Wiring Diagram Cluster
1991 Acura NSX Engine Management Wiring Diagram
Find ECU/PCM wiring, fuel injector circuits, ignition coil paths, and oxygen sensor schematics for engine diagnostics.
Matched Diagrams
48
Variant Used
NSX V6-3.0L DOHC
Total Vehicle Diagrams
1265
From Diagram To Fix
Use this wiring page as the jump point, not the dead end
Open the exact diagram, then move directly into the vehicle hub, the repair most likely tied to this system, or the code cluster that usually shows up with it.
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Vehicle Repair Hub
Step out of raw diagrams and into the full 1991 Acura NSX hub with repairs, specs, codes, and other systems already tied to this car.
View vehicle repair hub →Likely fix path
Exact Repair Guides
These repair flows most often intersect with engine management diagnosis on this exact vehicle.
Spark Plug Replacement →Diagnostic signal
Codes Often Seen With This System
Use the code cluster when wiring faults overlap with check-engine or module-level diagnostics.
P0301: Cylinder 1 Misfire Detected →Top Engine Management Diagram Paths
1.Vacuum and Vapor Hose Diagrams > Powertrain Management > Emission Control Systems > System Diagram > Engine Vacuum ConnectionsGeneralOpen2.Emission Control Systems — Vacuum and Vapor Hose Diagrams > Engine Vacuum ConnectionsPowertrain ManagementOpen3.Engine > Tune-up and Engine Performance Checks > Fuel Filter — DiagramEngine, Cooling and ExhaustOpen4.Fuel Delivery and Air Induction > Fuel Injector — DiagramPowertrain ManagementOpen5.Ignition System — Electrical Diagrams > EnginePowertrain ManagementOpen6.Tune-up and Engine Performance Checks > Fuel Filter — DiagramPowertrain ManagementOpen7.Connector Views > Engine Control ModuleGeneralOpen8.Electrical Diagrams > Computers and Control Systems > Engine Control ModuleGeneralOpen9.Electrical Diagrams > Computers and Control Systems > Idle Speed/Throttle Actuator - ElectronicGeneralOpen10.Electrical Diagrams > Computers and Control Systems > Throttle Position SensorGeneralOpen11.Electrical Diagrams > Fuel Delivery and Air Induction > Fuel Injector ResistorGeneralOpen12.Electrical Diagrams > Ignition System > System Diagram > EngineGeneralOpen13.Fluid Diagrams > Fuel InjectorGeneralOpen14.Harness > Engine Wire HarnessGeneralOpen15.Tune-up and Engine Performance Checks > Fuel Filter — DiagramMaintenanceOpen16.Vacuum and Vapor Hose Diagrams > Powertrain Management > Emission Control Systems > Evaporative Emissions SystemGeneralOpen17.Vacuum and Vapor Hose Diagrams > Powertrain Management > Emission Control Systems > Exhaust Gas RecirculationGeneralOpen18.Vacuum and Vapor Hose Diagrams > Powertrain Management > Emission Control Systems > Positive Crankcase VentilationGeneralOpen19.Vacuum and Vapor Hose Diagrams > Powertrain Management > Emission Control Systems > System Diagram > Complete System SchematicGeneralOpen20.Vacuum and Vapor Hose Diagrams > Powertrain Management > Emission Control Systems > System Diagram > Control BoxGeneralOpen21.Vacuum and Vapor Hose Diagrams > Powertrain Management > Emission Control Systems > System Diagram > Fuel and Vapor Hose RoutingGeneralOpen22.Vacuum and Vapor Hose Diagrams > Powertrain Management > Emission Control Systems > System Diagram > Vacuum ConnectionsGeneralOpen23.Vacuum and Vapor Hose Diagrams > Powertrain Management > Fuel Delivery and Air InductionGeneralOpen24.Vacuum and Vapor Hose Diagrams > Powertrain Management > System Diagram > Complete System SchematicGeneralOpen25.Vacuum and Vapor Hose Diagrams > Powertrain Management > System Diagram > Vacuum ConnectionsGeneralOpen26.Complete System SchematicPowertrain ManagementOpen27.Computers and Control Systems — Diagnostic Aids > Continuity and Resistance CheckPowertrain ManagementOpen28.Computers and Control Systems — Diagnostic Aids > Damage Precautions > Electrical Precautions > Battery PrecautionsPowertrain ManagementOpen29.Computers and Control Systems — Diagnostic Aids > Damage Precautions > Electrical Precautions > Electrical Connections and CircuitsPowertrain ManagementOpen30.Computers and Control Systems — Diagnostic Aids > Damage Precautions > Electrical Precautions > Electronic Component HandlingPowertrain ManagementOpen31.Computers and Control Systems — Diagnostic Aids > Damage Precautions > Electrical Precautions > Electronic Component ReplacementPowertrain ManagementOpen32.Computers and Control Systems — Diagnostic Aids > Damage Precautions > Electrical Precautions > Electrostatic DischargePowertrain ManagementOpen33.Computers and Control Systems — Diagnostic Aids > Damage Precautions > Proper Tools and Testing ProceduresPowertrain ManagementOpen34.Computers and Control Systems — Diagnostic Aids > Finding Short CircuitsPowertrain ManagementOpen35.Computers and Control Systems — Diagnostic Aids > Five Step TroubleshootingPowertrain ManagementOpen36.Computers and Control Systems — Diagnostic Aids > Troubleshooting PrecautionsPowertrain ManagementOpen37.Computers and Control Systems — Diagnostic Aids > Troubleshooting Tests > Testing For A Short With A Self-Powered Test Light or DVOMPowertrain ManagementOpen38.Computers and Control Systems — Diagnostic Aids > Troubleshooting Tests > Testing For a Short With a Short Circuit Locator (Short Finder)Powertrain ManagementOpen39.Computers and Control Systems — Diagnostic Aids > Troubleshooting Tests > Testing For Voltage Drop/Short to Ground With Test Light/DVOMPowertrain ManagementOpen40.Computers and Control Systems — Diagnostic Aids > Troubleshooting Tests > Testing For Voltage/ContinuityPowertrain ManagementOpen41.Computers and Control Systems — Diagnostic Aids > Voltage CheckPowertrain ManagementOpen42.Computers and Control Systems — Diagnostic Aids > Wire Repair Procedures > Circuit Protection DevicesPowertrain ManagementOpen43.Computers and Control Systems — Diagnostic Aids > Wire Repair Procedures > Repairing ConnectorsPowertrain ManagementOpen44.Computers and Control Systems — Diagnostic Aids > Wire Repair Procedures > Splicing Copper Wire Using Crimp and Seal Splice SleevesPowertrain ManagementOpen45.Computers and Control Systems — Diagnostic Aids > Wire Repair Procedures > Splicing Copper Wire Using Splice ClipsPowertrain ManagementOpen46.Computers and Control Systems — Diagnostic Aids > Wire Repair Procedures > Splicing Twisted/Shielded CablePowertrain ManagementOpen47.Computers and Control Systems — Diagnostic Aids > Wire Repair Procedures > Terminal RepairPowertrain ManagementOpen48.Computers and Control Systems — Diagnostic Aids > Wire Repair Procedures > Typical Electrical RepairPowertrain ManagementOpen
Exact Vehicle Hub
Browse →OEM Manual Evidence
Browse →1991 Acura NSX Application and IDOEM Manual
Repair and Diagnosis: Application and ID — 1991 Acura NSX V6-3.0L DOHC Service Manual | Operation CHARM Operation CHARM : Car repair manual...
1991 Acura NSX How to Find Technical Service Bulletins by Category/SymptomOEM Manual
How to Find Technical Service Bulletins by Category/Symptom — 1991 Acura NSX V6-3.0L DOHC Service Manual | Operation CHARM Operation CHARM...
1991 Acura NSX Application and IDOEM Manual
Repair and Diagnosis: Application and ID — 1991 Acura Legend Sedan V6-3206cc 3.2L SOHC FI Service Manual | Operation CHARM Operation CHARM...
1991 Acura NSX Application and IDOEM Manual
Repair and Diagnosis: Application and ID — 1991 Acura Integra L4-1834cc 1.8L DOHC FI Service Manual | Operation CHARM Operation CHARM : Car...
Repairs That Intersect This Wiring
Browse →Likely Trouble Codes for This System
Browse →P0301: Cylinder 1 Misfire DetectedCode
Ignition code commonly seen during engine management diagnosis.
P0030: HO2S Heater Control Circuit (Bank 1, Sensor 1)Code
Emissions code commonly seen during engine management diagnosis.
P0300: Random/Multiple Cylinder Misfire DetectedCode
Ignition code commonly seen during engine management diagnosis.
P0351: Ignition Coil A Primary/Secondary CircuitCode
Ignition code commonly seen during engine management diagnosis.
P0352: Ignition Coil B Primary/Secondary CircuitCode
Ignition code commonly seen during engine management diagnosis.
P0353: Ignition Coil C Primary/Secondary CircuitCode
Ignition code commonly seen during engine management diagnosis.
More NSX Wiring Pages
Starter Wiring DiagramAlternator Wiring DiagramHeadlight Wiring DiagramABS Brake Wiring DiagramA/C & Heater Wiring DiagramPower Window Wiring DiagramInstrument Cluster Wiring DiagramWiper & Washer Wiring DiagramTransmission Wiring DiagramCruise Control Wiring DiagramAirbag SRS Wiring DiagramBody Electrical Wiring Diagram
Same System, Other Vehicles
1990 Acura Integra Engine Management Wiring Diagram1990 Acura Legend Engine Management Wiring Diagram1993 Acura NSX Engine Management Wiring Diagram1993 Acura Vigor Engine Management Wiring Diagram1996 Acura RL Engine Management Wiring Diagram1996 Acura TL Engine Management Wiring Diagram2002 Acura CL Engine Management Wiring Diagram2005 Acura RSX Engine Management Wiring Diagram