P0171 – System Too Lean (Bank 1) - Mechanic Base
2023年3月17日 · The P0171 code indicates that the oxygen (O2) sensor on bank 1 sent a signal to the engine control module that the air-fuel mixture is too lean to be corrected. The O2 sensors have the ability to correct a fuel mixture of +-15%.
P0171 Code? Here’s How to Fix It – Quickly and Easily
2024年11月23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 P0171 code include vacuum leaks, faulty oxygen sensors, clogged fuel filters, and malfunctioning mass airflow sensors or fuel injectors.
P0171 code – System Too Lean Bank 1 - Meaning, Causes, …
2024年10月21日 · 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.
How to Fix P0171 Code - Symptoms, Diagnosis, and Repair Tips
2022年5月25日 · What Does Code P0171 mean? “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.
OBD-II DTC: P0171 System Too Lean (Bank 1) - OBD-Codes.com
Basically this means that an oxygen sensor in bank 1 has detected a lean condition (too much oxygen in the exhaust). On V6/V8/V10 engines, Bank 1 is the side of the engine that has cylinder #1. The P0171 is one of the more common trouble codes. This code is triggered by the first downstream (front) O2 sensor.
P0171 Code - Fuel Trim System Lean Bank 1 - Engine-Codes.com
The P0171 code means that more air than gasoline is detected in the exhaust gases exiting the combustion chamber. If the P0171 is set in along with the P0174 code, it is highly likely that the problem is caused by an intake leak.
P0171 & P0174 Trouble Codes - Diagnosis, Causes, Symptoms ... - AutoZone
When your powertrain/engine control module receives a reading that indicates there’s too much oxygen and the ratio is incorrect, it sends an error code P0171 or P0174. Depending on the problem, it may send both codes if the issue is causing a lean condition on both engine banks.
Understanding the P0171 Code: Causes and Solutions
2018年1月6日 · What is the P0171 Code in plain-speak? In simple terms, it means that the engine is getting either too much air and/or too little fuel compared to the ideal air-to-fuel ratio of around 14.7:1 (air-to-fuel ratio).
P0171 Code - What It Means, Can You Drive, How To Fix - Fixd App
2024年7月15日 · P0171 Code: System Too Lean (Bank 1) caused by a faulty oxygen sensor, fuel pressure regulator, MAF sensor, fuel filter, fuel injector, or fuel pump.
P0171 Code Causes and Fixes - YOUCANIC
2024年12月18日 · Overview of how to inspect, diagnose, and repair the causes of a P0171 fault code. What does the P0171 code mean? The P0171 code is set when the first bank of the engine is lean. A “lean” condition is caused by too much air or insufficient fuel in the fuel-air mixture. Fault code P0171 usually occurs when a vacuum leak or the fuel system is weak.