How to fix P0304 | Cylinder-4 Misfire Detected

Struggling with a P0304 error code? 🚨 The P0304 code stands for Cylinder -4 Misfire Detected, indicating your engine is misfiring on cylinder 4. 📖 Read more about P0304: https://obdcode.org/p0304/ 📖 Read our book on Car Sensors: How To Diagnose Them: https://amzn.to/4sSeCmy 📖 Check out my Car Sensor Guide: https://obdcode.org/car-sensors-expla... 🔧 Watch Next: ▶︎ Car Dashboard Warning Lights: What They Mean & What To Do:    • Car Dashboard Warning Lights: What They Me...   ▶︎ How To Reset OBD Codes? OBD 2 Scanner: https://amzn.to/4c1jtZj In this video, we’ll explain what P0304 means, its causes, and how you can fix it to restore your engine’s performance. 🔍 What is P0304? Learn the meaning behind this trouble code and its impact on your engine’s operation. ⚠️ Why Does P0304 Get Triggered? Discover the factors that lead to random or multiple cylinder misfires and why your Check Engine Light is on. 🔧 Why Do Misfires Happen? We’ll discuss common scenarios that cause misfires, from air-fuel mixture issues to ignition system problems. 💡 Common Root Causes of P0304: 1️⃣ Vacuum Leaks – Leaks disrupt the air-fuel ratio, causing misfires. 2️⃣ Dirty Throttle Plate – A buildup can reduce airflow, leading to combustion problems. 3️⃣ Torn Head Gasket – Allows coolant or oil into the combustion chamber. 4️⃣ Dirty MAF Sensor – Provides incorrect air readings, affecting fuel injection. 5️⃣ Bad Spark Plug – Worn plugs cause weak or no sparks. 6️⃣ Faulty Oxygen Sensor – Incorrect data leads to improper fuel mixture. 7️⃣ Faulty Camshaft or Crankshaft Sensors – Disrupts engine timing and ignition. 8️⃣ Faulty Fuel Pressure Regulator – Impacts fuel delivery and pressure. 9️⃣ Clogged or Faulty Fuel Injectors – Poor fuel atomization causes misfires. 🔟 Spark Plugs and Ignition Coils – Faulty components disrupt the ignition process. 1️⃣1️⃣ Loose Timing Chain or Timing Belt – Affects synchronization of engine components. 🔧 How to Fix P0304: ▶︎ Inspect and fix vacuum leaks. ▶︎ Clean the throttle plate and MAF sensor. ▶︎ Replace faulty spark plugs, ignition coils, or sensors. ▶︎ Test and replace clogged fuel injectors or fuel pressure regulators. ▶︎ Address head gasket or timing chain issues. 👨‍🔧 Watch the full video for a step-by-step guide to diagnosing and resolving the P0304 code. Don’t forget to like, subscribe, and share for more car repair tips! 🚗 #P0304 #EngineMisfire #CheckEngineLight #CarRepair #diycarfix Chapters: 00:00 - Intro 00:13 - What is P0304? 00:54 - What triggers P0304? 01:45 - Why Do Misfires Happen? 02:06 - Possible Root causes of P0304