汽车发动机故障码p0171，请问怎么处理？ P0171的含义是燃油调节系统混合气过稀。 当该类轿车出现故障,调得的故障代码是 P017l时,看起来故障内容比较明确,会认为检修起来也一定很容易,但要彻底解决该故障,却往往不是件

2023年3月17日 · A P0171 code appears in the engine control unit when the oxygen sensor on bank 1 recognizes too lean of an air-fuel mixture for the sensor to correct it. Several different things could cause this trouble code.

2022年5月25日 · “Code P0171 – system too lean bank 1” means there is too much oxygen or too little fuel in the exhaust, which is referred to as a “lean” condition, or a lean or “low fuel trim” code. This can be caused by something like a disconnected hose or vacuum leak, which means there’s more air than usual, or because your fuel system is weak.

2025年1月10日 · The P0171 code indicates a lean fuel mixture in the engine’s bank 1, which can cause reduced power, rough idling, and hesitation during acceleration. Common causes of the …

2024年9月2日 · What Does P0171 Bank 1 System Too Lean Mean? Encountering a P0171 Bank 1 System Too Lean error can be frustrating for vehicle owners and mechanics alike. This diagnostic trouble code (DTC) indicates that the engine’s air-fuel mixture is running leaner than expected, potentially affecting performance and fuel efficiency.

2025年2月12日 · What does the P0171 code mean? The P0171 code indicates that the engine control module (ECM) has detected a lean condition in Bank 1 of your vehicle. Essentially, this means there’s an imbalance between air and fuel entering the combustion chamber. When too much air enters and not enough fuel is supplied, it disrupts optimal engine performance.

2021年6月2日 · P0171 경고등이 뜨면 기본적으로 어딘가 공기가 새고 있을 가능성이 크다. 계산된 정확한 양의 연료와 흡입 공기가 만나서 정해진 타이밍으로 폭발을 해야되는데. 정해진 흡입 공기가 들어오지 않으니까 그 부족한 만큼 연료가 더 분사되는 것. (연료를 더 보정해주는 것) 어려운 점은..... 공기가 샐 가능성이 많다는 것이다. 호스나 밸브, 매니폴더 심지어 브레이크 부스터까지... 연결되어 있는 곳 어디든 샐 가능성이 있다. 게다가 미세하게 새면 잡기 매우 어렵다. 장기트림과 …

P0171 or P0174 readings indicate too lean of a system in one of your cylinder banks. Learn common causes and solutions to these trouble codes.

故障码 P0171 的含义 P0171 故障码，咱河南话里叫它“系统过稀”。 这意味着发动机的燃油混合气太稀了，可能会导致动力不

The P0171 code indicates that your engine is running too lean, meaning there’s too much air and not enough fuel. Common causes include a faulty MAF sensor, vacuum leaks, or fuel delivery issues. Symptoms include a check engine light, rough idling, and reduced engine performance.