34750-ZVJ-902 Honda ECU | Genuine Used Part

🔧 Product Description

Genuine Honda BF200D Electronic Control Unit - Part Number: 34750-ZVJ-902

A genuine used Honda Marine engine control unit for early-production BF200D four-stroke outboards.

The ECU processes sensor inputs and controls electronic fuel injection, ignition timing, idle operation, engine protection, charging coordination and diagnostic functions.

⚙️ Key Features

• Genuine used Honda Marine ECU
• Correct part number 34750-ZVJ-902
• Calibrated for early-production BF200D engines
• Applies through engine serial number 1004021
• Current replacement chain ends at 34750-ZVJ-904

🚤 Compatibility

Commonly used on

• Honda BF200D electronic fuel-injection and ignition systems
• Early-production BF200D mechanical-control engines

Typically suits

• Engine models:
• Honda BF200D LRA
• Honda BF200D XRA
• Honda BF200D XCRA
• Honda BF200D model-family applications specifying ECU 34750-ZVJ-902
• Engine serial range 1000001 to 1004021
• HP Range: 200HP
• Engine Type: Honda BF200D V6 EFI four-stroke outboard
• Year Range: Early BF200D production, serial-number controlled

🔌 Function

The ECU calculates fuel quantity and ignition timing while monitoring throttle position, manifold pressure, temperature, crank position, cam position, oxygen feedback and engine-protection inputs.

⚠️ Common Signs of Failure

• Engine cranks but will not start
• Fuel injectors or ignition coils do not receive command signals
• Engine enters reduced-power protection mode
• Intermittent stalling or loss of throttle response
• Diagnostic communication with the ECU is unavailable
• Sensor-reference voltage is missing
• Internal ECU faults return after wiring and sensor testing
• Replacement ECU has the wrong calibration or serial application

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 34750-ZVJ-904 → Supersedes 34750-ZVJ-903
• 34750-ZVJ-903 → Supersedes 34750-ZVJ-902
• 34750-ZVJ-902 → Supersedes 34750-ZVJ-901
• 34750-ZVJ-901 earlier OEM ECU reference

OEM / Related Numbers

• 34750-ZVJ-902
• 34750ZVJ902
• 34750-ZVJ-901
• 34750-ZVJ-903
• 34750-ZVJ-904
• 34754-ZVL-000 related ECU case
• 90015-ZVL-010 related mounting bolt

Aftermarket / Verified Equivalents

• No aftermarket equivalent

📦 Condition

• Genuine used part
• Removed from running engine where applicable
• In good working condition unless otherwise stated