Instructor John Thornton presents this in depth comprehensive case study of a 2002 Ford Explorer 4.0L vin E with a misfire at idle speed. John details the use of his scope and pressure transducer to perform a cranking compression test and goes on to point out the various indicators you should be watching your scope pattern for and how to identify problems.
This clip is an excerpt from the 270 minute comprehensive “In Cylinder Pressure Transducer Diagnostics” training program with Dave Hobbs, available from Automotive Video.