https://stream.echo6.co/videos/watch/0ccc3eb0-e2c5-4fc6-b111-bc644058788a Using the smell of the exhaust on a vehicle that has a constant misfire can be a good indicator of direction. If the exhaust has a clean smell to it, then there is a good chance the misfire condition is being caused by an injector that is not opening. However there are variables to this test. Some systems will shut down a fuel injector in the presence of an ignition or compression misfire which will lead to a clean smelling exhaust. Use this test as a guide only and not a foolproof test. Here is a video that EricTheCarGuy and I did where I chose to start our troubleshooting process by monitoring tailpipe emissions. ETCG and ScannerDanner Solve A Misfire (Part 1) https://youtu.be/4yvg6uW8bRE, EricTheCarGuy and ScannerDanner Solve A Misfire (Part 2) https://youtu.be/DylOq484Tws, Engine Performance Diagnostics chapter 1 page 13 Topics covered misfire identification using tailpipe gases, what are Hydrocarbon emissions, no fuel misfire compared to a lean misfire, Tools used 5 gas analyzer, Playlist (Chapter 1) Misfire ID, Compression Tests, Vacuum Leaks, Fuel Trim, Head Gasket, Restricted Exhaust, Low Power, DMM https://www.youtube.com/playlist?list=PL5E3AEC36DB838BB1, Related videos Chevy 4.8 Oxygen Sensor Test (fixed rich signal P0172, P0175) https://youtu.be/H6lY42u19VM, O2 sensor testing (fixed rich), low power, misfire (Mitsubishi Eclipse) https://youtu.be/ClCuoi3JxEI, Stuck Open Fuel Injector (how to fix) https://youtu.be/jsl531-6q-A, For more information on this topic, I have written a “field manual” called Engine Performance Diagnostics which is available at www.scannerdanner.com as an eBook or paper book. Want even more diagnostic training? Whether you are a DIY trying to fix your own car, someone looking to become an auto technician, or a current auto technician that wants to get more into diagnostics, subscribe to ScannerDanner Premium https://www.scannerdanner.com/join-scannerdanner-premium.html There is a 14 day free trial. On ScannerDanner Premium I will bring you right into my classroom at Rosedale Technical College. You will find page for page lectures taken right from my book as well as exclusive classroom type case studies. What is so special about these classroom case studies? I pull live problem vehicles directly into my classroom and we troubleshoot them in real time, using and applying the theory and testing procedures we learn during the classroom lectures. There is no better on-line training of how to troubleshoot automotive electrical and electronics systems anywhere! Disclaimer: Due to factors beyond the control of ScannerDanner LLC, it cannot guarantee against unauthorized modifications of this information, or improper use of this information. ScannerDanner LLC assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. ScannerDanner LLC recommends safe practices when working with power tools, automotive lifts, lifting tools, jack stands, electrical equipment, blunt instruments, chemicals, lubricants, or any other tools or equipment seen or implied in this video. Due to factors beyond the control of ScannerDanner LLC, no information contained in this video shall create any express or implied warranty or guarantee of any particular result. Any injury, damage or loss that may result from improper use of these tools, equipment, or the information contained in this video is the sole responsibility of the user and not ScannerDanner LLC. Sun, 03 May 2026 09:53:14 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/0ccc3eb0-e2c5-4fc6-b111-bc644058788a 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.