — | — | — |
| 5 | Throttle motor phase 2 (PM2) | — | — | — | — | — | — | — | — |
| 7 | Throttle motor ground 1 (PGM1) | — | W10 | — | 0.85 | SP-GND-1 | — | — | — |
| 8 | Throttle motor ground 2 (PGM2) | — | W11 | — | 0.85 | SP-GND-1 | — | — | — |
| 9 | Throttle motor common power phases 1&3 (COM1) | — | W6 | — | 0.85 | SP-14V-1 | — | — | — |
SP-0V
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W13 | — | 0.5 | OEM-A-26 | — | — | — |
| 1 | — | — | W14 | — | 0.5 | OEM-B-13 | — | — | — |
| 1 | — | — | W15 | — | 0.5 | OEM-B-14 | — | — | — |
| 1 | — | — | W16 | — | 0.5 | OEM-B-15 | — | — | — |
| 1 | — | — | W17 | — | 0.5 | OEM-B-16 | — | — | — |
| 1 | — | — | W18 | — | 0.5 | OEM-B-9 | — | — | — |
| 1 | — | — | W19 | — | 0.5 | OEM-D-11 | — | — | — |
| 1 | — | — | W20 | — | 0.5 | OEM-F-15 | — | — | — |
| 1 | — | — | W21 | — | 0.5 | OEM-F-2 | — | — | — |
| 1 | — | — | W22 | — | 0.5 | FT450-A-A12 | — | — | — |
| 1 | — | — | W28 | — | 0.5 | FT450-A-A18 | — | — | — |
SP-14V
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W1 | — | 0.85 | OEM-A-13 | — | — | — |
| 1 | — | — | W2 | — | 0.85 | OEM-C-1 | — | — | — |
| 1 | — | — | W3 | — | 0.85 | OEM-G-10 | — | — | — |
| 1 | — | — | W4 | — | 0.85 | OEM-G-2 | — | — | — |
| 1 | — | — | W5 | — | 0.85 | OEM-G-3 | — | — | — |
| 1 | — | — | W6 | — | 0.85 | OEM-G-9 | — | — | — |
| 1 | — | — | W7 | — | 0.85 | FT450-A-A13 | — | — | — |
SP-5V1
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W23 | — | 0.5 | OEM-D-10 | — | — | — |
| 1 | — | — | W24 | — | 0.5 | OEM-F-1 | — | — | — |
| 1 | — | — | W25 | — | 0.5 | OEM-F-14 | — | — | — |
| 1 | — | — | W26 | — | 0.5 | FT450-A-A14 | — | — | — |
SP-GND
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W8 | — | 0.85 | OEM-A-12 | — | — | — |
| 1 | — | — | W9 | — | 0.85 | OEM-A-25 | — | — | — |
| 1 | — | — | W10 | — | 0.85 | OEM-G-7 | — | — | — |
| 1 | — | — | W11 | — | 0.85 | OEM-G-8 | — | — | — |
| 1 | — | — | W12 | — | 0.85 | FT450-A-A7 | — | — | — |
Pin map
| OEM point | OEM function | OEM family | Target point | Target function | Target family | Wire colour | Evidence |
|---|---|---|---|---|---|---|---|
| OEM-A-1 | Injector 1 (INJ1) | injector_out | FT450-A-A1 | Injector 1 (Bank A) | injector_out | single_source | |
| OEM-A-10 | Rear secondary O2 heater (RSO2SHTC) | low_side_out | — | — | — | single_source | |
| OEM-A-11 | Ignition coil 1 (IGN COIL1) | ignition_out | FT450-A-A8 | Ignition 1 | ignition_out | single_source | |
| OEM-A-12 | Power ground (PG1) | ground | FT450-A-A7 | Power ground | ground | single_source | |
| OEM-A-13 | ECM power source (IGP1) | power_in | FT450-A-A13 | +12V switched | power_in | single_source | |
| OEM-A-14 | Injector 4 (INJ4) | injector_out | FT450-A-A2 | Injector 2 (Bank A) | injector_out | single_source | |
| OEM-A-15 | Injector 5 (INJ5) | injector_out | FT450-A-A1 | Injector 1 (Bank A) | injector_out | single_source | |
| OEM-A-16 | Injector 6 (INJ6) | injector_out | FT450-A-A2 | Injector 2 (Bank A) | injector_out | single_source | |
| OEM-A-17 | EVAP bypass solenoid (2WBS) | low_side_out | — | — | — | single_source | |
| OEM-A-2 | Injector 2 (INJ2) | injector_out | FT450-A-A2 | Injector 2 (Bank A) | injector_out | single_source | |
| OEM-A-20 | IAB control solenoid (IABCS) | low_side_out | — | — | — | single_source | |
| OEM-A-21 | EVAP purge control solenoid (PCS) | low_side_out | — | — | — | single_source | |
| OEM-A-22 | Front primary O2 heater (FPO2SHTC) | low_side_out | — | — | — | single_source | |
| OEM-A-23 | Rear primary O2 heater (RPO2SHTC) | low_side_out | — | — | — | single_source | |
| OEM-A-24 | Ignition coil 2 (IGN COIL2) | ignition_out | FT450-A-A9 | Ignition 2 | ignition_out | single_source | |
| OEM-A-25 | Power ground (PG2) | ground | FT450-A-A7 | Power ground | ground | single_source | |
| OEM-A-26 | Logic ground (LG1) | sensor_ground | FT450-A-A12 + FT450-A-A18 | Signal ground + RPM reference (crank -) | sensor_ground + trigger_in | single_source | |
| OEM-A-3 | Injector 3 (INJ3) | injector_out | FT450-A-A1 | Injector 1 (Bank A) | injector_out | single_source | |
| OEM-A-4 | EVAP canister vent shut valve (VSV) | low_side_out | — | — | — | single_source | |
| OEM-A-5 | Fuel pump relay (FLR1) | low_side_out | FT450-A-A6 | Aux 4 (fuel pump / relays) | low_side_out | single_source | |
| OEM-A-6 | EGR control solenoid (ESOL) | low_side_out | — | — | — | single_source | |
| OEM-A-7 | Malfunction indicator lamp (MIL) | low_side_out | — | — | — | single_source | |
| OEM-A-8 | A/C clutch relay (ACC) | low_side_out | — | — | — | single_source | |
| OEM-A-9 | Front secondary O2 heater (FSO2SHTC) | low_side_out | — | — | — | single_source | |
| OEM-B-1 | VTEC pressure switch front (VTP SWF) | digital_in | — | — | — | single_source | |
| OEM-B-10 | Ignition coil 5 (IGN COIL5) | ignition_out | — | — | — | single_source | |
| OEM-B-11 | Ignition coil 4 (IGN COIL4) | ignition_out | FT450-A-A11 | Ignition 4 | ignition_out | single_source | |
| OEM-B-12 | Ignition coil 3 (IGN COIL3) | ignition_out | FT450-A-A10 | Ignition 3 | ignition_out | single_source | |
| OEM-B-13 | Cylinder position sensor 2 return (CYP 2M) | sensor_ground | FT450-A-A12 + FT450-A-A18 | Signal ground + RPM reference (crank -) | sensor_ground + trigger_in | single_source | |
| OEM-B-14 | Cylinder position sensor 1 return (CYP 1M) | sensor_ground | FT450-A-A12 + FT450-A-A18 | Signal ground + RPM reference (crank -) | sensor_ground + trigger_in | single_source | |
| OEM-B-15 | Crank position sensor 2 return (CKP 2M) | sensor_ground | FT450-A-A12 + FT450-A-A18 | Signal ground + RPM reference (crank -) | sensor_ground + trigger_in | single_source | |
| OEM-B-16 | Crank position sensor 1 return (CKP 1M) | sensor_ground | FT450-A-A12 + FT450-A-A18 | Signal ground + RPM reference (crank -) | sensor_ground + trigger_in | single_source | |
| OEM-B-2 | Ignition coil 6 (IGN COIL6) | ignition_out | — | — | — | single_source | |
| OEM-B-3 | VTEC pressure switch rear (VTP SWR) | digital_in | — | — | — | single_source | |
| OEM-B-4 | Neutral switch (NT SW, M/T) | digital_in | — | — | — | single_source | |
| OEM-B-5 | Cylinder position sensor 2 + (CYP 2P) | trigger_in | — | — | — | single_source | |
| OEM-B-6 | Cylinder position sensor 1 + (CYP 1P) | trigger_in | FT450-A-A17 | Phase input (cam) | trigger_in | single_source | |
| OEM-B-7 | Crank position sensor 2 + (CKP 2P) | trigger_in | FT450-A-A19 | RPM signal (crank +) | trigger_in | single_source | |
| OEM-B-8 | Crank position sensor 1 + (CKP 1P) | trigger_in | FT450-A-A12 + FT450-A-A18 | Signal ground + RPM reference (crank -) | sensor_ground + trigger_in | single_source | |
| OEM-B-9 | Logic ground (LG2) | sensor_ground | FT450-A-A12 + FT450-A-A18 | Signal ground + RPM reference (crank -) | sensor_ground + trigger_in | single_source | |
| OEM-C-1 | ECM power source (IGP2) | power_in | FT450-A-A13 | +12V switched | power_in | single_source | |
| OEM-C-4 | Clutch switch (MTCLS, M/T) | digital_in | — | — | — | single_source | |
| OEM-C-6 | Starter switch (STS) | digital_in | — | — | — | single_source | |
| OEM-C-7 | Vehicle speed sensor (VSS) | digital_in | — | — | — | single_source | |
| OEM-C-8 | Engine speed pulse (NEP) | tacho_out | — | — | — | single_source | |
| OEM-D-1 | Backup power (VBU) | power_in | — | — | — | single_source | |
| OEM-D-10 | Sensor 5V supply (VCC2) | vref | FT450-A-A14 | +5V sensor supply | vref | single_source | |
| OEM-D-11 | Sensor ground (SG2) | sensor_ground | FT450-A-A12 + FT450-A-A18 | Signal ground + RPM reference (crank -) | sensor_ground + trigger_in | single_source | |
| OEM-D-12 | Throttle position sensor (TPS) | analog_in | FT450-A-A23 | White input 4 (oil pressure) | analog_in | single_source | |
| OEM-D-13 | Knock sensor front (KSF) | knock_in | — | — | — | single_source | |
| OEM-D-16 | Front secondary O2 signal (O2S FS) | lambda_nb_in | FT450-A-A25 | White input 6 (fuel pressure) | analog_in | single_source | |
| OEM-D-17 | Rear secondary O2 signal (O2S RS) | lambda_nb_in | — | — | — | single_source | |
| OEM-D-18 | Front primary O2 signal (O2S FP) | lambda_nb_in | — | — | — | single_source | |
| OEM-D-19 | Rear primary O2 signal (O2S RP) | lambda_nb_in | — | — | — | single_source | |
| OEM-D-2 | Knock sensor rear (KSR) | knock_in | — | — | — | single_source | |
| OEM-D-20 | EGR valve lift sensor (EGRL) | analog_in | — | — | — | single_source | |
| OEM-D-4 | K-line diagnostics | serial | — | — | — | single_source | |
| OEM-D-7 | Engine coolant temperature (ECT) | temp_in | FT450-A-A24 | White input 5 (water temp) | temp_in | single_source | |
| OEM-D-8 | Intake air temperature (IAT) | temp_in | FT450-A-A26 | White input 7 (air temp) | temp_in | single_source | |
| OEM-D-9 | MAP sensor | analog_in | FT450-A-A20 | White input 1 | analog_in | single_source | |
| OEM-F-1 | Sensor 5V supply (VCC1) | vref | FT450-A-A14 | +5V sensor supply | vref | single_source | |
| OEM-F-12 | Accelerator pedal position 2 (AP2) | analog_in | FT450-A-A22 | White input 3 (TPS) | analog_in | single_source | |
| OEM-F-13 | Accelerator pedal position 1 (AP1) | analog_in | FT450-A-A21 | White input 2 | analog_in | single_source | |
| OEM-F-14 | Accelerator pedal 5V supply (VCC3) | vref | FT450-A-A14 | +5V sensor supply | vref | single_source | |
| OEM-F-15 | Accelerator pedal ground (SG3) | sensor_ground | FT450-A-A12 + FT450-A-A18 | Signal ground + RPM reference (crank -) | sensor_ground + trigger_in | single_source | |
| OEM-F-16 | Brake switch 1 (BKSW1) | digital_in | — | — | — | single_source | |
| OEM-F-19 | VTEC solenoid front (VT SOLF) | low_side_out | FT450-A-A3 | Aux 1 | low_side_out | single_source | |
| OEM-F-2 | Sensor ground (SG1) | sensor_ground | FT450-A-A12 + FT450-A-A18 | Signal ground + RPM reference (crank -) | sensor_ground + trigger_in | single_source | |
| OEM-F-20 | VTEC solenoid rear (VT SOLR) | low_side_out | FT450-A-A4 | Aux 2 | low_side_out | single_source | |
| OEM-F-4 | Fuel pump relay 2 (FLR2) | low_side_out | FT450-A-A5 | Aux 3 | low_side_out | single_source | |
| OEM-F-6 | Brake switch 2 (BKSW2) | digital_in | — | — | — | single_source | |
| OEM-G-10 | Throttle motor common power phases 2&4 (COM2) | power_in | FT450-A-A13 | +12V switched | power_in | single_source | |
| OEM-G-11 | Throttle motor phase 3 (PM3) | hbridge_out | — | — | — | single_source | |
| OEM-G-12 | Throttle motor phase 4 (PM4) | hbridge_out | — | — | — | single_source | |
| OEM-G-2 | Throttle motor power source 1 (IGM1) | power_in | FT450-A-A13 | +12V switched | power_in | single_source | |
| OEM-G-3 | Throttle motor power source 2 (IGM2) | power_in | FT450-A-A13 | +12V switched | power_in | single_source | |
| OEM-G-4 | Throttle motor phase 1 (PM1) | hbridge_out | — | — | — | single_source | |
| OEM-G-5 | Throttle motor phase 2 (PM2) | hbridge_out | — | — | — | single_source | |
| OEM-G-7 | Throttle motor ground 1 (PGM1) | ground | FT450-A-A7 | Power ground | ground | single_source | |
| OEM-G-8 | Throttle motor ground 2 (PGM2) | ground | FT450-A-A7 | Power ground | ground | single_source | |
| OEM-G-9 | Throttle motor common power phases 1&3 (COM1) | power_in | FT450-A-A13 | +12V switched | power_in | single_source |
Cut list
| Wire | From | To | Gauge (mm²) | Colour | Length | Signal | Ident |
|---|---|---|---|---|---|---|---|
| W1 | OEM-A-13 | SP-14V-1 | 0.85 | no route | ECM power source (IGP1) | — | |
| W2 | OEM-C-1 | SP-14V-1 | 0.85 | no route | ECM power source (IGP2) | — | |
| W3 | OEM-G-10 | SP-14V-1 | 0.85 | no route | Throttle motor common power phases 2&4 (COM2) | — | |
| W4 | OEM-G-2 | SP-14V-1 | 0.85 | no route | Throttle motor power source 1 (IGM1) | — | |
| W5 | OEM-G-3 | SP-14V-1 | 0.85 | no route | Throttle motor power source 2 (IGM2) | — | |
| W6 | OEM-G-9 | SP-14V-1 | 0.85 | no route | Throttle motor common power phases 1&3 (COM1) | — | |
| W7 | SP-14V-1 | FT450-A-A13 | 0.85 | no route | +12V switched | — | |
| W8 | OEM-A-12 | SP-GND-1 | 0.85 | no route | Power ground (PG1) | — | |
| W9 | OEM-A-25 | SP-GND-1 | 0.85 | no route | Power ground (PG2) | — | |
| W10 | OEM-G-7 | SP-GND-1 | 0.85 | no route | Throttle motor ground 1 (PGM1) | — | |
| W11 | OEM-G-8 | SP-GND-1 | 0.85 | no route | Throttle motor ground 2 (PGM2) | — | |
| W12 | SP-GND-1 | FT450-A-A7 | 0.85 | no route | Power ground | — | |
| W13 | OEM-A-26 | SP-0V-1 | 0.5 | no route | Logic ground (LG1) | — | |
| W14 | OEM-B-13 | SP-0V-1 | 0.5 | no route | Cylinder position sensor 2 return (CYP 2M) | — | |
| W15 | OEM-B-14 | SP-0V-1 | 0.5 | no route | Cylinder position sensor 1 return (CYP 1M) | — | |
| W16 | OEM-B-15 | SP-0V-1 | 0.5 | no route | Crank position sensor 2 return (CKP 2M) | — | |
| W17 | OEM-B-16 | SP-0V-1 | 0.5 | no route | Crank position sensor 1 return (CKP 1M) | — | |
| W18 | OEM-B-9 | SP-0V-1 | 0.5 | no route | Logic ground (LG2) | — | |
| W19 | OEM-D-11 | SP-0V-1 | 0.5 | no route | Sensor ground (SG2) | — | |
| W20 | OEM-F-15 | SP-0V-1 | 0.5 | no route | Accelerator pedal ground (SG3) | — | |
| W21 | OEM-F-2 | SP-0V-1 | 0.5 | no route | Sensor ground (SG1) | — | |
| W22 | SP-0V-1 | FT450-A-A12 | 0.5 | no route | Signal ground | — | |
| W23 | OEM-D-10 | SP-5V1-1 | 0.5 | no route | Sensor 5V supply (VCC2) | — | |
| W24 | OEM-F-1 | SP-5V1-1 | 0.5 | no route | Sensor 5V supply (VCC1) | — | |
| W25 | OEM-F-14 | SP-5V1-1 | 0.5 | no route | Accelerator pedal 5V supply (VCC3) | — | |
| W26 | SP-5V1-1 | FT450-A-A14 | 0.5 | no route | +5V sensor supply | — | |
| W27 | OEM-B-8 | FT450-A-A18 | 0.5 | no route | Crank position sensor 1 + (CKP 1P) | — | |
| W28 | SP-0V-1 | FT450-A-A18 | 0.5 | no route | RPM reference (crank -) | — | |
| W29 | OEM-B-7 | FT450-A-A19 | 0.5 | no route | Crank position sensor 2 + (CKP 2P) | — | |
| W30 | OEM-B-6 | FT450-A-A17 | 0.5 | no route | Cylinder position sensor 1 + (CYP 1P) | — | |
| W31 | OEM-A-11 | FT450-A-A8 | 0.5 | no route | Ignition coil 1 (IGN COIL1) | — | |
| W32 | OEM-A-24 | FT450-A-A9 | 0.5 | no route | Ignition coil 2 (IGN COIL2) | — | |
| W33 | OEM-B-12 | FT450-A-A10 | 0.5 | no route | Ignition coil 3 (IGN COIL3) | — | |
| W34 | OEM-B-11 | FT450-A-A11 | 0.5 | no route | Ignition coil 4 (IGN COIL4) | — | |
| W35 | OEM-A-1 | FT450-A-A1 | 0.5 | no route | Injector 1 (INJ1) | — | |
| W36 | OEM-A-2 | FT450-A-A2 | 0.5 | no route | Injector 2 (INJ2) | — | |
| W37 | OEM-A-3 | FT450-A-A1 | 0.5 | no route | Injector 3 (INJ3) | — | |
| W38 | OEM-A-14 | FT450-A-A2 | 0.5 | no route | Injector 4 (INJ4) | — | |
| W39 | OEM-A-15 | FT450-A-A1 | 0.5 | no route | Injector 5 (INJ5) | — | |
| W40 | OEM-A-16 | FT450-A-A2 | 0.5 | no route | Injector 6 (INJ6) | — | |
| W41 | OEM-A-5 | FT450-A-A6 | 0.5 | no route | Fuel pump relay (FLR1) | — | |
| W42 | OEM-F-19 | FT450-A-A3 | 0.5 | no route | VTEC solenoid front (VT SOLF) | — | |
| W43 | OEM-F-20 | FT450-A-A4 | 0.5 | no route | VTEC solenoid rear (VT SOLR) | — | |
| W44 | OEM-D-9 | FT450-A-A20 | 0.5 | no route | MAP sensor | — | |
| W45 | OEM-F-13 | FT450-A-A21 | 0.5 | no route | Accelerator pedal position 1 (AP1) | — | |
| W46 | OEM-F-12 | FT450-A-A22 | 0.5 | no route | Accelerator pedal position 2 (AP2) | — | |
| W47 | OEM-D-12 | FT450-A-A23 | 0.5 | no route | Throttle position sensor (TPS) | — | |
| W48 | OEM-D-7 | FT450-A-A24 | 0.5 | no route | Engine coolant temperature (ECT) | — | |
| W49 | OEM-F-4 | FT450-A-A5 | 0.5 | no route | Fuel pump relay 2 (FLR2) | — | |
| W50 | OEM-D-16 | FT450-A-A25 | 0.5 | no route | Front secondary O2 signal (O2S FS) | — | |
| W51 | OEM-D-8 | FT450-A-A26 | 0.5 | no route | Intake air temperature (IAT) | — |
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 (17)
| Severity | Code | Subject | Message |
|---|---|---|---|
| error | DBW_SENSOR_INPUT | tps | Only 0 throttle-position track(s) found. An electronic throttle needs two (main and sub) so the ECU can cross-check them. |
| error | NET_MERGED | FT450-A-A1 + OEM-A-1 + OEM-A-15 + OEM-A-3 | 3 different OEM functions share one net: OEM-A-1 Injector 1 (INJ1); OEM-A-15 Injector 5 (INJ5); OEM-A-3 Injector 3 (INJ3) |
| error | NET_MERGED | FT450-A-A2 + OEM-A-14 + OEM-A-16 + OEM-A-2 | 3 different OEM functions share one net: OEM-A-14 Injector 4 (INJ4); OEM-A-16 Injector 6 (INJ6); OEM-A-2 Injector 2 (INJ2) |
| error | REQUIRED_UNMAPPED | OEM-B-10 | Required OEM function "Ignition coil 5 (IGN COIL5)" (ignition_out) is not connected to the new ECU. |
| error | REQUIRED_UNMAPPED | OEM-B-2 | Required OEM function "Ignition coil 6 (IGN COIL6)" (ignition_out) is not connected to the new ECU. |
| error | REQUIRED_UNMAPPED | OEM-D-13 | Required OEM function "Knock sensor front (KSF)" (knock_in) is not connected to the new ECU. |
| error | REQUIRED_UNMAPPED | OEM-D-2 | Required OEM function "Knock sensor rear (KSR)" (knock_in) is not connected to the new ECU. |
| error | REQUIRED_UNMAPPED | OEM-G-11 | Required OEM function "Throttle motor phase 3 (PM3)" (hbridge_out) is not connected to the new ECU. |
| error | REQUIRED_UNMAPPED | OEM-G-12 | Required OEM function "Throttle motor phase 4 (PM4)" (hbridge_out) is not connected to the new ECU. |
| error | REQUIRED_UNMAPPED | OEM-G-4 | Required OEM function "Throttle motor phase 1 (PM1)" (hbridge_out) is not connected to the new ECU. |
| error | REQUIRED_UNMAPPED | OEM-G-5 | Required OEM function "Throttle motor phase 2 (PM2)" (hbridge_out) is not connected to the new ECU. |
| warn | DBW_SHARED_5V | FT450-A-A14 + OEM-D-10 + OEM-F-1 + OEM-F-14 + SP-5V1-1 | These 5 V supplies are separate in the stock car (OEM-D-10 [tps], OEM-F-14 [pedal]) and here share one ECU 5 V (FT450-A-A14). On a drive-by-wire car the OEM splits them so one short or fault can't corrupt both throttle/pedal tracks at once. FT450 has 1 5 V sensor supply pin(s). All are in use, so decide: accept the shared supply (and rely on the ECU's DBW fault checks), or add a separate regulated 5 V for the sub tracks. |
| warn | LOAD_UNKNOWN | FT450-A-A5 | FT450-A-A5 "Aux 3" drives OEM-F-4 Fuel pump relay 2 (FLR2) (load 0.2 A) but its current rating is unknown. Check the ECU manual. |
| warn | LOAD_UNKNOWN | FT450-A-A6 | FT450-A-A6 "Aux 4 (fuel pump / relays)" drives OEM-A-5 Fuel pump relay (FLR1) (load 0.2 A) but its current rating is unknown. Check the ECU manual. |
| warn | SUPPLY_GROUP | FT450-A-A14 + OEM-D-10 + OEM-F-1 + OEM-F-14 + SP-5V1-1 | Supplies meant to stay independent share one net: OEM-D-10 [tps], OEM-F-14 [pedal]. The new ECU has no free 5 V reference, so they share one: normal on a standalone, but a short on any of these sensors drops them all. |
| info | NET_FAMILY | OEM-B-13 ↔ FT450-A-A18 | OEM-B-13 "Cylinder position sensor 2 return (CYP 2M)" [sensor_ground] is wired to FT450-A-A18 "RPM reference (crank -)" [trigger_in]. Trigger return tied to sensor/trigger ground: correct for single-ended trigger inputs. |
| info | UNMAPPED | OEM | 26 optional OEM pins are not mapped: OEM-A-10 Rear secondary O2 heater (RSO2SHTC); OEM-A-17 EVAP bypass solenoid (2WBS); OEM-A-20 IAB control solenoid (IABCS); OEM-A-21 EVAP purge control solenoid (PCS); OEM-A-22 Front primary O2 heater (FPO2SHTC); OEM-A-23 Rear primary O2 heater (RPO2SHTC); OEM-A-4 EVAP canister vent shut valve (VSV); OEM-A-6 EGR control solenoid (ESOL); OEM-A-7 Malfunction indicator lamp (MIL); OEM-A-8 A/C clutch relay (ACC); OEM-A-9 Front secondary O2 heater (FSO2SHTC); OEM-B-1 VTEC pressure switch front (VTP SWF); OEM-B-3 VTEC pressure switch rear (VTP SWR); OEM-B-4 Neutral switch (NT SW, M/T); OEM-B-5 Cylinder position sensor 2 + (CYP 2P); OEM-C-4 Clutch switch (MTCLS, M/T); OEM-C-6 Starter switch (STS); OEM-C-7 Vehicle speed sensor (VSS); OEM-C-8 Engine speed pulse (NEP); OEM-D-17 Rear secondary O2 signal (O2S RS); OEM-D-18 Front primary O2 signal (O2S FP); OEM-D-19 Rear primary O2 signal (O2S RP); OEM-D-20 EGR valve lift sensor (EGRL); OEM-D-4 K-line diagnostics; OEM-F-16 Brake switch 1 (BKSW1); OEM-F-6 Brake switch 2 (BKSW2) |
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: needs add-on. Resolve these before building: - No drive-by-wire; needs a cable-throttle conversion or an external DBW controller - Trigger pattern for Honda C32B not found in the ECU's docs (No NSX C32B CAS pattern in the trigger list.) - No knock input; the stock knock sensor would be unused - Only 4 ignition outputs for 6 cylinders: wasted spark (pair coils per firing order) - This car has Honda Type 1A (1997+) immobilizer; needs a delete/bypass Auto-mapped by auto_map() from the library pin data on 2026-10-11. Review every wire against both manuals before building. Open items: - OEM-D 13: Knock sensor front (KSF): no free knock input on FuelTech FT450 - OEM-D 2: Knock sensor rear (KSR): no free knock input on FuelTech FT450 - OEM-B 10: Ignition coil 5 (IGN COIL5): no free ignition output on FuelTech FT450 - OEM-B 2: Ignition coil 6 (IGN COIL6): no free ignition output on FuelTech FT450 - OEM-G 4: Throttle motor phase 1 (PM1): no +/− pair in the pinout (multi-phase or half-documented motor); wire by hand - OEM-G 5: Throttle motor phase 2 (PM2): no +/− pair in the pinout (multi-phase or half-documented motor); wire by hand - OEM-G 11: Throttle motor phase 3 (PM3): no +/− pair in the pinout (multi-phase or half-documented motor); wire by hand - OEM-G 12: Throttle motor phase 4 (PM4): no +/− pair in the pinout (multi-phase or half-documented motor); wire by hand Not wired: - OEM-D 1: Backup power (VBU): FuelTech FT450 has no battery-constant input; not needed - OEM-B 5: Cylinder position sensor 2 + (CYP 2P): no free cam_vr/cam_hall/frequency_in input on FuelTech FT450 - OEM-A 8: A/C clutch relay (ACC): no free relay_control/low_side/heater_low_side/ls_hs/injector rated ≥ 0.2 A on FuelTech FT450 - OEM-A 10: Rear secondary O2 heater (RSO2SHTC): no free heater_low_side/low_side/relay_control/ls_hs/injector on FuelTech FT450 - OEM-A 22: Front primary O2 heater (FPO2SHTC): no free heater_low_side/low_side/relay_control/ls_hs/injector on FuelTech FT450 - OEM-A 23: Rear primary O2 heater (RPO2SHTC): no free heater_low_side/low_side/relay_control/ls_hs/injector on FuelTech FT450 - OEM-A 9: Front secondary O2 heater (FSO2SHTC): no free heater_low_side/low_side/relay_control/ls_hs/injector on FuelTech FT450 - OEM-A 17: EVAP bypass solenoid (2WBS): no free low_side/relay_control/heater_low_side/ls_hs/injector on FuelTech FT450 - OEM-A 20: IAB control solenoid (IABCS): no free low_side/relay_control/heater_low_side/ls_hs/injector on FuelTech FT450 - OEM-A 21: EVAP purge control solenoid (PCS): no free low_side/relay_control/heater_low_side/ls_hs/injector on FuelTech FT450 - OEM-A 4: EVAP canister vent shut valve (VSV): no free low_side/relay_control/heater_low_side/ls_hs/injector on FuelTech FT450 - OEM-A 6: EGR control solenoid (ESOL): no free low_side/relay_control/heater_low_side/ls_hs/injector on FuelTech FT450 - OEM-A 7: Malfunction indicator lamp (MIL): no free low_side/relay_control/heater_low_side/ls_hs/injector on FuelTech FT450 - OEM-C 8: Engine speed pulse (NEP): no free tacho/frequency_out/low_side/ls_hs on FuelTech FT450 - OEM-D 17: Rear secondary O2 signal (O2S RS): no free o2_narrowband/analog_0_5 on FuelTech FT450 - OEM-D 18: Front primary O2 signal (O2S FP): no free o2_narrowband/analog_0_5 on FuelTech FT450 - OEM-D 19: Rear primary O2 signal (O2S RP): no free o2_narrowband/analog_0_5 on FuelTech FT450 - OEM-D 20: EGR valve lift sensor (EGRL): no free analog_0_5 on FuelTech FT450 - OEM-C 7: Vehicle speed sensor (VSS): no free frequency_in/switch_in on FuelTech FT450 - OEM-F 16: Brake switch 1 (BKSW1): no free switch_in/frequency_in/analog_0_5 on FuelTech FT450 - OEM-F 6: Brake switch 2 (BKSW2): no free switch_in/frequency_in/analog_0_5 on FuelTech FT450 - OEM-B 1: VTEC pressure switch front (VTP SWF): no free switch_in/frequency_in/analog_0_5 on FuelTech FT450 - OEM-B 3: VTEC pressure switch rear (VTP SWR): no free switch_in/frequency_in/analog_0_5 on FuelTech FT450 - OEM-B 4: Neutral switch (NT SW, M/T): no free switch_in/frequency_in/analog_0_5 on FuelTech FT450 - OEM-C 4: Clutch switch (MTCLS, M/T): no free switch_in/frequency_in/analog_0_5 on FuelTech FT450 - OEM-C 6: Starter switch (STS): no free switch_in/frequency_in/analog_0_5 on FuelTech FT450 - OEM-D 4: K-line diagnostics: no free k_line on FuelTech FT450
Sources
| Reliability | Kind | Title | URL | Archive | Captured | SHA-256 |
|---|---|---|---|---|---|---|
| 4 | vendor_doc | 1997-2005 Acura NSX Service Manual §11 (PGM-FI), ECM terminal arrangement | https://www.manualslib.com/manual/1540331/Acura-Nsx-1997.html | — | — | — |
| 4 | vendor_doc | FuelTech FT450/FT550 ready harness manual (4 & 6 cylinder) — FT450 Connector A pinout | http://ftmanager.fueltech.com.br/downloads/manual/Portugues/Chicote_pronto_FT450-FT550.pdf | — | — | — |