Excerpt:

Want help with your diagnosis? Lab scopes will do it. (Most technicians don't know how much diagnosis you can do with an inexpensive scope and a few attachments.) This book will teach you how. Everything from relative compression with cranking amps, ignition primary and secondary on anything (even if you don't have the COP adapter and you're rusty with the ignition pattern anyway), and how do you use it for diagnosis. Also fuel pump intermittent diagnosis with current ramping, just to name a few. This is meant to open up a whole new world where you can see what the computer is seeing, really see it, or use transducers to see measurements you never thought possible. And we make it simple too.

This book is designed for the technician who has a basic understanding of a lab scope, knows how to get a basic pattern, what's normal, and how to effectively use the trigger. (If not, get my Introduction to Lab Scopes book.) This book is for advanced applications.

There's a whole new world of diagnosis out there… and we make it simple too.

We're going to explain these things:

		How does counter electromotive force change the amp output of a starter motor so you can see if each piston creates the same amount of compression? How do you trigger the event so you know which piston is the part that has low compression?

• How do you get an ignition voltage pattern from primary or secondary sources, even if you don't have all the right DIS or COP adapters.
• Review ignition patterns and string theory so you know how to apply what you are seeing.
• How to tell if the fuel pump caused the intermittent problem, or foretell the future and tell if a fuel pump will fail soon, even if it puts out OK now? (Yes, you usually can.)
• How can you use ignition current ramping to tell if it's a bad coil, bad module, or something else?

So hang on to your hats, here we go…

The book contains these chapters:

1. Relative Compression - Counter Electro-motive Force; To Measure Starter Current; High Amp Probe (or Current Clamp); Set Up Your Scope; How Do You Know Which Cylinder is Low?; Relative Compression Test.
2. Fuel Pumps -Low Amp Probes; Where to Attach the Current Probe; About Fuel Pumps; Fuel Pump Commutator Segments; Fuel Pump Brushes; Good Fuel Pump Pattern; Bad Fuel Pump Pattern; After Replacing the Pump.
3. Primary Ignition - How to Generate Spark; Capacitive Discharge System; Primary Wiring; 10:1 Filter; When You Hook Up Your Scope; What The Scope Pattern Means; Dwell or Saturation; Spark Duration; Using Spark Duration for Diagnosis; High Resistance; Low Resistance; RPM Probes; RPM Trigger; Primary Ignition Pattern; High Resistance Problem.
4. Primary Ignition Amperage or Current Ramping - Counter Electromotive Force (CEMF); Primary Ignition Volts; Primary Amperage; Computer Controlled Dwell; Low Current Probe; What To Look For; Normal Good Current Ramp; Possible Problems to Diagnose.
5. Secondary Ignition - High Voltage; Basic Secondary Ignition Pattern; Firing KV; String Theory; Open Spark Plug Wire; High KV; High Resistance Problems; Low KV; Low Resistance Problems; String Theory Example; Low Resistance; 10,000:1 Probe; Secondary Ignition Readings; Secondary Hookup; Voltage Between Probe and Ground; Using an Adapter; Using Adapters to Pick Up Signals; Foil Tape; "Right Side Up" Patterns; Pattern Points Down; Ignition Sparks Go Down; DIS Systems; Parade Patterns; Normal Engine; Low Resistance Problem; Parade Pattern of 4 Cylinder Engine.

To read a free sample excerpt from this book, click here.

Please note that this is an electronic book - a file that lives on the internet. It is cheaper than the printed version of the book. You can access it as soon as your order is complete, save it to your computer, print it out or look at it another day online.