這個碼是什麼意思？
P0171/P0172 對應第 1 汽缸列，P0174/P0175 對應第 2 汽缸列。過稀或過濃是控制器對混合氣的判斷，不直接表示某零件損壞。比較怠速及負載下燃油修正，檢查進排氣漏氣，依車型標準測試供油與感知器讀數。
來源與解讀範圍 [1]
故障碼描述偵測到的異常，不直接指定必須更換的零件。
原廠原文中的含義
原文含義可能隨車型與後綴變化。此處依來源顯示，不代表通用診斷結論。
P0174Rear/Front Bank Fuel System Too LeanP0174Fuel System 2/1 LeanP0174System Too Lean Bank 1/Bank 2P0174Fuel System 2/1 Lean原廠技術資料
171以下為英文原文
JEEP, RAM
原文故障碼 P0174-00
Disconnected Purge Line Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● P0300-00 - Multiple…
TOYOTA
原文故障碼 P017400
Some 2023 – 2024 model year Sequoia Hybrid and 2022 – 2024 model year Tundra and Tundra Hybrid vehicles may exhibit lack of power during acceleration and/or a MIL ON condition with one or more of the following…
JEEP
原文故障碼 P0174
Flash: Powertrain Control Module (PCM) Updates Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following Diagnostic Trouble…
TOYOTA
原文故障碼 P017400
TSB: Some 2023 model year Sequoia Hybrid and 2022 ? 2023 model year Tundra and Tundra Hybrid vehicles may exhibit poor acceleration and/or a MIL ON condition with one or more of the following Diagnostic Trouble Codes…
TOYOTA
原文故障碼 P0174
TSB: Some 2014 ? 2020 model year Toyota vehicles may exhibit a hard start and/or MIL ON condition with one or more of the following Diagnostic Trouble Codes (DTCs): ?DTC P0171 and/or P0174 (System Too Lean Bank 1/Bank…
LEXUS
原文故障碼 P0174
TSB: Some 2013 ? 2020 model year Lexus vehicles may exhibit a hard start and/or MIL ON condition with one or more of the following Diagnostic Trouble Codes (DTCs): ?DTC P0171 and/or P0174 (System Too Lean Bank 1/Bank 2)…
核對適用車輛
925車型關聯可作查閱線索；引擎、生產範圍與軟體條件請核對原廠資料。
| 品牌 | 車型 | 年式 |
|---|---|---|
| Acura | MDX | 2020 |
| Acura | MDX | 2019 |
| Acura | MDX | 2018 |
| Acura | MDX | 2017 |
| Acura | MDX | 2016 |
| Acura | RDX | 2020 |
| Acura | RDX | 2019 |
| Acura | RDX | 2018 |
| Acura | RDX | 2017 |
| Acura | RDX | 2016 |
| Acura | RLX | 2020 |
| Acura | RLX | 2019 |
更換零件之前
記錄故障碼與凍結資料，檢查電瓶狀態、相關故障碼和可見線束或軟管損傷。依該車診斷程序與測試結果決定維修，避免僅憑故障碼換件。
來源與解讀範圍
以下解釋由本站依所列原廠資料整理。頁碼從 PDF 檔案第一頁起算。原文為英文，譯文供參考；引用某版本不代表它是原廠目前最新指令。
- 2024–2025 MY OBD System Operation Summary for Gasoline Engines ↗
Ford Motor Company · PDF 頁碼 21, 22 ·
來源核對日期 · 2026-10-27
還能繼續駕駛嗎？
不能只憑故障碼判斷能否繼續行駛。故障燈閃爍、嚴重抖動、過熱、機油壓力警示或煞車轉向異常需立即注意。影響操控或引擎安全時，應在安全地點停車並求助。以車主手冊為準。