In this tip clip instructor John Thornton will present some ‘need-to-know’ info about some common function found on your PicoScope. John covers things such as vertical scale (number of volts per division), horizontal scale (the base time of the sweep speed), and trigger.
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.
John Thornton discusses a case study about a high milage 1997 Chrysler Concorde with rough idle issues. The vehicle has no codes and the coil, plugs and wires have all been recently replaced. John goes into great detail on how he went about diagnosing the problem by using scan data and waveform analysis.