# 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

## Details

- **Price:** 900.0 AUD
- **Vendor:** Sawley's Auto and Marine
- **Tags:** Sawley’s AAM Used Parts – Electronic Components | ECU CDI & Electrical Parts

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 900.00 AUD | In stock |

## Images

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

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/68f-8591a-30-00-f8t93081-yamaha-ecu-150hp-175hp-200hp-hpdi-genuine-used-part)
> Updated: 2026-06-29