68F-8591A-30-00 F8T93081 Yamaha ECU 150HP 175HP 200HP HPDI | Genuine Used Part

🔧 Product Description

Genuine Yamaha HPDI ECU / Engine Control Unit - Part Number: 68F-8591A-30-00

A genuine Yamaha engine control unit for selected 150HP, 175HP and 200HP HPDI two-stroke outboards. This ECU manages the electronic fuel-injection, ignition, sensor input and engine-protection strategy on compatible Yamaha 2.6L V6 HPDI engines using the 68F ECU calibration family.

⚙️ Key Features

• Genuine Yamaha ECU / engine control unit

• Correct Yamaha part number 68F-8591A-30-00

• Mitsubishi module marking F8T93081

• Suits selected 150HP, 175HP and 200HP HPDI two-stroke V6 outboards

• Must be matched by exact part number, model code and ECU calibration before installation

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 68F-8591A-30-00 current service / replacement ECU reference

• 68F-8591A-20-00 related earlier HPDI ECU reference

• 68F-8591A-03-00 related earlier HPDI ECU reference

• 68F-8591A-02-00 related earlier HPDI ECU reference

• 68F-8591A-01-00 related earlier HPDI ECU reference

• 68F-8591A-00-00 earlier HPDI ECU reference

OEM / Related Numbers:

• 68F-8591A-30-00

• 68F8591A3000

• F8T93081

• 68F-8591A-20-00

• 68F-8591A-03-00

• 68F-8591A-02-00

• 68F-8591A-01-00

• 68F-8591A-00-00

• Related charge coil reference: 68F-81410-00-00

• Related injector driver / electrical reference: 60V-85580-10-00

• Related relay assembly reference: 68F-81960-03-00

• Related ignition coil reference: 68F-82310-01-00

Aftermarket / Verified Equivalents:

• No aftermarket equivalent

🚤 Compatibility

Commonly used on:

• Yamaha 2.6L V6 HPDI two-stroke outboard engine-management systems

Typically suits:

• Engine models:

• Yamaha Z150 HPDI 2.6L V6 applications using 68F-8591A-30-00

• Yamaha LZ150 HPDI 2.6L V6 applications using 68F-8591A-30-00

• Yamaha VZ150 HPDI 2.6L V6 applications using 68F-8591A-30-00

• Yamaha Z175 HPDI 2.6L V6 applications using 68F-8591A-30-00

• Yamaha LZ175 HPDI 2.6L V6 applications using 68F-8591A-30-00

• Yamaha VZ175 HPDI 2.6L V6 applications using 68F-8591A-30-00

• Yamaha Z200 HPDI 2.6L V6 applications using 68F-8591A-30-00

• Yamaha LZ200 HPDI 2.6L V6 applications using 68F-8591A-30-00

• Yamaha VZ200 HPDI / VMAX HPDI 2.6L V6 applications using 68F-8591A-30-00

• Yamaha Z200TLRZ 2001 HPDI electrical system using 68F-8591A-30-00

• Yamaha LZ150TXRZ 2001 HPDI electrical system using 68F-8591A-30-00

• HP Range: 150HP - 200HP

• Engine Type: Yamaha HPDI 2.6L V6 two-stroke outboard

• Year Range: approximately 2001 - 2003 for 68F-8591A-30-00 applications

• Fitment Note: ECU must be matched by exact Yamaha model code, engine serial, ECU label and installed calibration.

🔌 Function

The ECU controls the HPDI engine-management system by processing sensor inputs and commanding ignition timing, injector operation, fuel delivery, idle control, warning strategy and engine-protection functions.

Common signs of failure:

• No-start or hard-start condition after fuel, spark and sensor checks

• No injector pulse or inconsistent injector command

• No diagnostic communication with the ECU

• Intermittent shutdown, limp mode or erratic running

• Persistent ECU-related fault codes after wiring and sensor testing

• Engine running rich, lean or unevenly with verified fuel pressure

• Misfire or ignition timing faults isolated to ECU output control

📦 Condition

• Genuine used part

• Removed from running engine where applicable

• In good working condition unless otherwise stated