P0312 | P0312 Cylinder 12 Misfire Detected | p0312 code | p0312 obd2 | dtc p0312

Описание: P0312 | P0312 Cylinder 12 Misfire Detected | p0312 code | p0312 obd2 | dtc p0312

Hello friends welcome to the ig garage channel today I am telling you how to fix P0312 Cylinder 12 Misfire 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 break down DTC Code P0312, which means a misfire has been detected in Cylinder 12. Learn how to identify, diagnose, and fix this issue before it causes serious engine problems.

❓ What is Code P0312?
P0312 – Cylinder 12 Misfire Detected
This code is triggered when the Engine Control Module (ECM) detects that Cylinder 12 is not firing correctly. This type of misfire can lead to engine roughness, poor fuel economy, and even long-term engine damage.

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⚠️ Note: Cylinder 12 is only present in V12 engines, commonly found in luxury or performance vehicles like BMW 760Li, Mercedes-Benz S600, Rolls-Royce, and certain supercars.

⚠️ Common Symptoms of P0312:
🚨 Flashing or steady Check Engine Light

💥 Engine shaking or vibrating

🐌 Reduced acceleration or power

🔊 Engine knock or ticking noise

📉 Poor fuel economy

🛑 Intermittent stalling or hesitation

🔍 Common Causes of P0312:
🔌 Worn or fouled spark plug in Cylinder 12

⚡ Faulty ignition coil or coil pack

💧 Dirty or clogged fuel injector

🔧 Vacuum leak near Cylinder 12

⚙️ Low engine compression

📟 Faulty crankshaft/camshaft sensor

💻 ECM/PCM software issue or internal failure

🛠️ How to Fix Code P0312:
🔧 Replace the spark plug in Cylinder 12

🔁 Swap ignition coil with another cylinder for testing

💧 Clean or replace the fuel injector

💨 Check for vacuum leaks

🧪 Run a compression or leak-down test

💻 Scan and update the ECM/PCM if needed

💰 Estimated Repair Cost (India):
Spark Plug: ₹200–₹500

Ignition Coil: ₹800–₹2,000

Fuel Injector Service: ₹1,000–₹3,000

ECM Diagnosis/Programming: ₹2,000–₹4,000

Diagnostics/Scan: ₹1,000–₹2,000

🚨 Why Fix P0312 Quickly?
If ignored, this misfire can damage the catalytic converter, increase fuel waste, and reduce engine performance. Addressing it early will save time, fuel, and future repairs.

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📽️ Watch More IG Garage Videos:
➡️ [P0311 – Cylinder 11 Misfire Detected]
➡️ [P0300 – Random/Multiple Cylinder Misfire Detected]

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