Tech Videos/EGR Jul 26, 2010 11:34 am Ignition and EGR Testing Tip Clip Share Tweet Print Email Mike Hobbs,subscriberView bio Bio Recent Posts Popular Posts Future Power Quick QuizDeceptive Diagnostics: Information Services Tip ClipBrake Systems Technology Quick QuizBrake Systems Technology: Scan Tool Diagnostics Tip ClipParasitic Current Draw Quick Quiz Using scope patterns, Jim Wilson discusses and demonstrates a procedure for diagnosing EGR related misfire issues by examining scope patterns of the different cylinders. Watch Now. Larry Great Tip! I need more videos on driviability tests and component test using the Genisys 3.0 Scope. What I mean is, when seating up different PIDs to test, for example, the Fuel Tank Pressure Sensor. I have a Gensysis 3.0 and I want to be able to use it to its full capacity.