Скачать или смотреть P0411 | p0411 secondary air injection system incorrect flow detected | code p0411 | p0411 obd2

P0411 | p0411 secondary air injection system incorrect flow detected | code p0411 | p0411 obd2

Hello friends welcome to the ig garage channel today I am telling you how to fix p0411 secondary air injection system incorrect flow detected so watch this video and learn how to fix it friends if you like this video then subscribe to the ig garage channel for more videos.

📺 Welcome to IG Garage!
In today’s video, we’ll decode OBD2 trouble code P0411, which means:
“Secondary Air Injection System – Incorrect Flow Detected.”

❓ What Does Code P0411 Mean?
The Secondary Air Injection (SAI) system reduces emissions by injecting fresh air into the exhaust during cold starts to help burn unburned fuel.

When the Engine Control Module (ECM) doesn’t detect the expected drop in oxygen levels via the O2 sensor readings, it sets DTC P0411 – indicating that the system’s airflow is insufficient or not reaching the exhaust.

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⚠️ Symptoms of P0411:
🚨 Check Engine Light

🌫️ Higher emissions

🧯 Rough idle on cold starts

💨 Unusual air pump noise

🛠️ Often no noticeable drivability issues

🔍 Common Causes:
💨 Air pump not working properly

🔧 Blocked or cracked hoses in the air system

❌ Faulty or stuck check valve

🔌 Blown fuse or bad air pump relay

🧠 Faulty ECM (rare)

🛠️ How to Fix Code P0411:
🔍 Check hoses and air lines for damage, blockages, or disconnection

⚙️ Test the air pump for proper operation

🔄 Replace faulty check valve

🔌 Inspect relay and fuse – replace if needed

🧠 Reset the code after repairs and test drive

📍 Location of Key Components:
Air Injection Pump – usually behind the bumper or low near the engine

Check Valve – between the pump and exhaust manifold

Relay/Fuse Box – under the hood near the battery

💰 Estimated Repair Cost (India):
🔄 Air Pump Replacement: ₹3,000 – ₹7,000

🔧 Hose/Valve Replacement: ₹500 – ₹2,000

🔌 Relay/Fuse: ₹100 – ₹400

👨‍🔧 Labor Cost: ₹800 – ₹1,500

🚨 Is P0411 a Serious Issue?
It won't cause immediate performance problems but may lead to failed emissions tests and is important for environmental compliance.

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📽️ Watch Next from IG Garage:
➡️ [P0410 – Secondary Air Injection System Malfunction]
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