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。
P0174System Too Lean Bank 1/Bank 2P0174System too Lean Bank 1/ Bank 2P0174System too Lean Bank 1/Bank 2P017400System Too Lean Bank 2原廠技術資料
11以下為英文原文
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…
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…
TOYOTA
原文故障碼 P017400
TT: Some 22MY Tundra/HV vehicles may experience a MIL ON w/DTC(s) P017400, P043000. Other symptoms of this issue include poor acceleration. A lean condition may cause damage to the internal catalyst in the catalytic…
TOYOTA
原文故障碼 P0174
TSB: REVISION NOTICE January 23, 2020 Rev1: G1439 The Parts Information, Calibration Information, and Repair Procedure sections have been updated. SUPERSESSION NOTICE The information contained in this bulletin…
TOYOTA
原文故障碼 P0174
TSB: SUPERSESSION NOTICE The information contained in this bulletin supersedes Service Bulletin No. T-SB-0058-13. Service Bulletin No. T-SB-0058-13 is obsolete and any printed versions should be discarded. Some 2009 ?…
核對適用車輛
17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 |
|---|---|---|
| Toyota | TUNDRA | 2024 |
| Toyota | TUNDRA | 2023 |
| Toyota | TUNDRA | 2022 |
| Toyota | TUNDRA | 2020 |
| Toyota | TUNDRA | 2019 |
| Toyota | TUNDRA | 2018 |
| Toyota | TUNDRA | 2017 |
| Toyota | TUNDRA | 2016 |
| Toyota | TUNDRA | 2015 |
| Toyota | TUNDRA | 2014 |
| Toyota | TUNDRA | 2013 |
| Toyota | TUNDRA | 2012 |
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。