DIAGNOSTICS Mastering the Variables of Variable Displacement Engines 2/15/20, 8:30 - 11:30 a.m. Class #122, DeVos Gallery Overlook F To cope with increasing C.A.F.E. government mandates, automakers are utilizing more variable displacement engines with technology like the new Delphi ”Skip Fire” system, which constantly picks the right combination of cylinders to give the driver the perfect mix of power, economy, and engine smoothness. The course will educate you on these systems, covering their mechanical and hydraulic aspects, along with electronic engine controls. We’ll discuss how they work, common failures, and diagnostic tips to help you master the variables of variable displacement engines. What we’ll cover: • GMAFM, Chrysler/Dodge MDS and Honda VCM Operation • The brand-new GM DFM (Dynamic Fuel Management) • Service issues for variable displacement engine • Real-world bay testing that you can do NEW
Strategy Based Diagnostics 2/15/20, 8:30 - 11:30 a.m. Class #126, DeVos Grand Gallery B
The cars we repair and the systems they contain have changed drastically through the years. Is there really a “one size fits all” strategy we can use to diagnose codes and symptoms? We think there is. The goal of this class is to improve the aftermarket technician’s ability to successfully di- agnose a variety of vehicle faults. In this class, we will introduce strategies for diagnostic workflow. Then, we will follow working technicians across the US as they apply their techniques to diagnose vehicles and put their strategies to work. What we’ll cover: • Understand differential diagnosis • Learn improved methods to identify fuel control and misfire faults • Diagnose cam/crank correlation faults
• Diagnose communication faults • Diagnose engine mechanical faults • Learn a process for electrical diagnosis Presented By: SMP Speaker: Doug Montgomery
Presented By: Delphi Speaker: Dave Hobbs
Lab Scope Diagnostics 2/15/20, 1:30 - 4:30 p.m. Class #229, DeVos Grand Gallery E
In this class, we will cover the set-up and opera- tion of a lab scope for the purpose to test auto- motive sensors and components of various types. As the saying goes, “a picture is worth a thousand words.”We cover set up procedures, voltage and time base settings, and waveform capturing tech- niques. Waveforms captured frommany different component types are reviewed to differentiate ‘good’ and ‘bad’ waveforms. A color clinic book is provided, showcasing popular aftermarket lab scope waveforms for take-home reference. Presented By: DR1V Speaker: Dave Cerveny
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