This is a critical thinking or logical approach class to address many of the issues that face techs every day; working on systems that are new to them or that they have little or no experience diagnosing. The course is a mix of critical thinking, theory, diagnostic testing methods, tooling and real world case studies. Four areas will be addressed: mechanical testing, fuel trim diagnostics, ignition testing and network communication issues. Graphing scan data, archiving data and other useful diagnostic software will be discussed. Lots of real world, not so forward case studies will be used to illustrate these processes and techniques.