Some of the most difficult diagnostic problems seem to involve vehicle computer operating strategies.

Welcome to the latest installment in our multi-part series on exhaust gas analysis.

Do you really know all the ins and outs of every system? Can you diagnose the really tough ones? If you can, do you know what is happening and why?

One of the joys of the lab scope is its simplicity. If you take away all the buttons and dials on an oscilloscope, it’s really just a voltmeter that allows us to look at voltage levels over time.