https://stream.echo6.co/videos/watch/763c773b-8b71-465f-88a8-5cb22db92b51 For More Info visit us at: https://1aau.to/h-iWc Is your car running rough or idling poorly? In this video, we break down how to diagnose a running condition and pinpoint exactly why your engine isn't performing at its best. We’ll walk through the four essential things every engine needs to run smoothly: air, fuel, spark, and compression. Using a real-world misfire example, we show you how to read engine codes, perform a visual inspection, and test critical components like ignition coils, spark plugs, and intake gaskets. Whether it's a simple fix or a deeper mechanical issue, this guide will help you think like a mechanic and get your vehicle back on the road. Need new ignition or fuel components for your repair? Head over to 1AAuto.com using the link at the top of this description to find the right parts for your vehicle! 0:00 - Introduction to Rough Running Engines 0:16 - Using a Scan Tool to Read Engine Codes 0:57 - The 4 Essentials: Air, Fuel, Spark, & Compression 1:53 - Inspecting Ignition Coils, Connectors & Spark Plugs 3:39 - Air Flow & Intake Manifold Gaskets 4:48 - Diagnosing Fuel Injector Issues 5:39 - Understanding Engine Compression & Mechanical Timing 🔧 List of tools used: • Flat Blade Screwdriver • Phillips Head Screwdriver • Complete Metric Socket Set • Pliers • Ratchet • Scan Tool • Pick https://1aau.to/oayV-1AXAA00037 • Spark Plug Socket Subscribe: https://www.youtube.com/channel/UCVvE8kQTuZEykvMFZBVzftg?sub_confirmation=1 Check out our playlist: Tips & Secrets only Mechanics Know: https://www.youtube.com/playlist?list=PL37d7oWG6wDDqLG8BNFCEkbXEomZk1ITM 📱 Download the 1A Auto Repair App for more videos, torque specifications, and car repair information: https://1aau.to/appdownloadyt 🚗 For More Info visit us at https://1aau.to/h-iWc ⚠ DISCLAIMER: While 1A Auto strives to make the information provided in this video as accurate as possible, it makes no claims, promises, or guarantees about the accuracy, completeness or applicability of the content. No information contained in this video shall create any expressed or implied warranty or guarantee of any particular result. All do-it-yourself projects entail some risk. It is the sole responsibility of the viewer to assume this risk. 1A Auto is not responsible or liable for any loss damage (including, but not limited to, actual, consequential, or punitive), liability, claim, or any other injury or cause related to or resulting from any information posted in this video. Wed, 10 Jun 2026 10:16:10 GMT https://validator.w3.org/feed/docs/rss2.html PeerTube - https://stream.echo6.co https://stream.echo6.co/client/assets/images/icons/icon-512x512.png https://stream.echo6.co/videos/watch/763c773b-8b71-465f-88a8-5cb22db92b51 All rights reserved, unless otherwise specified in the terms specified at https://stream.echo6.co/about and potential licenses granted by each content's rightholder.