Honda NSX NA2 1997-2005 (C32B) → AMP EFI MS3Pro Mini (auto)
Honda NSX NA2 1997-2005 (C32B) — AMP EFI — MS3Pro Mini
⚠ 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 | 9: read the Findings page before cutting any wire |
| Size of the job | 55 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 | MS3PROMINI-A-1 | 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 | MS3PROMINI-A-22 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W13 | SP-GND-1 | MS3PROMINI-A-23 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W14 | OEM-A-26 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W15 | OEM-B-13 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W16 | OEM-B-14 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W17 | OEM-B-15 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W18 | OEM-B-16 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W19 | OEM-B-9 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W20 | OEM-D-11 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W21 | OEM-F-15 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W22 | OEM-F-2 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W23 | SP-0V-1 | MS3PROMINI-A-21 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W24 | OEM-D-10 | SP-5V1-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W25 | OEM-F-1 | SP-5V1-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W26 | OEM-F-14 | SP-5V1-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W27 | SP-5V1-1 | MS3PROMINI-A-2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W28 | OEM-B-8 | MS3PROMINI-A-30 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W29 | OEM-B-7 | MS3PROMINI-A-31 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W30 | OEM-B-6 | MS3PROMINI-A-32 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W31 | OEM-B-5 | MS3PROMINI-A-33 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W32 | OEM-A-11 | MS3PROMINI-A-17 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W33 | OEM-A-24 | MS3PROMINI-A-18 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W34 | OEM-B-12 | MS3PROMINI-A-19 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W35 | OEM-B-11 | MS3PROMINI-A-20 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W36 | OEM-A-1 | MS3PROMINI-A-10 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W37 | OEM-A-2 | MS3PROMINI-A-11 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W38 | OEM-A-3 | MS3PROMINI-A-12 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W39 | OEM-A-14 | MS3PROMINI-A-5 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W40 | OEM-A-15 | MS3PROMINI-A-6 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W41 | OEM-A-16 | MS3PROMINI-A-7 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W42 | OEM-A-5 | MS3PROMINI-A-4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W43 | OEM-F-19 | MS3PROMINI-A-3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W44 | OEM-F-20 | MS3PROMINI-A-8 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W45 | OEM-D-9 | MS3PROMINI-A-13 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W46 | OEM-F-13 | MS3PROMINI-A-28 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W47 | OEM-F-12 | MS3PROMINI-A-14 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W48 | OEM-D-12 | MS3PROMINI-A-15 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W49 | OEM-D-7 | MS3PROMINI-A-26 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W50 | OEM-F-4 | MS3PROMINI-A-9 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W51 | OEM-D-16 | MS3PROMINI-A-16 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W52 | OEM-D-8 | MS3PROMINI-A-27 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W53 | OEM-C-7 | MS3PROMINI-A-34 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W54 | OEM-F-16 | MS3PROMINI-A-29 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W55 | OEM-F-6 | MS3PROMINI-A-35 | 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 | MS3PROMINI-A-1 | MS3PROMINI-A-21 | open (OL) | +12 V supply must not touch sensor ground | |
| 2 | MS3PROMINI-A-1 | MS3PROMINI-A-2 | open (OL) | +12 V supply must not touch 5 V sensor reference | |
| 3 | MS3PROMINI-A-21 | MS3PROMINI-A-2 | open (OL) | sensor ground must not touch 5 V sensor reference | |
| 4 | MS3PROMINI-A-22 | MS3PROMINI-A-1 | open (OL) | power ground must not touch +12 V supply | |
| 5 | MS3PROMINI-A-22 | MS3PROMINI-A-2 | 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
MS3PROMINI-A
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 12V+ switched power in | — | W7 | — | 0.85 | SP-14V-1 | — | — | — |
| 10 | Injector out F | — | W36 | — | 0.5 | OEM-A-1 | — | — | — |
| 11 | Injector out G | — | W37 | — | 0.5 | OEM-A-2 | — | — | — |
| 12 | Injector out H | — | W38 | — | 0.5 | OEM-A-3 | — | — | — |
| 13 | Analog in 1 | — | W45 | — | 0.5 | OEM-D-9 | — | — | — |
| 14 | Analog in 2 | — | W47 | — | 0.5 | OEM-F-12 | — | — | — |
| 15 | Analog in 3 | — | W48 | — | 0.5 | OEM-D-12 | — | — | — |
| 16 | Analog in 4 | — | W51 | — | 0.5 | OEM-D-16 | — | — | — |
| 17 | Spark out A | — | W32 | — | 0.5 | OEM-A-11 | — | — | — |
| 18 | Spark out B | — | W33 | — | 0.5 | OEM-A-24 | — | — | — |
| 19 | Spark out C | — | W34 | — | 0.5 | OEM-B-12 | — | — | — |
| 2 | +5V VREF out | — | W27 | — | 0.5 | SP-5V1-1 | — | — | — |
| 20 | Spark out D | — | W35 | — | 0.5 | OEM-B-11 | — | — | — |
| 21 | Sensor ground | — | W23 | — | 0.5 | SP-0V-1 | — | — | — |
| 22 | Power ground | — | W12 | — | 0.85 | SP-GND-1 | — | — | — |
| 23 | Power ground | — | W13 | — | 0.85 | SP-GND-1 | — | — | — |
| 24 | CAN Low | — | — | — | — | — | — | — | — |
| 25 | CAN High | — | — | — | — | — | — | — | — |
| 26 | CLT in | — | W49 | — | 0.5 | OEM-D-7 | — | — | — |
| 27 | IAT in | — | W52 | — | 0.5 | OEM-D-8 | — | — | — |
| 28 | TPS in | — | W46 | — | 0.5 | OEM-F-13 | — | — | — |
| 29 | Digital switched in 1 / Flex fuel | — | W54 | — | 0.5 | OEM-F-16 | — | — | — |
| 3 | PWM out 1 / Idle | — | W43 | — | 0.5 | OEM-F-19 | — | — | — |
| 30 | CKP+ | — | W28 | — | 0.5 | OEM-B-8 | — | — | — |
| 31 | CKP- | — | W29 | — | 0.5 | OEM-B-7 | — | — | — |
| 32 | CMP+ | — | W30 | — | 0.5 | OEM-B-6 | — | — | — |
| 33 | CMP- | — | W31 | — | 0.5 | OEM-B-5 | — | — | — |
| 34 | Digital frequency in 1 (Hall) | — | W53 | — | 0.5 | OEM-C-7 | — | — | — |
| 35 | Digital frequency in 2 (Hall) | — | W55 | — | 0.5 | OEM-F-6 | — | — | — |
| 4 | Fuel pump out | — | W42 | — | 0.5 | OEM-A-5 | — | — | — |
| 5 | Injector out A | — | W39 | — | 0.5 | OEM-A-14 | — | — | — |
| 6 | Injector out B | — | W40 | — | 0.5 | OEM-A-15 | — | — | — |
| 7 | Injector out C | — | W41 | — | 0.5 | OEM-A-16 | — | — | — |
| 8 | Injector out D | — | W44 | — | 0.5 | OEM-F-20 | — | — | — |
| 9 | Injector out E | — | W50 | — | 0.5 | OEM-F-4 | — | — | — |
OEM-A
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Injector 1 (INJ1) | — | W36 | — | 0.5 | MS3PROMINI-A-10 | — | — | — |
| 10 | Rear secondary O2 heater (RSO2SHTC) | — | — | — | — | — | — | — | — |
| 11 | Ignition coil 1 (IGN COIL1) | — | W32 | — | 0.5 | MS3PROMINI-A-17 | — | — | — |
| 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) | — | W39 | — | 0.5 | MS3PROMINI-A-5 | — | — | — |
| 15 | Injector 5 (INJ5) | — | W40 | — | 0.5 | MS3PROMINI-A-6 | — | — | — |
| 16 | Injector 6 (INJ6) | — | W41 | — | 0.5 | MS3PROMINI-A-7 | — | — | — |
| 17 | EVAP bypass solenoid (2WBS) | — | — | — | — | — | — | — | — |
| 2 | Injector 2 (INJ2) | — | W37 | — | 0.5 | MS3PROMINI-A-11 | — | — | — |
| 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) | — | W33 | — | 0.5 | MS3PROMINI-A-18 | — | — | — |
| 25 | Power ground (PG2) | — | W9 | — | 0.85 | SP-GND-1 | — | — | — |
| 26 | Logic ground (LG1) | — | W14 | — | 0.5 | SP-0V-1 | — | — | — |
| 3 | Injector 3 (INJ3) | — | W38 | — | 0.5 | MS3PROMINI-A-12 | — | — | — |
| 4 | EVAP canister vent shut valve (VSV) | — | — | — | — | — | — | — | — |
| 5 | Fuel pump relay (FLR1) | — | W42 | — | 0.5 | MS3PROMINI-A-4 | — | — | — |
| 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) | — | W35 | — | 0.5 | MS3PROMINI-A-20 | — | — | — |
| 12 | Ignition coil 3 (IGN COIL3) | — | W34 | — | 0.5 | MS3PROMINI-A-19 | — | — | — |
| 13 | Cylinder position sensor 2 return (CYP 2M) | — | W15 | — | 0.5 | SP-0V-1 | — | — | — |
| 14 | Cylinder position sensor 1 return (CYP 1M) | — | W16 | — | 0.5 | SP-0V-1 | — | — | — |
| 15 | Crank position sensor 2 return (CKP 2M) | — | W17 | — | 0.5 | SP-0V-1 | — | — | — |
| 16 | Crank position sensor 1 return (CKP 1M) | — | W18 | — | 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) | — | W31 | — | 0.5 | MS3PROMINI-A-33 | — | — | — |
| 6 | Cylinder position sensor 1 + (CYP 1P) | — | W30 | — | 0.5 | MS3PROMINI-A-32 | — | — | — |
| 7 | Crank position sensor 2 + (CKP 2P) | — | W29 | — | 0.5 | MS3PROMINI-A-31 | — | — | — |
| 8 | Crank position sensor 1 + (CKP 1P) | — | W28 | — | 0.5 | MS3PROMINI-A-30 | — | — | — |
| 9 | Logic ground (LG2) | — | W19 | — | 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) | — | W53 | — | 0.5 | MS3PROMINI-A-34 | — | — | — |
| 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) | — | W24 | — | 0.5 | SP-5V1-1 | — | — | — |
| 11 | Sensor ground (SG2) | — | W20 | — | 0.5 | SP-0V-1 | — | — | — |
| 12 | Throttle position sensor (TPS) | — | W48 | — | 0.5 | MS3PROMINI-A-15 | — | — | — |
| 13 | Knock sensor front (KSF) | — | — | — | — | — | — | — | — |
| 16 | Front secondary O2 signal (O2S FS) | — | W51 | — | 0.5 | MS3PROMINI-A-16 | — | — | — |
| 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) | — | W49 | — | 0.5 | MS3PROMINI-A-26 | — | — | — |
| 8 | Intake air temperature (IAT) | — | W52 | — | 0.5 | MS3PROMINI-A-27 | — | — | — |
| 9 | MAP sensor | — | W45 | — | 0.5 | MS3PROMINI-A-13 | — | — | — |
OEM-F
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Sensor 5V supply (VCC1) | — | W25 | — | 0.5 | SP-5V1-1 | — | — | — |
| 12 | Accelerator pedal position 2 (AP2) | — | W47 | — | 0.5 | MS3PROMINI-A-14 | — | — | — |
| 13 | Accelerator pedal position 1 (AP1) | — | W46 | — | 0.5 | MS3PROMINI-A-28 | — | — | — |
| 14 | Accelerator pedal 5V supply (VCC3) | — | W26 | — | 0.5 | SP-5V1-1 | — | — | — |
| 15 | Accelerator pedal ground (SG3) | — | W21 | — | 0.5 | SP-0V-1 | — | — | — |
| 16 | Brake switch 1 (BKSW1) | — | W54 | — | 0.5 | MS3PROMINI-A-29 | — | — | — |
| 19 | VTEC solenoid front (VT SOLF) | — | W43 | — | 0.5 | MS3PROMINI-A-3 | — | — | — |
| 2 | Sensor ground (SG1) | — | W22 | — | 0.5 | SP-0V-1 | — | — | — |
| 20 | VTEC solenoid rear (VT SOLR) | — | W44 | — | 0.5 | MS3PROMINI-A-8 | — | — | — |
| 4 | Fuel pump relay 2 (FLR2) | — | W50 | — | 0.5 | MS3PROMINI-A-9 | — | — | — |
| 6 | Brake switch 2 (BKSW2) | — | W55 | — | 0.5 | MS3PROMINI-A-35 | — | — | — |
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 | — | — | W14 | — | 0.5 | OEM-A-26 | — | — | — |
| 1 | — | — | W15 | — | 0.5 | OEM-B-13 | — | — | — |
| 1 | — | — | W16 | — | 0.5 | OEM-B-14 | — | — | — |
| 1 | — | — | W17 | — | 0.5 | OEM-B-15 | — | — | — |
| 1 | — | — | W18 | — | 0.5 | OEM-B-16 | — | — | — |
| 1 | — | — | W19 | — | 0.5 | OEM-B-9 | — | — | — |
| 1 | — | — | W20 | — | 0.5 | OEM-D-11 | — | — | — |
| 1 | — | — | W21 | — | 0.5 | OEM-F-15 | — | — | — |
| 1 | — | — | W22 | — | 0.5 | OEM-F-2 | — | — | — |
| 1 | — | — | W23 | — | 0.5 | MS3PROMINI-A-21 | — | — | — |
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 | MS3PROMINI-A-1 | — | — | — |
SP-5V1
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W24 | — | 0.5 | OEM-D-10 | — | — | — |
| 1 | — | — | W25 | — | 0.5 | OEM-F-1 | — | — | — |
| 1 | — | — | W26 | — | 0.5 | OEM-F-14 | — | — | — |
| 1 | — | — | W27 | — | 0.5 | MS3PROMINI-A-2 | — | — | — |
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 | MS3PROMINI-A-22 | — | — | — |
| 1 | — | — | W13 | — | 0.85 | MS3PROMINI-A-23 | — | — | — |
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 | MS3PROMINI-A-10 | Injector out F | 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 | MS3PROMINI-A-17 | Spark out A | ignition_out | single_source | |
| OEM-A-12 | Power ground (PG1) | ground | MS3PROMINI-A-22 + MS3PROMINI-A-23 | Power ground + Power ground | ground | single_source | |
| OEM-A-13 | ECM power source (IGP1) | power_in | MS3PROMINI-A-1 | 12V+ switched power in | power_in | single_source | |
| OEM-A-14 | Injector 4 (INJ4) | injector_out | MS3PROMINI-A-5 | Injector out A | injector_out | single_source | |
| OEM-A-15 | Injector 5 (INJ5) | injector_out | MS3PROMINI-A-6 | Injector out B | injector_out | single_source | |
| OEM-A-16 | Injector 6 (INJ6) | injector_out | MS3PROMINI-A-7 | Injector out C | injector_out | single_source | |
| OEM-A-17 | EVAP bypass solenoid (2WBS) | low_side_out | — | — | — | single_source | |
| OEM-A-2 | Injector 2 (INJ2) | injector_out | MS3PROMINI-A-11 | Injector out G | 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 | MS3PROMINI-A-18 | Spark out B | ignition_out | single_source | |
| OEM-A-25 | Power ground (PG2) | ground | MS3PROMINI-A-22 + MS3PROMINI-A-23 | Power ground + Power ground | ground | single_source | |
| OEM-A-26 | Logic ground (LG1) | sensor_ground | MS3PROMINI-A-21 | Sensor ground | sensor_ground | single_source | |
| OEM-A-3 | Injector 3 (INJ3) | injector_out | MS3PROMINI-A-12 | Injector out H | 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 | MS3PROMINI-A-4 | Fuel pump out | 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 | MS3PROMINI-A-20 | Spark out D | ignition_out | single_source | |
| OEM-B-12 | Ignition coil 3 (IGN COIL3) | ignition_out | MS3PROMINI-A-19 | Spark out C | ignition_out | single_source | |
| OEM-B-13 | Cylinder position sensor 2 return (CYP 2M) | sensor_ground | MS3PROMINI-A-21 | Sensor ground | sensor_ground | single_source | |
| OEM-B-14 | Cylinder position sensor 1 return (CYP 1M) | sensor_ground | MS3PROMINI-A-21 | Sensor ground | sensor_ground | single_source | |
| OEM-B-15 | Crank position sensor 2 return (CKP 2M) | sensor_ground | MS3PROMINI-A-21 | Sensor ground | sensor_ground | single_source | |
| OEM-B-16 | Crank position sensor 1 return (CKP 1M) | sensor_ground | MS3PROMINI-A-21 | Sensor ground | sensor_ground | 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 | MS3PROMINI-A-33 | CMP- | trigger_in | single_source | |
| OEM-B-6 | Cylinder position sensor 1 + (CYP 1P) | trigger_in | MS3PROMINI-A-32 | CMP+ | trigger_in | single_source | |
| OEM-B-7 | Crank position sensor 2 + (CKP 2P) | trigger_in | MS3PROMINI-A-31 | CKP- | trigger_in | single_source | |
| OEM-B-8 | Crank position sensor 1 + (CKP 1P) | trigger_in | MS3PROMINI-A-30 | CKP+ | trigger_in | single_source | |
| OEM-B-9 | Logic ground (LG2) | sensor_ground | MS3PROMINI-A-21 | Sensor ground | sensor_ground | single_source | |
| OEM-C-1 | ECM power source (IGP2) | power_in | MS3PROMINI-A-1 | 12V+ switched power in | 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 | MS3PROMINI-A-34 | Digital frequency in 1 (Hall) | 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 | MS3PROMINI-A-2 | +5V VREF out | vref | single_source | |
| OEM-D-11 | Sensor ground (SG2) | sensor_ground | MS3PROMINI-A-21 | Sensor ground | sensor_ground | single_source | |
| OEM-D-12 | Throttle position sensor (TPS) | analog_in | MS3PROMINI-A-15 | Analog in 3 | 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 | MS3PROMINI-A-16 | Analog in 4 | 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 | MS3PROMINI-A-26 | CLT in | temp_in | single_source | |
| OEM-D-8 | Intake air temperature (IAT) | temp_in | MS3PROMINI-A-27 | IAT in | temp_in | single_source | |
| OEM-D-9 | MAP sensor | analog_in | MS3PROMINI-A-13 | Analog in 1 | analog_in | single_source | |
| OEM-F-1 | Sensor 5V supply (VCC1) | vref | MS3PROMINI-A-2 | +5V VREF out | vref | single_source | |
| OEM-F-12 | Accelerator pedal position 2 (AP2) | analog_in | MS3PROMINI-A-14 | Analog in 2 | analog_in | single_source | |
| OEM-F-13 | Accelerator pedal position 1 (AP1) | analog_in | MS3PROMINI-A-28 | TPS in | analog_in | single_source | |
| OEM-F-14 | Accelerator pedal 5V supply (VCC3) | vref | MS3PROMINI-A-2 | +5V VREF out | vref | single_source | |
| OEM-F-15 | Accelerator pedal ground (SG3) | sensor_ground | MS3PROMINI-A-21 | Sensor ground | sensor_ground | single_source | |
| OEM-F-16 | Brake switch 1 (BKSW1) | digital_in | MS3PROMINI-A-29 | Digital switched in 1 / Flex fuel | digital_in | single_source | |
| OEM-F-19 | VTEC solenoid front (VT SOLF) | low_side_out | MS3PROMINI-A-3 | PWM out 1 / Idle | low_side_out | single_source | |
| OEM-F-2 | Sensor ground (SG1) | sensor_ground | MS3PROMINI-A-21 | Sensor ground | sensor_ground | single_source | |
| OEM-F-20 | VTEC solenoid rear (VT SOLR) | low_side_out | MS3PROMINI-A-8 | Injector out D | injector_out | single_source | |
| OEM-F-4 | Fuel pump relay 2 (FLR2) | low_side_out | MS3PROMINI-A-9 | Injector out E | injector_out | single_source | |
| OEM-F-6 | Brake switch 2 (BKSW2) | digital_in | MS3PROMINI-A-35 | Digital frequency in 2 (Hall) | digital_in | single_source | |
| OEM-G-10 | Throttle motor common power phases 2&4 (COM2) | power_in | MS3PROMINI-A-1 | 12V+ switched power in | 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 | MS3PROMINI-A-1 | 12V+ switched power in | power_in | single_source | |
| OEM-G-3 | Throttle motor power source 2 (IGM2) | power_in | MS3PROMINI-A-1 | 12V+ switched power in | 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 | MS3PROMINI-A-22 + MS3PROMINI-A-23 | Power ground + Power ground | ground | single_source | |
| OEM-G-8 | Throttle motor ground 2 (PGM2) | ground | MS3PROMINI-A-22 + MS3PROMINI-A-23 | Power ground + Power ground | ground | single_source | |
| OEM-G-9 | Throttle motor common power phases 1&3 (COM1) | power_in | MS3PROMINI-A-1 | 12V+ switched power in | 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 | MS3PROMINI-A-1 | 0.85 | no route | 12V+ switched power in | — | |
| 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 | MS3PROMINI-A-22 | 0.85 | no route | Power ground | — | |
| W13 | SP-GND-1 | MS3PROMINI-A-23 | 0.85 | no route | Power ground | — | |
| W14 | OEM-A-26 | SP-0V-1 | 0.5 | no route | Logic ground (LG1) | — | |
| W15 | OEM-B-13 | SP-0V-1 | 0.5 | no route | Cylinder position sensor 2 return (CYP 2M) | — | |
| W16 | OEM-B-14 | SP-0V-1 | 0.5 | no route | Cylinder position sensor 1 return (CYP 1M) | — | |
| W17 | OEM-B-15 | SP-0V-1 | 0.5 | no route | Crank position sensor 2 return (CKP 2M) | — | |
| W18 | OEM-B-16 | SP-0V-1 | 0.5 | no route | Crank position sensor 1 return (CKP 1M) | — | |
| W19 | OEM-B-9 | SP-0V-1 | 0.5 | no route | Logic ground (LG2) | — | |
| W20 | OEM-D-11 | SP-0V-1 | 0.5 | no route | Sensor ground (SG2) | — | |
| W21 | OEM-F-15 | SP-0V-1 | 0.5 | no route | Accelerator pedal ground (SG3) | — | |
| W22 | OEM-F-2 | SP-0V-1 | 0.5 | no route | Sensor ground (SG1) | — | |
| W23 | SP-0V-1 | MS3PROMINI-A-21 | 0.5 | no route | Sensor ground | — | |
| W24 | OEM-D-10 | SP-5V1-1 | 0.5 | no route | Sensor 5V supply (VCC2) | — | |
| W25 | OEM-F-1 | SP-5V1-1 | 0.5 | no route | Sensor 5V supply (VCC1) | — | |
| W26 | OEM-F-14 | SP-5V1-1 | 0.5 | no route | Accelerator pedal 5V supply (VCC3) | — | |
| W27 | SP-5V1-1 | MS3PROMINI-A-2 | 0.5 | no route | +5V VREF out | — | |
| W28 | OEM-B-8 | MS3PROMINI-A-30 | 0.5 | no route | Crank position sensor 1 + (CKP 1P) | — | |
| W29 | OEM-B-7 | MS3PROMINI-A-31 | 0.5 | no route | Crank position sensor 2 + (CKP 2P) | — | |
| W30 | OEM-B-6 | MS3PROMINI-A-32 | 0.5 | no route | Cylinder position sensor 1 + (CYP 1P) | — | |
| W31 | OEM-B-5 | MS3PROMINI-A-33 | 0.5 | no route | Cylinder position sensor 2 + (CYP 2P) | — | |
| W32 | OEM-A-11 | MS3PROMINI-A-17 | 0.5 | no route | Ignition coil 1 (IGN COIL1) | — | |
| W33 | OEM-A-24 | MS3PROMINI-A-18 | 0.5 | no route | Ignition coil 2 (IGN COIL2) | — | |
| W34 | OEM-B-12 | MS3PROMINI-A-19 | 0.5 | no route | Ignition coil 3 (IGN COIL3) | — | |
| W35 | OEM-B-11 | MS3PROMINI-A-20 | 0.5 | no route | Ignition coil 4 (IGN COIL4) | — | |
| W36 | OEM-A-1 | MS3PROMINI-A-10 | 0.5 | no route | Injector 1 (INJ1) | — | |
| W37 | OEM-A-2 | MS3PROMINI-A-11 | 0.5 | no route | Injector 2 (INJ2) | — | |
| W38 | OEM-A-3 | MS3PROMINI-A-12 | 0.5 | no route | Injector 3 (INJ3) | — | |
| W39 | OEM-A-14 | MS3PROMINI-A-5 | 0.5 | no route | Injector 4 (INJ4) | — | |
| W40 | OEM-A-15 | MS3PROMINI-A-6 | 0.5 | no route | Injector 5 (INJ5) | — | |
| W41 | OEM-A-16 | MS3PROMINI-A-7 | 0.5 | no route | Injector 6 (INJ6) | — | |
| W42 | OEM-A-5 | MS3PROMINI-A-4 | 0.5 | no route | Fuel pump relay (FLR1) | — | |
| W43 | OEM-F-19 | MS3PROMINI-A-3 | 0.5 | no route | VTEC solenoid front (VT SOLF) | — | |
| W44 | OEM-F-20 | MS3PROMINI-A-8 | 0.5 | no route | VTEC solenoid rear (VT SOLR) | — | |
| W45 | OEM-D-9 | MS3PROMINI-A-13 | 0.5 | no route | MAP sensor | — | |
| W46 | OEM-F-13 | MS3PROMINI-A-28 | 0.5 | no route | Accelerator pedal position 1 (AP1) | — | |
| W47 | OEM-F-12 | MS3PROMINI-A-14 | 0.5 | no route | Accelerator pedal position 2 (AP2) | — | |
| W48 | OEM-D-12 | MS3PROMINI-A-15 | 0.5 | no route | Throttle position sensor (TPS) | — | |
| W49 | OEM-D-7 | MS3PROMINI-A-26 | 0.5 | no route | Engine coolant temperature (ECT) | — | |
| W50 | OEM-F-4 | MS3PROMINI-A-9 | 0.5 | no route | Fuel pump relay 2 (FLR2) | — | |
| W51 | OEM-D-16 | MS3PROMINI-A-16 | 0.5 | no route | Front secondary O2 signal (O2S FS) | — | |
| W52 | OEM-D-8 | MS3PROMINI-A-27 | 0.5 | no route | Intake air temperature (IAT) | — | |
| W53 | OEM-C-7 | MS3PROMINI-A-34 | 0.5 | no route | Vehicle speed sensor (VSS) | — | |
| W54 | OEM-F-16 | MS3PROMINI-A-29 | 0.5 | no route | Brake switch 1 (BKSW1) | — | |
| W55 | OEM-F-6 | MS3PROMINI-A-35 | 0.5 | no route | Brake switch 2 (BKSW2) | — |
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 (14)
| 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 | 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 | MS3PROMINI-A-2 + 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 (MS3PROMINI-A-2). On a drive-by-wire car the OEM splits them so one short or fault can't corrupt both throttle/pedal tracks at once. MS3Pro Mini 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 | SUPPLY_GROUP | MS3PROMINI-A-2 + 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-F-20 ↔ MS3PROMINI-A-8 | OEM-F-20 "VTEC solenoid rear (VT SOLR)" [low_side_out] is wired to MS3PROMINI-A-8 "Injector out D" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | NET_FAMILY | OEM-F-4 ↔ MS3PROMINI-A-9 | OEM-F-4 "Fuel pump relay 2 (FLR2)" [low_side_out] is wired to MS3PROMINI-A-9 "Injector out E" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | UNMAPPED | OEM | 22 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-C-4 Clutch switch (MTCLS, M/T); OEM-C-6 Starter switch (STS); 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 |
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: - Drive-by-wire only with an add-on: AMP Drive-By-Wire Controller - Trigger pattern for Honda C32B not found in the ECU's docs (MS3 decoder list has no C30A/C32B/NSX (K24A2, RC51/AP1 S2000, TSX/D17, J-series)) - 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 AMP EFI MS3Pro Mini - OEM-D 2: Knock sensor rear (KSR): no free knock input on AMP EFI MS3Pro Mini - OEM-B 10: Ignition coil 5 (IGN COIL5): no free ignition output on AMP EFI MS3Pro Mini - OEM-B 2: Ignition coil 6 (IGN COIL6): no free ignition output on AMP EFI MS3Pro Mini - 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): AMP EFI MS3Pro Mini has no battery-constant input; not needed - 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 AMP EFI MS3Pro Mini - OEM-A 10: Rear secondary O2 heater (RSO2SHTC): no free heater_low_side/low_side/relay_control/ls_hs/injector on AMP EFI MS3Pro Mini - OEM-A 22: Front primary O2 heater (FPO2SHTC): no free heater_low_side/low_side/relay_control/ls_hs/injector on AMP EFI MS3Pro Mini - OEM-A 23: Rear primary O2 heater (RPO2SHTC): no free heater_low_side/low_side/relay_control/ls_hs/injector on AMP EFI MS3Pro Mini - OEM-A 9: Front secondary O2 heater (FSO2SHTC): no free heater_low_side/low_side/relay_control/ls_hs/injector on AMP EFI MS3Pro Mini - OEM-A 17: EVAP bypass solenoid (2WBS): no free low_side/relay_control/heater_low_side/ls_hs/injector on AMP EFI MS3Pro Mini - OEM-A 20: IAB control solenoid (IABCS): no free low_side/relay_control/heater_low_side/ls_hs/injector on AMP EFI MS3Pro Mini - OEM-A 21: EVAP purge control solenoid (PCS): no free low_side/relay_control/heater_low_side/ls_hs/injector on AMP EFI MS3Pro Mini - OEM-A 4: EVAP canister vent shut valve (VSV): no free low_side/relay_control/heater_low_side/ls_hs/injector on AMP EFI MS3Pro Mini - OEM-A 6: EGR control solenoid (ESOL): no free low_side/relay_control/heater_low_side/ls_hs/injector on AMP EFI MS3Pro Mini - OEM-A 7: Malfunction indicator lamp (MIL): no free low_side/relay_control/heater_low_side/ls_hs/injector on AMP EFI MS3Pro Mini - OEM-C 8: Engine speed pulse (NEP): no free tacho/frequency_out/low_side/ls_hs on AMP EFI MS3Pro Mini - OEM-D 17: Rear secondary O2 signal (O2S RS): no free o2_narrowband/analog_0_5 on AMP EFI MS3Pro Mini - OEM-D 18: Front primary O2 signal (O2S FP): no free o2_narrowband/analog_0_5 on AMP EFI MS3Pro Mini - OEM-D 19: Rear primary O2 signal (O2S RP): no free o2_narrowband/analog_0_5 on AMP EFI MS3Pro Mini - OEM-D 20: EGR valve lift sensor (EGRL): no free analog_0_5 on AMP EFI MS3Pro Mini - OEM-B 1: VTEC pressure switch front (VTP SWF): no free switch_in/frequency_in/analog_0_5 on AMP EFI MS3Pro Mini - OEM-B 3: VTEC pressure switch rear (VTP SWR): no free switch_in/frequency_in/analog_0_5 on AMP EFI MS3Pro Mini - OEM-B 4: Neutral switch (NT SW, M/T): no free switch_in/frequency_in/analog_0_5 on AMP EFI MS3Pro Mini - OEM-C 4: Clutch switch (MTCLS, M/T): no free switch_in/frequency_in/analog_0_5 on AMP EFI MS3Pro Mini - OEM-C 6: Starter switch (STS): no free switch_in/frequency_in/analog_0_5 on AMP EFI MS3Pro Mini - OEM-D 4: K-line diagnostics: no free k_line on AMP EFI MS3Pro Mini
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 | AMP EFI: MS3Pro Mini manual (fw 1.6.1) pinout & output ratings | https://cdn.shopify.com/s/files/1/0960/0014/7754/files/MS3Pro_User_Manual_Firmware_1.6.1_Mini.pdf?v=1760643335 | archive | 2026-10-05 | bed7d8ae8408 |