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Honda NSX NA2 1997-2005 (C32B) → MaxxECU MaxxECU GEN2 TRACK (auto)

Honda NSX NA2 1997-2005 (C32B) — MaxxECU — MaxxECU GEN2 TRACK
⚠ NOT CHECKED. Don't build from this.
Drawn by Michael Gnankou · Rev 0 · draft · 2026-10-12

Before you start

Not confident with automotive wiring? Have a professional harness builder or tuner do it, or check your work before first power-up. A wiring mistake can damage the ECU, the engine or the car, or start a fire.

Statusdraft · not yet verified: nobody has reported building and running this harness
Open errors5: read the Findings page before cutting any wire
Size of the job73 wires · 12 connectors · 0 part lines
ToolsCrimp and extraction tools for each terminal family (see Connectors) · wire strippers · multimeter · heat gun + heat-shrink
Order of work1. 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.

WireFromToGaugeColourCutLabelCrimp ACrimp BPin APin BContinuity
W1OEM-A-13SP-14V-10.85☐☐☐☐☐☐☐
W2OEM-C-1SP-14V-10.85☐☐☐☐☐☐☐
W3OEM-G-10SP-14V-10.85☐☐☐☐☐☐☐
W4OEM-G-2SP-14V-10.85☐☐☐☐☐☐☐
W5OEM-G-3SP-14V-10.85☐☐☐☐☐☐☐
W6OEM-G-9SP-14V-10.85☐☐☐☐☐☐☐
W7SP-14V-1MAXXECUGEN2T-MX1-250.85☐☐☐☐☐☐☐
W8SP-14V-1MAXXECUGEN2T-MX2-250.85☐☐☐☐☐☐☐
W9OEM-A-12SP-GND-10.85☐☐☐☐☐☐☐
W10OEM-A-25SP-GND-10.85☐☐☐☐☐☐☐
W11OEM-G-7SP-GND-10.85☐☐☐☐☐☐☐
W12OEM-G-8SP-GND-10.85☐☐☐☐☐☐☐
W13SP-GND-1MAXXECUGEN2T-MX1-90.85☐☐☐☐☐☐☐
W14SP-GND-1MAXXECUGEN2T-MX2-90.85☐☐☐☐☐☐☐
W15SP-GND-1MAXXECUGEN2T-MX3-90.85☐☐☐☐☐☐☐
W16OEM-A-26SP-0V-10.5☐☐☐☐☐☐☐
W17OEM-B-13SP-0V-10.5☐☐☐☐☐☐☐
W18OEM-B-14SP-0V-10.5☐☐☐☐☐☐☐
W19OEM-B-15SP-0V-10.5☐☐☐☐☐☐☐
W20OEM-B-16SP-0V-10.5☐☐☐☐☐☐☐
W21OEM-B-9SP-0V-10.5☐☐☐☐☐☐☐
W22OEM-D-11SP-0V-10.5☐☐☐☐☐☐☐
W23OEM-F-15SP-0V-10.5☐☐☐☐☐☐☐
W24OEM-F-2SP-0V-10.5☐☐☐☐☐☐☐
W25SP-0V-1MAXXECUGEN2T-MX1-140.5☐☐☐☐☐☐☐
W26OEM-D-10MAXXECUGEN2T-MX1-200.5☐☐☐☐☐☐☐
W27OEM-F-1MAXXECUGEN2T-MX1-220.5☐☐☐☐☐☐☐
W28OEM-F-14MAXXECUGEN2T-MX1-120.5☐☐☐☐☐☐☐
W29OEM-B-8MAXXECUGEN2T-MX1-100.5☐☐☐☐☐☐☐
W30OEM-B-6MAXXECUGEN2T-MX1-180.5☐☐☐☐☐☐☐
W31OEM-D-13MAXXECUGEN2T-MX2-280.5☐☐☐☐☐☐☐
W32OEM-D-2MAXXECUGEN2T-MX2-310.5☐☐☐☐☐☐☐
W33OEM-A-11MAXXECUGEN2T-MX1-10.5☐☐☐☐☐☐☐
W34OEM-A-24MAXXECUGEN2T-MX1-20.5☐☐☐☐☐☐☐
W35OEM-B-12MAXXECUGEN2T-MX1-30.5☐☐☐☐☐☐☐
W36OEM-B-11MAXXECUGEN2T-MX1-40.5☐☐☐☐☐☐☐
W37OEM-B-10MAXXECUGEN2T-MX2-10.5☐☐☐☐☐☐☐
W38OEM-B-2MAXXECUGEN2T-MX2-20.5☐☐☐☐☐☐☐
W39OEM-A-1MAXXECUGEN2T-MX1-310.5☐☐☐☐☐☐☐
W40OEM-A-2MAXXECUGEN2T-MX1-320.5☐☐☐☐☐☐☐
W41OEM-A-3MAXXECUGEN2T-MX1-330.5☐☐☐☐☐☐☐
W42OEM-A-14MAXXECUGEN2T-MX1-340.5☐☐☐☐☐☐☐
W43OEM-A-15MAXXECUGEN2T-MX2-330.5☐☐☐☐☐☐☐
W44OEM-A-16MAXXECUGEN2T-MX2-340.5☐☐☐☐☐☐☐
W45OEM-A-5MAXXECUGEN2T-MX1-50.5☐☐☐☐☐☐☐
W46OEM-F-19MAXXECUGEN2T-MX1-60.5☐☐☐☐☐☐☐
W47OEM-F-20MAXXECUGEN2T-MX1-70.5☐☐☐☐☐☐☐
W48OEM-D-9MAXXECUGEN2T-MX1-260.5☐☐☐☐☐☐☐
W49OEM-F-13MAXXECUGEN2T-MX1-270.5☐☐☐☐☐☐☐
W50OEM-F-12MAXXECUGEN2T-MX1-280.5☐☐☐☐☐☐☐
W51OEM-D-12MAXXECUGEN2T-MX1-290.5☐☐☐☐☐☐☐
W52OEM-D-7MAXXECUGEN2T-MX1-300.5☐☐☐☐☐☐☐
W53OEM-F-4MAXXECUGEN2T-MX1-80.5☐☐☐☐☐☐☐
W54OEM-A-8MAXXECUGEN2T-MX1-170.5☐☐☐☐☐☐☐
W55OEM-A-10MAXXECUGEN2T-MX2-120.5☐☐☐☐☐☐☐
W56OEM-A-22MAXXECUGEN2T-MX3-120.5☐☐☐☐☐☐☐
W57OEM-A-23MAXXECUGEN2T-MX2-30.5☐☐☐☐☐☐☐
W58OEM-A-9MAXXECUGEN2T-MX3-290.5☐☐☐☐☐☐☐
W59OEM-A-17MAXXECUGEN2T-MX3-300.5☐☐☐☐☐☐☐
W60OEM-D-16MAXXECUGEN2T-MX2-40.5☐☐☐☐☐☐☐
W61OEM-D-17MAXXECUGEN2T-MX2-50.5☐☐☐☐☐☐☐
W62OEM-D-18MAXXECUGEN2T-MX2-60.5☐☐☐☐☐☐☐
W63OEM-D-19MAXXECUGEN2T-MX2-130.5☐☐☐☐☐☐☐
W64OEM-D-8MAXXECUGEN2T-MX2-140.5☐☐☐☐☐☐☐
W65OEM-D-20MAXXECUGEN2T-MX2-150.5☐☐☐☐☐☐☐
W66OEM-C-7MAXXECUGEN2T-MX1-230.5☐☐☐☐☐☐☐
W67OEM-F-16MAXXECUGEN2T-MX1-240.5☐☐☐☐☐☐☐
W68OEM-F-6MAXXECUGEN2T-MX3-210.5☐☐☐☐☐☐☐
W69OEM-B-1MAXXECUGEN2T-MX3-260.5☐☐☐☐☐☐☐
W70OEM-B-3MAXXECUGEN2T-MX2-160.5☐☐☐☐☐☐☐
W71OEM-B-4MAXXECUGEN2T-MX2-170.5☐☐☐☐☐☐☐
W72OEM-C-4MAXXECUGEN2T-MX2-220.5☐☐☐☐☐☐☐
W73OEM-C-6MAXXECUGEN2T-MX2-230.5☐☐☐☐☐☐☐

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 AProbe BExpectWhyReading
1MAXXECUGEN2T-MX1-25MAXXECUGEN2T-MX1-14open (OL)+12 V supply must not touch sensor ground
2MAXXECUGEN2T-MX1-14MAXXECUGEN2T-MX1-12open (OL)sensor ground must not touch 5 V sensor reference
3MAXXECUGEN2T-MX1-14MAXXECUGEN2T-MX1-20open (OL)sensor ground must not touch 5 V sensor reference
4MAXXECUGEN2T-MX1-14MAXXECUGEN2T-MX1-22open (OL)sensor ground must not touch 5 V sensor reference
5MAXXECUGEN2T-MX1-25MAXXECUGEN2T-MX1-12open (OL)+12 V supply must not touch 5 V sensor reference
6MAXXECUGEN2T-MX1-25MAXXECUGEN2T-MX1-20open (OL)+12 V supply must not touch 5 V sensor reference
7MAXXECUGEN2T-MX1-25MAXXECUGEN2T-MX1-22open (OL)+12 V supply must not touch 5 V sensor reference
8MAXXECUGEN2T-MX1-9MAXXECUGEN2T-MX1-12open (OL)power ground must not touch 5 V sensor reference
9MAXXECUGEN2T-MX1-9MAXXECUGEN2T-MX1-20open (OL)power ground must not touch 5 V sensor reference
10MAXXECUGEN2T-MX1-9MAXXECUGEN2T-MX1-22open (OL)power ground must not touch 5 V sensor reference
11MAXXECUGEN2T-MX1-9MAXXECUGEN2T-MX1-25open (OL)power ground must not touch +12 V supply

If any reading doesn't match, stop and get help before powering up.

Revisions

RevLabelByDate
No revisions yet.

Schematic

MAXXECUGEN2T-MX1MAXXECUGEN2T-MX2MAXXECUGEN2T-MX3OEM-AOEM-BOEM-COEM-DOEM-FOEM-GSP-0VSP-14VSP-GND

Connectors

MAXXECUGEN2T-MX1

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
1Ignition 1—W33—0.5OEM-A-11———
10Digital/VR 1 SIGNAL +—W29—0.5OEM-B-8———
11Digital/VR 1 SIGNAL -————————
12Digital/VR 1 POWER SUPPLY—W28—0.5OEM-F-14———
13Digital/VR 1 SHIELD————————
14SENSOR GND—W25—0.5SP-0V-1———
15CAN L————————
16CAN H————————
17GP out 5 (GND)—W54—0.5OEM-A-8———
18Digital/VR 2 SIGNAL +—W30—0.5OEM-B-6———
19Digital/VR 2 SIGNAL -————————
2Ignition 2—W34—0.5OEM-A-24———
20Digital/VR 2 POWER SUPPLY—W26—0.5OEM-D-10———
21Digital/VR 2 SHIELD————————
225V power supply—W27—0.5OEM-F-1———
23Digital/VR 3 SIGNAL +—W66—0.5OEM-C-7———
24Digital/VR 4 SIGNAL +—W67—0.5OEM-F-16———
2512V supply 1—W7—0.85SP-14V-1———
26AIN 1—W48—0.5OEM-D-9———
27AIN 2—W49—0.5OEM-F-13———
28AIN 3—W50—0.5OEM-F-12———
29AIN 4—W51—0.5OEM-D-12———
3Ignition 3—W35—0.5OEM-B-12———
30AIN 5—W52—0.5OEM-D-7———
31INJECTOR 1—W39—0.5OEM-A-1———
32INJECTOR 2—W40—0.5OEM-A-2———
33INJECTOR 3—W41—0.5OEM-A-3———
34INJECTOR 4—W42—0.5OEM-A-14———
4Ignition 4—W36—0.5OEM-B-11———
5GP out 1 (GND)—W45—0.5OEM-A-5———
6GP out 2 (GND)—W46—0.5OEM-F-19———
7GP out 3 (GND)—W47—0.5OEM-F-20———
8GP out 4 (GND)—W53—0.5OEM-F-4———
9Engine gnd—W13—0.85SP-GND-1———

MAXXECUGEN2T-MX2

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
1Ignition 5—W37—0.5OEM-B-10———
10WBO2 Sensor 1 VS————————
11WBO2 Sensor 1 COM/VREF————————
12GP OUT 7 / WBO2 Sensor 1 H-—W55—0.5OEM-A-10———
13AIN 9—W63—0.5OEM-D-19———
14AIN 10—W64—0.5OEM-D-8———
15AIN 11—W65—0.5OEM-D-20———
16AIN 12—W70—0.5OEM-B-3———
17AIN 13—W71—0.5OEM-B-4———
18WBO2 sensor 1 RCAL————————
19WBO2 sensor 1 IP————————
2Ignition 6—W38—0.5OEM-B-2———
2012V WBO2 sensor 1 H+————————
21WBO2 sensor 1 SHIELD————————
22AIN 14—W72—0.5OEM-C-4———
23AIN 15—W73—0.5OEM-C-6———
2412V supply 3————————
2512V supply 2—W8—0.85SP-14V-1———
26KNOCK1 SHIELD————————
27KNOCK 1-————————
28KNOCK 1+—W31—0.5OEM-D-13———
29KNOCK 2 SHIELD————————
3GP out 6 (GND)—W57—0.5OEM-A-23———
30KNOCK 2-————————
31KNOCK 2+—W32—0.5OEM-D-2———
32AIN 16————————
33INJECTOR 5—W43—0.5OEM-A-15———
34INJECTOR 6—W44—0.5OEM-A-16———
4AIN 6—W60—0.5OEM-D-16———
5AIN 7—W61—0.5OEM-D-17———
6AIN 8—W62—0.5OEM-D-18———
7GP out 13 (H-BRIDGE 1)————————
8GP out 14 (H-BRIDGE 1)————————
9Engine gnd—W14—0.85SP-GND-1———

MAXXECUGEN2T-MX3

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
1GP out 15 (H-BRIDGE 2)————————
10WBO2 sensor 2 VS————————
11WBO2 sensor 2 COM/VREF————————
12GP Out 8 (GND) / WBO2 Sensor 2 H-—W56—0.5OEM-A-22———
14GP OUT 9 (12V)————————
15GP OUT 10 (12V)————————
16GP OUT 11 (12V)————————
17GP OUT 12 (12V)————————
18WBO2 sensor 2 RCAL————————
19WBO2 sensor 2 IP————————
2GP out 16 (H-BRIDGE 2)————————
2012V WBO2 sensor 2 (H+)————————
21Digital/VR 5 SIGNAL +—W68—0.5OEM-F-6———
22Digital/VR 5 SIGNAL -————————
23Digital/VR 5 SHIELD————————
24CAN 2 L————————
25CAN 2 H————————
26Digital/VR 6 SIGNAL +—W69—0.5OEM-B-1———
27Digital/VR 6 SIGNAL -————————
28Digital/VR 6 SHIELD————————
29INJECTOR 7—W58—0.5OEM-A-9———
3Ignition 7————————
30INJECTOR 8—W59—0.5OEM-A-17———
4Ignition 8————————
9Engine gnd—W15—0.85SP-GND-1———

OEM-A

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
1Injector 1 (INJ1)—W39—0.5MAXXECUGEN2T-MX1-31———
10Rear secondary O2 heater (RSO2SHTC)—W55—0.5MAXXECUGEN2T-MX2-12———
11Ignition coil 1 (IGN COIL1)—W33—0.5MAXXECUGEN2T-MX1-1———
12Power ground (PG1)—W9—0.85SP-GND-1———
13ECM power source (IGP1)—W1—0.85SP-14V-1———
14Injector 4 (INJ4)—W42—0.5MAXXECUGEN2T-MX1-34———
15Injector 5 (INJ5)—W43—0.5MAXXECUGEN2T-MX2-33———
16Injector 6 (INJ6)—W44—0.5MAXXECUGEN2T-MX2-34———
17EVAP bypass solenoid (2WBS)—W59—0.5MAXXECUGEN2T-MX3-30———
2Injector 2 (INJ2)—W40—0.5MAXXECUGEN2T-MX1-32———
20IAB control solenoid (IABCS)————————
21EVAP purge control solenoid (PCS)————————
22Front primary O2 heater (FPO2SHTC)—W56—0.5MAXXECUGEN2T-MX3-12———
23Rear primary O2 heater (RPO2SHTC)—W57—0.5MAXXECUGEN2T-MX2-3———
24Ignition coil 2 (IGN COIL2)—W34—0.5MAXXECUGEN2T-MX1-2———
25Power ground (PG2)—W10—0.85SP-GND-1———
26Logic ground (LG1)—W16—0.5SP-0V-1———
3Injector 3 (INJ3)—W41—0.5MAXXECUGEN2T-MX1-33———
4EVAP canister vent shut valve (VSV)————————
5Fuel pump relay (FLR1)—W45—0.5MAXXECUGEN2T-MX1-5———
6EGR control solenoid (ESOL)————————
7Malfunction indicator lamp (MIL)————————
8A/C clutch relay (ACC)—W54—0.5MAXXECUGEN2T-MX1-17———
9Front secondary O2 heater (FSO2SHTC)—W58—0.5MAXXECUGEN2T-MX3-29———

OEM-B

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
1VTEC pressure switch front (VTP SWF)—W69—0.5MAXXECUGEN2T-MX3-26———
10Ignition coil 5 (IGN COIL5)—W37—0.5MAXXECUGEN2T-MX2-1———
11Ignition coil 4 (IGN COIL4)—W36—0.5MAXXECUGEN2T-MX1-4———
12Ignition coil 3 (IGN COIL3)—W35—0.5MAXXECUGEN2T-MX1-3———
13Cylinder position sensor 2 return (CYP 2M)—W17—0.5SP-0V-1———
14Cylinder position sensor 1 return (CYP 1M)—W18—0.5SP-0V-1———
15Crank position sensor 2 return (CKP 2M)—W19—0.5SP-0V-1———
16Crank position sensor 1 return (CKP 1M)—W20—0.5SP-0V-1———
2Ignition coil 6 (IGN COIL6)—W38—0.5MAXXECUGEN2T-MX2-2———
3VTEC pressure switch rear (VTP SWR)—W70—0.5MAXXECUGEN2T-MX2-16———
4Neutral switch (NT SW, M/T)—W71—0.5MAXXECUGEN2T-MX2-17———
5Cylinder position sensor 2 + (CYP 2P)————————
6Cylinder position sensor 1 + (CYP 1P)—W30—0.5MAXXECUGEN2T-MX1-18———
7Crank position sensor 2 + (CKP 2P)————————
8Crank position sensor 1 + (CKP 1P)—W29—0.5MAXXECUGEN2T-MX1-10———
9Logic ground (LG2)—W21—0.5SP-0V-1———

OEM-C

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
1ECM power source (IGP2)—W2—0.85SP-14V-1———
4Clutch switch (MTCLS, M/T)—W72—0.5MAXXECUGEN2T-MX2-22———
6Starter switch (STS)—W73—0.5MAXXECUGEN2T-MX2-23———
7Vehicle speed sensor (VSS)—W66—0.5MAXXECUGEN2T-MX1-23———
8Engine speed pulse (NEP)————————

OEM-D

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
1Backup power (VBU)————————
10Sensor 5V supply (VCC2)—W26—0.5MAXXECUGEN2T-MX1-20———
11Sensor ground (SG2)—W22—0.5SP-0V-1———
12Throttle position sensor (TPS)—W51—0.5MAXXECUGEN2T-MX1-29———
13Knock sensor front (KSF)—W31—0.5MAXXECUGEN2T-MX2-28———
16Front secondary O2 signal (O2S FS)—W60—0.5MAXXECUGEN2T-MX2-4———
17Rear secondary O2 signal (O2S RS)—W61—0.5MAXXECUGEN2T-MX2-5———
18Front primary O2 signal (O2S FP)—W62—0.5MAXXECUGEN2T-MX2-6———
19Rear primary O2 signal (O2S RP)—W63—0.5MAXXECUGEN2T-MX2-13———
2Knock sensor rear (KSR)—W32—0.5MAXXECUGEN2T-MX2-31———
20EGR valve lift sensor (EGRL)—W65—0.5MAXXECUGEN2T-MX2-15———
4K-line diagnostics————————
7Engine coolant temperature (ECT)—W52—0.5MAXXECUGEN2T-MX1-30———
8Intake air temperature (IAT)—W64—0.5MAXXECUGEN2T-MX2-14———
9MAP sensor—W48—0.5MAXXECUGEN2T-MX1-26———

OEM-F

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
1Sensor 5V supply (VCC1)—W27—0.5MAXXECUGEN2T-MX1-22———
12Accelerator pedal position 2 (AP2)—W50—0.5MAXXECUGEN2T-MX1-28———
13Accelerator pedal position 1 (AP1)—W49—0.5MAXXECUGEN2T-MX1-27———
14Accelerator pedal 5V supply (VCC3)—W28—0.5MAXXECUGEN2T-MX1-12———
15Accelerator pedal ground (SG3)—W23—0.5SP-0V-1———
16Brake switch 1 (BKSW1)—W67—0.5MAXXECUGEN2T-MX1-24———
19VTEC solenoid front (VT SOLF)—W46—0.5MAXXECUGEN2T-MX1-6———
2Sensor ground (SG1)—W24—0.5SP-0V-1———
20VTEC solenoid rear (VT SOLR)—W47—0.5MAXXECUGEN2T-MX1-7———
4Fuel pump relay 2 (FLR2)—W53—0.5MAXXECUGEN2T-MX1-8———
6Brake switch 2 (BKSW2)—W68—0.5MAXXECUGEN2T-MX3-21———

OEM-G

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
10Throttle motor common power phases 2&4 (COM2)—W3—0.85SP-14V-1———
11Throttle motor phase 3 (PM3)————————
12Throttle motor phase 4 (PM4)————————
2Throttle motor power source 1 (IGM1)—W4—0.85SP-14V-1———
3Throttle motor power source 2 (IGM2)—W5—0.85SP-14V-1———
4Throttle motor phase 1 (PM1)————————
5Throttle motor phase 2 (PM2)————————
7Throttle motor ground 1 (PGM1)—W11—0.85SP-GND-1———
8Throttle motor ground 2 (PGM2)—W12—0.85SP-GND-1———
9Throttle motor common power phases 1&3 (COM1)—W6—0.85SP-14V-1———

SP-0V

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
1——W16—0.5OEM-A-26———
1——W17—0.5OEM-B-13———
1——W18—0.5OEM-B-14———
1——W19—0.5OEM-B-15———
1——W20—0.5OEM-B-16———
1——W21—0.5OEM-B-9———
1——W22—0.5OEM-D-11———
1——W23—0.5OEM-F-15———
1——W24—0.5OEM-F-2———
1——W25—0.5MAXXECUGEN2T-MX1-14———

SP-14V

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
1——W1—0.85OEM-A-13———
1——W2—0.85OEM-C-1———
1——W3—0.85OEM-G-10———
1——W4—0.85OEM-G-2———
1——W5—0.85OEM-G-3———
1——W6—0.85OEM-G-9———
1——W7—0.85MAXXECUGEN2T-MX1-25———
1——W8—0.85MAXXECUGEN2T-MX2-25———

SP-GND

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
1——W9—0.85OEM-A-12———
1——W10—0.85OEM-A-25———
1——W11—0.85OEM-G-7———
1——W12—0.85OEM-G-8———
1——W13—0.85MAXXECUGEN2T-MX1-9———
1——W14—0.85MAXXECUGEN2T-MX2-9———
1——W15—0.85MAXXECUGEN2T-MX3-9———

Pin map

OEM pointOEM functionOEM familyTarget pointTarget functionTarget familyWire colourEvidence
OEM-A-1Injector 1 (INJ1)injector_outMAXXECUGEN2T-MX1-31INJECTOR 1injector_outsingle_source
OEM-A-10Rear secondary O2 heater (RSO2SHTC)low_side_outMAXXECUGEN2T-MX2-12GP OUT 7 / WBO2 Sensor 1 H-low_side_outsingle_source
OEM-A-11Ignition coil 1 (IGN COIL1)ignition_outMAXXECUGEN2T-MX1-1Ignition 1ignition_outsingle_source
OEM-A-12Power ground (PG1)groundMAXXECUGEN2T-MX1-9 + MAXXECUGEN2T-MX2-9 + MAXXECUGEN2T-MX3-9Engine gnd + Engine gnd + Engine gndgroundsingle_source
OEM-A-13ECM power source (IGP1)power_inMAXXECUGEN2T-MX1-25 + MAXXECUGEN2T-MX2-2512V supply 1 + 12V supply 2power_insingle_source
OEM-A-14Injector 4 (INJ4)injector_outMAXXECUGEN2T-MX1-34INJECTOR 4injector_outsingle_source
OEM-A-15Injector 5 (INJ5)injector_outMAXXECUGEN2T-MX2-33INJECTOR 5injector_outsingle_source
OEM-A-16Injector 6 (INJ6)injector_outMAXXECUGEN2T-MX2-34INJECTOR 6injector_outsingle_source
OEM-A-17EVAP bypass solenoid (2WBS)low_side_outMAXXECUGEN2T-MX3-30INJECTOR 8injector_outsingle_source
OEM-A-2Injector 2 (INJ2)injector_outMAXXECUGEN2T-MX1-32INJECTOR 2injector_outsingle_source
OEM-A-20IAB control solenoid (IABCS)low_side_out———single_source
OEM-A-21EVAP purge control solenoid (PCS)low_side_out———single_source
OEM-A-22Front primary O2 heater (FPO2SHTC)low_side_outMAXXECUGEN2T-MX3-12GP Out 8 (GND) / WBO2 Sensor 2 H-low_side_outsingle_source
OEM-A-23Rear primary O2 heater (RPO2SHTC)low_side_outMAXXECUGEN2T-MX2-3GP out 6 (GND)low_side_outsingle_source
OEM-A-24Ignition coil 2 (IGN COIL2)ignition_outMAXXECUGEN2T-MX1-2Ignition 2ignition_outsingle_source
OEM-A-25Power ground (PG2)groundMAXXECUGEN2T-MX1-9 + MAXXECUGEN2T-MX2-9 + MAXXECUGEN2T-MX3-9Engine gnd + Engine gnd + Engine gndgroundsingle_source
OEM-A-26Logic ground (LG1)sensor_groundMAXXECUGEN2T-MX1-14SENSOR GNDsensor_groundsingle_source
OEM-A-3Injector 3 (INJ3)injector_outMAXXECUGEN2T-MX1-33INJECTOR 3injector_outsingle_source
OEM-A-4EVAP canister vent shut valve (VSV)low_side_out———single_source
OEM-A-5Fuel pump relay (FLR1)low_side_outMAXXECUGEN2T-MX1-5GP out 1 (GND)low_side_outsingle_source
OEM-A-6EGR control solenoid (ESOL)low_side_out———single_source
OEM-A-7Malfunction indicator lamp (MIL)low_side_out———single_source
OEM-A-8A/C clutch relay (ACC)low_side_outMAXXECUGEN2T-MX1-17GP out 5 (GND)low_side_outsingle_source
OEM-A-9Front secondary O2 heater (FSO2SHTC)low_side_outMAXXECUGEN2T-MX3-29INJECTOR 7injector_outsingle_source
OEM-B-1VTEC pressure switch front (VTP SWF)digital_inMAXXECUGEN2T-MX3-26Digital/VR 6 SIGNAL +digital_insingle_source
OEM-B-10Ignition coil 5 (IGN COIL5)ignition_outMAXXECUGEN2T-MX2-1Ignition 5ignition_outsingle_source
OEM-B-11Ignition coil 4 (IGN COIL4)ignition_outMAXXECUGEN2T-MX1-4Ignition 4ignition_outsingle_source
OEM-B-12Ignition coil 3 (IGN COIL3)ignition_outMAXXECUGEN2T-MX1-3Ignition 3ignition_outsingle_source
OEM-B-13Cylinder position sensor 2 return (CYP 2M)sensor_groundMAXXECUGEN2T-MX1-14SENSOR GNDsensor_groundsingle_source
OEM-B-14Cylinder position sensor 1 return (CYP 1M)sensor_groundMAXXECUGEN2T-MX1-14SENSOR GNDsensor_groundsingle_source
OEM-B-15Crank position sensor 2 return (CKP 2M)sensor_groundMAXXECUGEN2T-MX1-14SENSOR GNDsensor_groundsingle_source
OEM-B-16Crank position sensor 1 return (CKP 1M)sensor_groundMAXXECUGEN2T-MX1-14SENSOR GNDsensor_groundsingle_source
OEM-B-2Ignition coil 6 (IGN COIL6)ignition_outMAXXECUGEN2T-MX2-2Ignition 6ignition_outsingle_source
OEM-B-3VTEC pressure switch rear (VTP SWR)digital_inMAXXECUGEN2T-MX2-16AIN 12analog_insingle_source
OEM-B-4Neutral switch (NT SW, M/T)digital_inMAXXECUGEN2T-MX2-17AIN 13analog_insingle_source
OEM-B-5Cylinder position sensor 2 + (CYP 2P)trigger_in———single_source
OEM-B-6Cylinder position sensor 1 + (CYP 1P)trigger_inMAXXECUGEN2T-MX1-18Digital/VR 2 SIGNAL +trigger_insingle_source
OEM-B-7Crank position sensor 2 + (CKP 2P)trigger_in———single_source
OEM-B-8Crank position sensor 1 + (CKP 1P)trigger_inMAXXECUGEN2T-MX1-10Digital/VR 1 SIGNAL +trigger_insingle_source
OEM-B-9Logic ground (LG2)sensor_groundMAXXECUGEN2T-MX1-14SENSOR GNDsensor_groundsingle_source
OEM-C-1ECM power source (IGP2)power_inMAXXECUGEN2T-MX1-25 + MAXXECUGEN2T-MX2-2512V supply 1 + 12V supply 2power_insingle_source
OEM-C-4Clutch switch (MTCLS, M/T)digital_inMAXXECUGEN2T-MX2-22AIN 14analog_insingle_source
OEM-C-6Starter switch (STS)digital_inMAXXECUGEN2T-MX2-23AIN 15analog_insingle_source
OEM-C-7Vehicle speed sensor (VSS)digital_inMAXXECUGEN2T-MX1-23Digital/VR 3 SIGNAL +digital_insingle_source
OEM-C-8Engine speed pulse (NEP)tacho_out———single_source
OEM-D-1Backup power (VBU)power_in———single_source
OEM-D-10Sensor 5V supply (VCC2)vrefMAXXECUGEN2T-MX1-20Digital/VR 2 POWER SUPPLYvrefsingle_source
OEM-D-11Sensor ground (SG2)sensor_groundMAXXECUGEN2T-MX1-14SENSOR GNDsensor_groundsingle_source
OEM-D-12Throttle position sensor (TPS)analog_inMAXXECUGEN2T-MX1-29AIN 4analog_insingle_source
OEM-D-13Knock sensor front (KSF)knock_inMAXXECUGEN2T-MX2-28KNOCK 1+knock_insingle_source
OEM-D-16Front secondary O2 signal (O2S FS)lambda_nb_inMAXXECUGEN2T-MX2-4AIN 6analog_insingle_source
OEM-D-17Rear secondary O2 signal (O2S RS)lambda_nb_inMAXXECUGEN2T-MX2-5AIN 7analog_insingle_source
OEM-D-18Front primary O2 signal (O2S FP)lambda_nb_inMAXXECUGEN2T-MX2-6AIN 8analog_insingle_source
OEM-D-19Rear primary O2 signal (O2S RP)lambda_nb_inMAXXECUGEN2T-MX2-13AIN 9analog_insingle_source
OEM-D-2Knock sensor rear (KSR)knock_inMAXXECUGEN2T-MX2-31KNOCK 2+knock_insingle_source
OEM-D-20EGR valve lift sensor (EGRL)analog_inMAXXECUGEN2T-MX2-15AIN 11analog_insingle_source
OEM-D-4K-line diagnosticsserial———single_source
OEM-D-7Engine coolant temperature (ECT)temp_inMAXXECUGEN2T-MX1-30AIN 5analog_insingle_source
OEM-D-8Intake air temperature (IAT)temp_inMAXXECUGEN2T-MX2-14AIN 10analog_insingle_source
OEM-D-9MAP sensoranalog_inMAXXECUGEN2T-MX1-26AIN 1analog_insingle_source
OEM-F-1Sensor 5V supply (VCC1)vrefMAXXECUGEN2T-MX1-225V power supplyvrefsingle_source
OEM-F-12Accelerator pedal position 2 (AP2)analog_inMAXXECUGEN2T-MX1-28AIN 3analog_insingle_source
OEM-F-13Accelerator pedal position 1 (AP1)analog_inMAXXECUGEN2T-MX1-27AIN 2analog_insingle_source
OEM-F-14Accelerator pedal 5V supply (VCC3)vrefMAXXECUGEN2T-MX1-12Digital/VR 1 POWER SUPPLYvrefsingle_source
OEM-F-15Accelerator pedal ground (SG3)sensor_groundMAXXECUGEN2T-MX1-14SENSOR GNDsensor_groundsingle_source
OEM-F-16Brake switch 1 (BKSW1)digital_inMAXXECUGEN2T-MX1-24Digital/VR 4 SIGNAL +digital_insingle_source
OEM-F-19VTEC solenoid front (VT SOLF)low_side_outMAXXECUGEN2T-MX1-6GP out 2 (GND)low_side_outsingle_source
OEM-F-2Sensor ground (SG1)sensor_groundMAXXECUGEN2T-MX1-14SENSOR GNDsensor_groundsingle_source
OEM-F-20VTEC solenoid rear (VT SOLR)low_side_outMAXXECUGEN2T-MX1-7GP out 3 (GND)low_side_outsingle_source
OEM-F-4Fuel pump relay 2 (FLR2)low_side_outMAXXECUGEN2T-MX1-8GP out 4 (GND)low_side_outsingle_source
OEM-F-6Brake switch 2 (BKSW2)digital_inMAXXECUGEN2T-MX3-21Digital/VR 5 SIGNAL +digital_insingle_source
OEM-G-10Throttle motor common power phases 2&4 (COM2)power_inMAXXECUGEN2T-MX1-25 + MAXXECUGEN2T-MX2-2512V supply 1 + 12V supply 2power_insingle_source
OEM-G-11Throttle motor phase 3 (PM3)hbridge_out———single_source
OEM-G-12Throttle motor phase 4 (PM4)hbridge_out———single_source
OEM-G-2Throttle motor power source 1 (IGM1)power_inMAXXECUGEN2T-MX1-25 + MAXXECUGEN2T-MX2-2512V supply 1 + 12V supply 2power_insingle_source
OEM-G-3Throttle motor power source 2 (IGM2)power_inMAXXECUGEN2T-MX1-25 + MAXXECUGEN2T-MX2-2512V supply 1 + 12V supply 2power_insingle_source
OEM-G-4Throttle motor phase 1 (PM1)hbridge_out———single_source
OEM-G-5Throttle motor phase 2 (PM2)hbridge_out———single_source
OEM-G-7Throttle motor ground 1 (PGM1)groundMAXXECUGEN2T-MX1-9 + MAXXECUGEN2T-MX2-9 + MAXXECUGEN2T-MX3-9Engine gnd + Engine gnd + Engine gndgroundsingle_source
OEM-G-8Throttle motor ground 2 (PGM2)groundMAXXECUGEN2T-MX1-9 + MAXXECUGEN2T-MX2-9 + MAXXECUGEN2T-MX3-9Engine gnd + Engine gnd + Engine gndgroundsingle_source
OEM-G-9Throttle motor common power phases 1&3 (COM1)power_inMAXXECUGEN2T-MX1-25 + MAXXECUGEN2T-MX2-2512V supply 1 + 12V supply 2power_insingle_source

Cut list

WireFromToGauge (mm²)ColourLengthSignalIdent
W1OEM-A-13SP-14V-10.85no routeECM power source (IGP1)—
W2OEM-C-1SP-14V-10.85no routeECM power source (IGP2)—
W3OEM-G-10SP-14V-10.85no routeThrottle motor common power phases 2&4 (COM2)—
W4OEM-G-2SP-14V-10.85no routeThrottle motor power source 1 (IGM1)—
W5OEM-G-3SP-14V-10.85no routeThrottle motor power source 2 (IGM2)—
W6OEM-G-9SP-14V-10.85no routeThrottle motor common power phases 1&3 (COM1)—
W7SP-14V-1MAXXECUGEN2T-MX1-250.85no route12V supply 1—
W8SP-14V-1MAXXECUGEN2T-MX2-250.85no route12V supply 2—
W9OEM-A-12SP-GND-10.85no routePower ground (PG1)—
W10OEM-A-25SP-GND-10.85no routePower ground (PG2)—
W11OEM-G-7SP-GND-10.85no routeThrottle motor ground 1 (PGM1)—
W12OEM-G-8SP-GND-10.85no routeThrottle motor ground 2 (PGM2)—
W13SP-GND-1MAXXECUGEN2T-MX1-90.85no routeEngine gnd—
W14SP-GND-1MAXXECUGEN2T-MX2-90.85no routeEngine gnd—
W15SP-GND-1MAXXECUGEN2T-MX3-90.85no routeEngine gnd—
W16OEM-A-26SP-0V-10.5no routeLogic ground (LG1)—
W17OEM-B-13SP-0V-10.5no routeCylinder position sensor 2 return (CYP 2M)—
W18OEM-B-14SP-0V-10.5no routeCylinder position sensor 1 return (CYP 1M)—
W19OEM-B-15SP-0V-10.5no routeCrank position sensor 2 return (CKP 2M)—
W20OEM-B-16SP-0V-10.5no routeCrank position sensor 1 return (CKP 1M)—
W21OEM-B-9SP-0V-10.5no routeLogic ground (LG2)—
W22OEM-D-11SP-0V-10.5no routeSensor ground (SG2)—
W23OEM-F-15SP-0V-10.5no routeAccelerator pedal ground (SG3)—
W24OEM-F-2SP-0V-10.5no routeSensor ground (SG1)—
W25SP-0V-1MAXXECUGEN2T-MX1-140.5no routeSENSOR GND—
W26OEM-D-10MAXXECUGEN2T-MX1-200.5no routeSensor 5V supply (VCC2)—
W27OEM-F-1MAXXECUGEN2T-MX1-220.5no routeSensor 5V supply (VCC1)—
W28OEM-F-14MAXXECUGEN2T-MX1-120.5no routeAccelerator pedal 5V supply (VCC3)—
W29OEM-B-8MAXXECUGEN2T-MX1-100.5no routeCrank position sensor 1 + (CKP 1P)—
W30OEM-B-6MAXXECUGEN2T-MX1-180.5no routeCylinder position sensor 1 + (CYP 1P)—
W31OEM-D-13MAXXECUGEN2T-MX2-280.5no routeKnock sensor front (KSF)—
W32OEM-D-2MAXXECUGEN2T-MX2-310.5no routeKnock sensor rear (KSR)—
W33OEM-A-11MAXXECUGEN2T-MX1-10.5no routeIgnition coil 1 (IGN COIL1)—
W34OEM-A-24MAXXECUGEN2T-MX1-20.5no routeIgnition coil 2 (IGN COIL2)—
W35OEM-B-12MAXXECUGEN2T-MX1-30.5no routeIgnition coil 3 (IGN COIL3)—
W36OEM-B-11MAXXECUGEN2T-MX1-40.5no routeIgnition coil 4 (IGN COIL4)—
W37OEM-B-10MAXXECUGEN2T-MX2-10.5no routeIgnition coil 5 (IGN COIL5)—
W38OEM-B-2MAXXECUGEN2T-MX2-20.5no routeIgnition coil 6 (IGN COIL6)—
W39OEM-A-1MAXXECUGEN2T-MX1-310.5no routeInjector 1 (INJ1)—
W40OEM-A-2MAXXECUGEN2T-MX1-320.5no routeInjector 2 (INJ2)—
W41OEM-A-3MAXXECUGEN2T-MX1-330.5no routeInjector 3 (INJ3)—
W42OEM-A-14MAXXECUGEN2T-MX1-340.5no routeInjector 4 (INJ4)—
W43OEM-A-15MAXXECUGEN2T-MX2-330.5no routeInjector 5 (INJ5)—
W44OEM-A-16MAXXECUGEN2T-MX2-340.5no routeInjector 6 (INJ6)—
W45OEM-A-5MAXXECUGEN2T-MX1-50.5no routeFuel pump relay (FLR1)—
W46OEM-F-19MAXXECUGEN2T-MX1-60.5no routeVTEC solenoid front (VT SOLF)—
W47OEM-F-20MAXXECUGEN2T-MX1-70.5no routeVTEC solenoid rear (VT SOLR)—
W48OEM-D-9MAXXECUGEN2T-MX1-260.5no routeMAP sensor—
W49OEM-F-13MAXXECUGEN2T-MX1-270.5no routeAccelerator pedal position 1 (AP1)—
W50OEM-F-12MAXXECUGEN2T-MX1-280.5no routeAccelerator pedal position 2 (AP2)—
W51OEM-D-12MAXXECUGEN2T-MX1-290.5no routeThrottle position sensor (TPS)—
W52OEM-D-7MAXXECUGEN2T-MX1-300.5no routeEngine coolant temperature (ECT)—
W53OEM-F-4MAXXECUGEN2T-MX1-80.5no routeFuel pump relay 2 (FLR2)—
W54OEM-A-8MAXXECUGEN2T-MX1-170.5no routeA/C clutch relay (ACC)—
W55OEM-A-10MAXXECUGEN2T-MX2-120.5no routeRear secondary O2 heater (RSO2SHTC)—
W56OEM-A-22MAXXECUGEN2T-MX3-120.5no routeFront primary O2 heater (FPO2SHTC)—
W57OEM-A-23MAXXECUGEN2T-MX2-30.5no routeRear primary O2 heater (RPO2SHTC)—
W58OEM-A-9MAXXECUGEN2T-MX3-290.5no routeFront secondary O2 heater (FSO2SHTC)—
W59OEM-A-17MAXXECUGEN2T-MX3-300.5no routeEVAP bypass solenoid (2WBS)—
W60OEM-D-16MAXXECUGEN2T-MX2-40.5no routeFront secondary O2 signal (O2S FS)—
W61OEM-D-17MAXXECUGEN2T-MX2-50.5no routeRear secondary O2 signal (O2S RS)—
W62OEM-D-18MAXXECUGEN2T-MX2-60.5no routeFront primary O2 signal (O2S FP)—
W63OEM-D-19MAXXECUGEN2T-MX2-130.5no routeRear primary O2 signal (O2S RP)—
W64OEM-D-8MAXXECUGEN2T-MX2-140.5no routeIntake air temperature (IAT)—
W65OEM-D-20MAXXECUGEN2T-MX2-150.5no routeEGR valve lift sensor (EGRL)—
W66OEM-C-7MAXXECUGEN2T-MX1-230.5no routeVehicle speed sensor (VSS)—
W67OEM-F-16MAXXECUGEN2T-MX1-240.5no routeBrake switch 1 (BKSW1)—
W68OEM-F-6MAXXECUGEN2T-MX3-210.5no routeBrake switch 2 (BKSW2)—
W69OEM-B-1MAXXECUGEN2T-MX3-260.5no routeVTEC pressure switch front (VTP SWF)—
W70OEM-B-3MAXXECUGEN2T-MX2-160.5no routeVTEC pressure switch rear (VTP SWR)—
W71OEM-B-4MAXXECUGEN2T-MX2-170.5no routeNeutral switch (NT SW, M/T)—
W72OEM-C-4MAXXECUGEN2T-MX2-220.5no routeClutch switch (MTCLS, M/T)—
W73OEM-C-6MAXXECUGEN2T-MX2-230.5no routeStarter switch (STS)—

Bill of materials

CategoryPart numberManufacturerDescriptionQtyUnit

ECU setup sheet

RoleEngine refEngine signalSensorECU pointECU functionECU classSetup flag
No configured channels.

Findings

Open (14)

SeverityCodeSubjectMessage
errorDBW_SENSOR_INPUTtpsOnly 0 throttle-position track(s) found. An electronic throttle needs two (main and sub) so the ECU can cross-check them.
errorREQUIRED_UNMAPPEDOEM-G-11Required OEM function "Throttle motor phase 3 (PM3)" (hbridge_out) is not connected to the new ECU.
errorREQUIRED_UNMAPPEDOEM-G-12Required OEM function "Throttle motor phase 4 (PM4)" (hbridge_out) is not connected to the new ECU.
errorREQUIRED_UNMAPPEDOEM-G-4Required OEM function "Throttle motor phase 1 (PM1)" (hbridge_out) is not connected to the new ECU.
errorREQUIRED_UNMAPPEDOEM-G-5Required OEM function "Throttle motor phase 2 (PM2)" (hbridge_out) is not connected to the new ECU.
warnNET_FAMILYOEM-B-3 ↔ MAXXECUGEN2T-MX2-16OEM-B-3 "VTEC pressure switch rear (VTP SWR)" [digital_in] is wired to MAXXECUGEN2T-MX2-16 "AIN 12" [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.
warnNET_FAMILYOEM-B-4 ↔ MAXXECUGEN2T-MX2-17OEM-B-4 "Neutral switch (NT SW, M/T)" [digital_in] is wired to MAXXECUGEN2T-MX2-17 "AIN 13" [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.
warnNET_FAMILYOEM-C-4 ↔ MAXXECUGEN2T-MX2-22OEM-C-4 "Clutch switch (MTCLS, M/T)" [digital_in] is wired to MAXXECUGEN2T-MX2-22 "AIN 14" [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.
warnNET_FAMILYOEM-C-6 ↔ MAXXECUGEN2T-MX2-23OEM-C-6 "Starter switch (STS)" [digital_in] is wired to MAXXECUGEN2T-MX2-23 "AIN 15" [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.
infoNET_FAMILYOEM-A-17 ↔ MAXXECUGEN2T-MX3-30OEM-A-17 "EVAP bypass solenoid (2WBS)" [low_side_out] is wired to MAXXECUGEN2T-MX3-30 "INJECTOR 8" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency.
infoNET_FAMILYOEM-A-9 ↔ MAXXECUGEN2T-MX3-29OEM-A-9 "Front secondary O2 heater (FSO2SHTC)" [low_side_out] is wired to MAXXECUGEN2T-MX3-29 "INJECTOR 7" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency.
infoNET_FAMILYOEM-D-7 ↔ MAXXECUGEN2T-MX1-30OEM-D-7 "Engine coolant temperature (ECT)" [temp_in] is wired to MAXXECUGEN2T-MX1-30 "AIN 5" [analog_in]. Thermistor on a plain analog input needs a pull-up; check the channel can enable one.
infoNET_FAMILYOEM-D-8 ↔ MAXXECUGEN2T-MX2-14OEM-D-8 "Intake air temperature (IAT)" [temp_in] is wired to MAXXECUGEN2T-MX2-14 "AIN 10" [analog_in]. Thermistor on a plain analog input needs a pull-up; check the channel can enable one.
infoUNMAPPEDOEM9 optional OEM pins are not mapped: OEM-A-20 IAB control solenoid (IABCS); OEM-A-21 EVAP purge control solenoid (PCS); OEM-A-4 EVAP canister vent shut valve (VSV); OEM-A-6 EGR control solenoid (ESOL); OEM-A-7 Malfunction indicator lamp (MIL); OEM-B-5 Cylinder position sensor 2 + (CYP 2P); OEM-B-7 Crank position sensor 2 + (CKP 2P); OEM-C-8 Engine speed pulse (NEP); OEM-D-4 K-line diagnostics

Accepted (1)

CodeSubjectReasonBy
REQUIRED_UNMAPPEDOEM-D-1Battery-constant (memory) feed of the stock ECU: the new ECU has no such input, so it is not needed.mapping-proposal

Notes

Fit check: unconfirmed. Confirm these before building: - Trigger pattern for Honda C32B not found in the ECU's docs (MaxxECU trigger list has no C30A/C32B/NSX (Honda K20/K20A2/K20Z4/F20C only)) - 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-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): MaxxECU MaxxECU GEN2 TRACK has no battery-constant input; not needed - OEM-B 7: Crank position sensor 2 + (CKP 2P): no free crank_vr/frequency_in input on MaxxECU MaxxECU GEN2 TRACK - OEM-B 5: Cylinder position sensor 2 + (CYP 2P): no free cam_vr/cam_hall/frequency_in input on MaxxECU MaxxECU GEN2 TRACK - OEM-A 20: IAB control solenoid (IABCS): no free low_side/relay_control/heater_low_side/ls_hs/injector on MaxxECU MaxxECU GEN2 TRACK - OEM-A 21: EVAP purge control solenoid (PCS): no free low_side/relay_control/heater_low_side/ls_hs/injector on MaxxECU MaxxECU GEN2 TRACK - OEM-A 4: EVAP canister vent shut valve (VSV): no free low_side/relay_control/heater_low_side/ls_hs/injector on MaxxECU MaxxECU GEN2 TRACK - OEM-A 6: EGR control solenoid (ESOL): no free low_side/relay_control/heater_low_side/ls_hs/injector on MaxxECU MaxxECU GEN2 TRACK - OEM-A 7: Malfunction indicator lamp (MIL): no free low_side/relay_control/heater_low_side/ls_hs/injector on MaxxECU MaxxECU GEN2 TRACK - OEM-C 8: Engine speed pulse (NEP): no free tacho/frequency_out/low_side/ls_hs on MaxxECU MaxxECU GEN2 TRACK - OEM-D 4: K-line diagnostics: no free k_line on MaxxECU MaxxECU GEN2 TRACK - MAXXECUGEN2T-MX2 24: 12V supply 3: not fed (the stock ECU has no ignition-sense pin); feed it from a switched-ignition source

Sources

ReliabilityKindTitleURLArchiveCapturedSHA-256
4vendor_doc1997-2005 Acura NSX Service Manual §11 (PGM-FI), ECM terminal arrangementhttps://www.manualslib.com/manual/1540331/Acura-Nsx-1997.html———
4vendor_docMaxxECU GEN2 pinout (RACE MX1–MX4 / TRACK MX1–MX3)http://www.maxxecu.com/webhelp/wirings-maxxecu_gen2_pinout.htmlarchive2026-10-05f689b8b6b08f