Why is My Check Engine Light On?

The Toyota Tacoma had a P0455 — a large leak in the EVAP system — and I finally tracked it down! In this episode of The Man Garage, I battle sand, hoses, and an unhelpful AI assistant named MITT to fix one of the most annoying check engine lights ever: the EVAP leak. We’ll go through: 🚗 What causes EVAP codes like P0455, P0441, P0456, and P0497 💨 How the EVAP system works (and how it fails) 🧰 My step-by-step repair on the Tacoma’s charcoal canister and vapor hose 😅 A few bad jokes, an AI with an attitude, and a surprising amount of sand If your Toyota Tacoma, 4Runner, or Tundra has EVAP codes or a stubborn check engine light, this video will show you how to diagnose and fix it — without a trip to the dealership. ⭐ My Patreon! https://www.patreon.com/cw/MiketheBackyardMechanic 🛠️ Milwaukee Sawzall - https://amzn.to/491XbJ5 🛠️ Sawzall Blades https://amzn.to/4oRVd2o 🛠️ Sawzall Wood Blades https://amzn.to/4qGiO7R 🛠️ Milwaukee Cordless Ratchet https://amzn.to/4hEzZma 🛠️ Jack Pad https://amzn.to/3QuwXoY 🛠️ Floor Jacks https://amzn.to/46F1PbE 🛠️ Jack Stands https://amzn.to/3tHcX9z 🛠️ Chock Blocks https://amzn.to/3S9YA7R Many images used from Free Pik: https://www.freepik.com I get most of my sound effects from https://pixabay.com/ 00:00 Intro to Fixing the P0455 DTC 01:49 EVAP System Diagram 02:46 Causes of EVAP Emissions Problems 03:38 Diagnosing EVAP Emissions Problems 05:33 Removing the EVAP Canister 09:41 Fixing the EVAP Canister 11:15 Like this Video! 11:43 Results if the Repair 13:08 Conclusion Disclaimer! Mike does stuff to entertain you, not for you to try some of the stupid things he does and get you hurt. Formerly Mike the Backyard Mechanic. #humor #checkenginelight #emissions