Fuel Trims | Pro Training PowerHour

In this session of Pro Training PowerHour, SMP's Director of Training discusses fuel issues, input issues and air fuel ratio issues specifically using fuel trims. He takes a look at how fuel trims have adapted through the years and how you can use it to your diagnostic advantage. Chapters: 00:00: Introduction 01:22: Carburation 02:02: Throttle Body Injection 02:51: Port Injection 03:33: Gasoline Direct Injection 04:19: Initial Open Loop Fuel Calculation 05:20: Closed Loop Fuel Calculation 07:30: Typical Fuel Trim PIDs 08:43: Generic Trim Storage 10:14: Lambda 11:23: Fuel Trim Examples 13:32: Mapping Fuel Trim 16:12: Pirate Air Example 17:29: Alcohol or Low Fuel Volume 18:21: Small Vacuum Leak 19:53: Evaluating Fuel Trim 21:56: Post Catalyst Fuel Trim DTCs 22:38: Case Study: 2011 Chevy Tahoe 33:05: Session Recap 34:57: Community Questions Pro Training Power Hour is a free, live virtual technical series that features live demonstrations from Standard® Pro Trainers. Each session will provide you with a systems overview, diagnostic recommendations and installation tips. Register for the next PowerHour: http://www.ProTrainingPowerHour.com Watch previous sessions: https://youtube.com/playlist?list=PLWWJnrmo1YCAWCjjBSOO2Xr06ldY3FMSJ&si=2gN24jdgIPmIG7qU More Gasoline Direct Injection: https://youtube.com/playlist?list=PLWWJnrmo1YCAh9RZqfJksVoSKMN0NJiXL&si=VP-x9I7n4_et1Lcn More Gas Fuel Injection: https://youtube.com/playlist?list=PLWWJnrmo1YCDeBm81iHABKGFxBHD83n7z&si=0Xi_giNtuWk0JqEN To learn more, visit http://www.StandardBrand.com