https://stream.echo6.co/videos/watch/f4518b4d-78f5-4519-95c4-d702acf4c430 In part two of this video series, I finish the repair on a customer’s 2014 Chevy Impala that set a P0411 trouble code. P0411 is a Secondary Air Injection System Incorrect Flow Detected code, which indicates the ECM is not seeing the expected exhaust oxygen change when the system is commanded on. After confirming the failure in part one, this video covers part of the repair, followed by proper verification to ensure the system is operating correctly and the fix is complete. No guessing, no parts darts, just a confirmed repair. Need access to wiring diagrams and repair info for your vehicle without breaking the bank? Use this link here to get affordable access to Mitchell On Demand DIY https://eautorepair.adtrk.biz/?a=11051&c=24&p=r&s1= Want to support us AND get early access to the SMA videos as they are uploaded? Consider joining the SMA "YouTube Membership" by clicking here: https://www.youtube.com/channel/UCtAGzm9e_liY7ko1PBhzTHA/join You are also able to support us on Patreon if you feel inclined to do so by clicking here: https://www.patreon.com/southmainauto CHECK OUT OUR "SMA SWAG" STORE! Go on Teespring and get your very own SMA merch! https://teespring.com/stores/the-sma-store If you don't like Patreon feel free to use the "PayPal Me" link: https://www.paypal.me/SouthMainAuto The South Main Auto Amazon Store: https://www.amazon.com/shop/southmainautorepairavoca AES Wave Automotive Diagnostic Tools: https://www.aeswave.com/cart.php?m=affiliate_go&affiliateID=2525b91fc8e906e8215984074c9d9e8f&go=https://www.aeswave.com/Miscellaneous-p9347.html Thank you so much for the support! -Eric & Vanessa O. Disclaimer: Due to factors beyond the control of South Main Auto Repair, we cannot guarantee against unauthorized modifications or improper use of the information provided in this video. South Main Auto Repair assumes no liability for property damage or personal injury resulting from the use of any tools, equipment, chemicals, lubricants, or information presented. We strongly recommend following safe practices when working with power tools, automotive lifts, jack stands, electrical equipment, blunt instruments, or any other tools and equipment shown or implied in this video. No information in this video creates any express or implied warranty or guarantees any particular result. Use this information responsibly and at your own risk. #ChevyImpala #P0411 #AutoRepair #VerifiedFix #SecondaryAirInjection #GMRepair #MechanicLife Mon, 13 Apr 2026 20:40:30 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/f4518b4d-78f5-4519-95c4-d702acf4c430 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.