# RFECU Performance 2.0

> Motorcycle engine tuning and diagnostics via Bluetooth. (iPhone/iPad app by Release Force Limited Company.)

- Source: https://appshunter.io/ios/app/rfecu-performance-20/id1456714022 (this page in markdown: same URL + `.md`)
- Developer: [Release Force Limited Company](https://appshunter.io/developer/1326034139)
- Category: Utilities
- Price: $26.99
- Age rating: 4+
- Requires: iOS 12.0 · 22 MB
- Languages: American English, Chinese (Traditional, Taiwan)
- Released: 2019-03-23
- Data updated: 2026-09-10
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/rfecu-performance-20/id1456714022/reviews.md

## What is RFECU Performance 2.0?

透過藍芽連接器與噴射機車電腦做溝通, 可以達到以下功能：

1. 電腦調整:
- 噴油: -100% ~ +100%
- 點火: -30 degCRK ~ +60 degCRK
- O2範圍: 可依照油門開度及轉速設定O2運轉於開/閉迴路
- 可變進/排氣閥: 可依照油門開度及轉速設定可變進/排氣閥門運轉於開/閉迴路

2. 快速模式:
- 一鍵可快速切換至不同模式, 包含噴油, 點火, O2, 可變進/排氣一鍵快速切換.

3. 故障碼
- 故障碼顯示, 故障內容及排除指示, 故障碼清除

4. 引擎參數顯示及紀錄分析
- 可同時顯示超過60幾個引擎參數內容
- 可繪製成曲線圖顯示參數變化
- 可錄製下所有60幾個參數事後調出檔案進行曲線圖分析

5. 原廠電腦亦支援上述 故障碼 及 引擎參數顯示及紀錄分析 功能

## Key features

- Bluetooth engine connection
- Fuel injection adjustment
- Ignition timing control
- O2 sensor range settings
- Quick mode switching
- Diagnostic trouble code display and clearing
- Real-time engine parameter monitoring
- Historical data analysis

## Recent user reviews (5 of 5)

All indexed reviews: https://appshunter.io/ios/app/rfecu-performance-20/id1456714022/reviews.md

### 2/5 — 還不錯

*2024-07-29, version 2.7*

功能該有的都有，希望介面可以在用的更好看一點，現在的介面看起來有的陽春

### 4/5 — 閃退問題

*2021-09-17, version 2.1.3*

App會經常閃退，麻煩請修正，也希望紀錄檔可以自動存檔才不會閃退後都沒有紀錄的資料。

### 5/5 — 全取代電腦診斷器 西門子電腦救星

*2020-12-24, version 2.0.7*

目前先買診斷器使用，等到原廠ECU真正壞掉再來改全取代電腦使用，診斷器APP雖然有點貴但很超值可以取得原廠電腦60項數據，避免被車行騙說要做大保養之類的，用科學角度了解噴射機車🛵
期待下一次APP更新有數據顯示紅字功能及說明正常值與上限下限。

### 2/5 — 也是一直閃退希望能儘快解決畢竟這app不便宜

*2019-05-30, version 1.1*

可以看很多數據但沒像汽車OBD2那麼好且價格不便宜，但是會閃退是最大問題。希望工程師盡快解決閃退的問題。

### 5/5 — 推推

*2019-05-04, version 1.0*

6s 開啟紀錄檔會閃退，使用時也偶爾閃退希望能改善

## Frequently asked questions about RFECU Performance 2.0

### What can RFECU Performance 2.0 adjust on my motorcycle's engine?

RFECU Performance 2.0 allows you to adjust fuel injection by -100% to +100% and ignition timing from -30 degCRK to +60 degCRK. It also enables setting the O2 sensor range and variable intake/exhaust valves based on throttle and RPM.

### Does RFECU Performance 2.0 support quick mode switching?

Yes, RFECU Performance 2.0 features a 'Quick Mode' function that allows you to switch between different settings for fuel injection, ignition, O2, and variable valves with a single tap.

### Can RFECU Performance 2.0 help with engine troubleshooting?

Absolutely. The app can display diagnostic trouble codes, provide information on the fault content, offer troubleshooting instructions, and clear the codes. It also supports these functions for the original factory computer.

### How does RFECU Performance 2.0 help analyze engine parameters?

RFECU Performance 2.0 can display over 60 engine parameters in real-time, plot them as curves to show changes, and record all parameters for later analysis. This allows for in-depth performance review.

### What devices is RFECU Performance 2.0 compatible with?

RFECU Performance 2.0 is available for iPhone, iPad, and iPod. It requires a Bluetooth connector to communicate with the motorcycle's engine computer.

### How often is RFECU Performance 2.0 updated?

The latest version of RFECU Performance 2.0 is 2.7, which was last updated on July 6, 2022. This indicates a moderate update frequency, with the app receiving attention for improvements and bug fixes.

### What is the price of RFECU Performance 2.0?

RFECU Performance 2.0 is a paid application, with a price of $26.99. This one-time purchase grants access to all its tuning and diagnostic features.

### Does RFECU Performance 2.0 have ads?

No, RFECU Performance 2.0 does not contain advertisements. As a paid application, it provides an ad-free experience for users focused on engine tuning and diagnostics.

## Version history (last 5 releases)

### 2.0.1 — 2026-09-08

1. 新增京濱系統
- CO調整功能, 包含光陽與三陽.(2代, 4代ECU)
- 油門重置(TPI), 三陽(四代ECU)
2. 新增馬牌M3A 
- CO調整功能, 軟體版本需>QS1500
3. 新增紀錄檔
- 修改名稱
- 刪除
- 分享

### 2.7 — 2022-07-06

1. 更新icon名稱
2. 延長連線等待時間, 避免出現fail request seed.
3. 修正噴油及點火調整上下限值.

### 2.6 — 2022-07-01

1. 更新icon名稱
2. 延長連線等待時間, 避免出現fail request seed.

### 2.5 — 2022-06-15

1. 支援OBD ECU
2. 新增GPS車速, 儀錶版功能

### 2.1.3 — 2021-07-03

1. 相容新舊版藍芽連接器
2. 修正折線圖游標過大問題
3. 修正"模式選擇"下點火角異常問題
4. 修正電腦調整初始頁面數值設定
5. 更改"模式選擇"數值設定.

1. Compatible with both new and old version Bluetooth adapters.
2. Correct the logged data cursor size too big issue. 
3. Correct the ignition Angle display issue under "Mode selection"
4. Correct the initial value under ECU adjustment mode.
5. Update the setting values of "Mode selection".

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-10.*