# 68V-8591A-22-00 Yamaha ECU 115HP | Genuine Used Part

🔧 Product Description

  

Genuine Yamaha F115 ECU / Engine Control Unit - Part Number: 68V-8591A-22-00

  

A genuine Yamaha engine control unit for F115 / FL115 four-stroke outboards. This ECU manages the EFI fuel system, ignition timing, idle strategy, sensor monitoring and protection functions on compatible 115HP Yamaha engines using the 68V ECU calibration family.

  

⚙️ Key Features

  

• Genuine Yamaha ECU / engine control unit

• Correct Yamaha part number 68V-8591A-22-00

• Supersedes earlier 68V-8591A-20-00 engine-control-unit reference

• Used on F115AET and FL115AET electrical-system applications

• Must be matched by exact model code, ECU label, market code and engine serial number

  

🔄 Supersession & Cross Reference

  

OEM Supersession Chain:

  

• 68V-8591A-22-00 → Supersedes 68V-8591A-20-00

• 68V-8591A-21-00 related interim F115 ECU calibration reference

• 68V-8591A-20-00 earlier F115 ECU reference

  

OEM / Related Numbers:

  

• 68V-8591A-22-00

• 68V8591A2200

• 68V-8591A-22

• 68V-8591A-21-00

• 68V-8591A-20-00

• Related F115 ECU family reference: 68V-8591A-14-00

• Related F115 ECU family reference: 68V-8591A-11-00

• Related F115 ECU family reference: 68V-8591A-10-00

• Related F115 electrical-system reference family

  

Aftermarket / Verified Equivalents:

  

• No aftermarket equivalent

  

🚤 Compatibility

  

Commonly used on:

  

• Yamaha F115 / FL115 four-stroke EFI outboard engine-management systems

  

Typically suits:

  

• Engine models:

• Yamaha F115AET 2004 electrical-system applications using 68V-8591A-22

• Yamaha F115AET 2005 electrical-system applications using 68V-8591A-22

• Yamaha F115AET 2006 electrical-system applications using 68V-8591A-22

• Yamaha FL115AET 2004 electrical-system applications using 68V-8591A-22

• Yamaha FL115AET 2005 electrical-system applications using 68V-8591A-22

• Yamaha FL115AET 2006 electrical-system applications using 68V-8591A-22

• Yamaha F115 four-stroke 115HP applications where the ECU label and serial-numbered catalogue specify 68V-8591A-22-00

  

• HP Range: 115HP

• Engine Type: Yamaha F115 / FL115 EFI four-stroke outboard

• Year Range: 2004 - 2006 for the listed F115AET / FL115AET electrical-system entries

• Fitment Note: final fitment must be checked against the exact Yamaha model code and ECU calibration label

  

🔌 Function

  

The ECU controls EFI operation by processing sensor inputs and commanding fuel injection, ignition timing, idle speed, warning functions, diagnostic output and engine-protection response.

  

Common signs of failure:

  

• No-start after power, ground, fuel and ignition checks

• No injector pulse or missing ignition output

• No diagnostic communication

• Intermittent stalling or limp-mode activation

• Persistent ECU or sensor fault codes after harness testing

• Uneven idle, rich running or lean running caused by ECU output failure

• Heat, water or voltage-related ECU damage

  

📦 Condition

  

• Genuine used part

• Removed from running engine where applicable

• In good working condition unless otherwise stated

## Details

- **Price:** 500.0 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 | 500.00 AUD | In stock |

## Images

- 68V-8591A-22-00 Yamaha ECU 115HP | Genuine Used Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/68v-8591a-22-00-yamaha-ecu-115hp-genuine-used-part)
> Updated: 2026-06-29