2020年6月14日 · What are the common symptoms of OBDII code P0511 (Idle Air Control Circuit Malfunction)? Symptoms may include rough idling, stalling at idle, fluctuating idle speed, and potential difficulty starting the engine.

2023年8月25日 · What does the P0511 code mean? The P0511 code is a diagnostic trouble code that indicates a malfunction in the Idle Air Control (IAC) circuit. The IAC system is responsible for regulating the engine’s idle speed by controlling the amount of air that enters the engine when the throttle is closed.

When your OBD-II equipped vehicle exhibits a malfunction indicator lamp (MIL) and a stored code P0511, it means that the powertrain control module (PCM) has detected a problem with the intake idle air control (IAC) circuit. If there are other, more specific, IAC codes these must be diagnosed and repaired first.

2017年7月3日 · P0511故障码，适用于所有汽车制造商，意思是怠速空气控制电路(Idle Air Control Circuit)。 提示：快速查找故障码，可以关注“ 车主指南 ”公众号，回复故障代码，如：“ P0511 ”，即可获得对应故障码解释和解决方案。

2022年10月6日 · Code P0511 is commonly caused by a failed idle air control valve, engine vacuum leaks, or carbon buildup on the throttle body or air control valve. Symptoms of code P0511 include a lit check engine light, high engine RPM when idling, and a stalling engine.

P0511 means that there exists an abnormal condition in the RPMs when the engine is idling due to faulty valves, electrical wiring, or a severe leak.

2019年9月25日 · What Does Code P0511 Mean? Idle air control does just as its name suggests and controls the idle by allowing a certain amount of air to enter the engine. This keeps the idle at a specific RPM, and helps the engine to run better, and last longer.

2020年2月16日 · 当配备 OBD-II 的车辆出现故障指示灯 (MIL) 和存储代码 P0511 时，表示动力传动系统控制模块 (PCM) 检测到进气怠速空气控制 (IAC) 电路存在问题。 如果存在其他更具体的 IAC 代码，则应首先进行诊断和修复。 IAC 系统围绕一个线性执行器旋转，该线性执行器控制一个活塞，该活塞调节允许绕过节气门板并进入进气歧管的空气量。 控制绕过节气门板的空气量有利于控制发动机的怠速。 当节气门关闭（怠速）时，很少有空气可以通过节气门体进入发动机。 …

2020年6月14日 · The P0511 code is set when the Idle Air Control Valve (IACV) and Auxiliary Air Control (AAC) Valve does not operate properly. What are Code Possible Symptoms? Engine Light ON (or Service Engine Soon Warning Light)

2024年5月13日 · Understanding P0511: It indicates an Idle Air Control (IAC) Circuit Malfunction. Symptoms to Watch: Erratic idling, engine stalling, unusual idle speeds, and increased fuel consumption. Common Causes: Issues range from a faulty …