The Trainer #70 - EVAP Testing Tips

The purpose of the Evaporative Emissions system, lovingly referred to as “EVAP” by many of us, is pretty straight forward – keep the fuel vapors locked up and out of the atmosphere. Well, it sounds straight forward, but it can be a little overwhelming when it doesn’t work as it was designed to. The first order of business is to understand what type of system the vehicle in question is equipped with. Even if you work on only one model line, you are still faced with variations on a theme, so it is always an important first step to identify what kind of detection strategy is in play. For example, using pressure to test a system that the ECM uses vacuum to test could lead you to miss the mark. Handling EVAP DTCs related to component issues is also relatively straight forward. It’s locating the source of the “small leak detected” that can cause you to pull your hair out. In this edition of the Trainer, we’ll cover tips and techniques to help you quickly handle a variety of EVAP abnormalities, with a focus on finding those pesky leaks! Be sure and SUBSCRIBE to our channel so you'll be the first to know when new information is available! @@@ FOLLOW US ON @@@ Facebook:   / motoragemagazine   Twitter:   / motor_age   Instagram:   / motor_age   VISIT OUR WEBSITE! http://www.motorage.com TRAINING FOR PROFESSIONAL TECHNICIANS! Motor Age Training: http://www.passthease.com Motor Age Training Connect: https://connect.motoragetraining.com/ Click this link to subscribe to the print or digital edition of Motor Age! http://bit.ly/MotorAge_freesub_YT @@@@@@@@@@@@@@@@@ Due to factors beyond the control of Motor Age, it cannot guarantee against unauthorized modifications of this information, or improper use of this information. Motor Age magazine (UBM Americas - Automotive Group) assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. Motor Age 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 Motor Age, 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 Motor Age magazine or its corporate parent, UBM Americas.