Using A Scope To Diagnose Prevents Parts Swapping
Being able to use a scope allows you to make a more accurate diagnosis faster. It is a tool that can prevent that second call to a customer advising them the initial estimate did not work. It can also be a triage tool that can save you from having to remove plugs to perform a compression test or give additional evidence if a misfire is electrical or mechanical.
Coil On Plug Ignition: The Wired Differences
For late-model vehicles, the norm is one ignition coil per cylinder, commonly known as coil on plug. The task of providing voltage potential to each spark plug is performed so reliably that it’s easy to take for granted.
Pico’s Waveform Analysis, Search Feature Help To Validate Characteristics And Performance Of Complex Devices
DeepMeasure delivers automatic measurement of waveform parameters on up to a million successive waveform cycles.
VIDEO: Matching A Captured Waveform To The Correct Vehicle
Andrew Markel discusses how you can verify that a waveform you have captured is correct for the vehicle. Sponsored by ProDemand from Mitchell1.
Check Out The April Issue Of Underhood Service Magazine
The digital version of the April issue of Underhood Service is available on-line. Access the easy-to-view digital version that features articles on Oil and Direct Fuel Injection, A/C/ Season/ Motor Mount Replacement, Timing Chain and Belt Service, Fuel Injector Waveforms, Toyota TPMS, a host of Tech Tips, and more!
NGK Receives High Scores For CASE-Certified Training Courses
NGK’s CASE-certified course teaches technicians to diagnose emissions-related repairs more efficiently and accurately. This ultimately prevents comebacks, unhappy customers and high overhead costs for automotive repair shops.
Fuel Pump Diagnostics: Using Scan Tools
The most common diagnostic procedures for fuel pumps in the past were analog and hands on. Most fuel pump-related problems could be solved with a pressure gauge and voltmeter. Today, the scan tool is the most important tool when diagnosing a fuel supply problem.
General Technologies Offers Engine Ignition Analyzer
The GTC505 from General Technologies Corp. is a complete ignition system analyzer, compatible with all common types of spark ignition systems.
Variable Camshaft Timing And Back Pressure Issues
The variable “valve” timing that most of us see in our shops is actually variable “camshaft” timing that improves low- and high-speed torque by advancing or retarding the camshaft timing on single overhead camshaft (SOHC) engine applications.
Using Your Oscilloscope: Current Ramp Test Ignition Coils
The diversity of modern ignition coil designs has made ignition oscilloscope analysis more difficult because many ignition coil waveforms deviate from the conventional norm. Consequently, oscilloscope diagnosis shouldn’t be considered a definitive test of ignition coil condition unless it can be compared with a known-good waveform.
