With the growth of new technologies, such as hybridization and active safety systems, the electronic content will only continue to increase. If independent garages are going to be able to repair these vehicles efficiently, the scope and power of the diagnostics tools and test equipment they use must match the complexity of these systems.


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With a presence in more than 150 countries, and a global network of over 2750 service centres, Delphi aftermarket provides OE specification end-to-end solutions from components to sophisticated software solutions.

Good C.O.P./Bad C.O.P. - Advanced Ignition Diagnostics

Our Good C.O.P. / Bad C.O.P. - Advanced Ignition Diagnostics course overviews advanced diagnostics of coil on plug ignition systems.
Part resource centre delphi training academy courses
Duration: 4 hours
Face to face Diagnostics & Test Equipment Ignition Gasoline Powertrain Training Series

Course Overview

Course number: SV22407

Your customer’s ignition system is the ‘heartbeat’ of their engine.  Are you the ‘heart doctor’ that you need to be to diagnose problems quickly and accurately?  Your father’s ‘big box’ engine analyzer may be obsolete on vehicles with C.O.P. (Coil On Plug) ignition systems but the advanced diagnostics it provided in its day can be easily replicated with some practical methods you may be overlooking.  

  • Audience
    All automotive aftermarket technicians
  • Skill level
    Intermediate to advanced
  • Prerequisites
    Proficiency with scan tool; understanding of OBD-II and vehicle ignition systems
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Part resource centre delphi training academy courses

This course includes:

  • Spark systems – ignition circuit review
  • C.O.P.s of every variety; 2-wire, 3-wire, and 4-wire
  • Meters and bench testing; what can we still do?
  • C.O.P. diagnostic feedback circuits
  • Scoping voltage and current; the “EKG and MRI” of ignition testing
  • Misfire madness: remembering the simple things that steal the spark
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