Catalytic Converter Diagnostics

SKU: 210825KRW

Please fill out the fields for each Webinar Attendee. You'll need to Add to Cart then click Add Another.
128 characters remaining
The link you have clicked on has expired. Please contact us at
(800) 233-3182 Ext. 325 to discuss other options that may be available.
Use coupon code CATCON at checkout when buying the manual
Add Another   Add Manuals to Cart

The manual is only available for purchase with this webinar.
The manual will NOT be for sale after 08/25/2021.

IMPORTANT: When you complete your purchase, the confirmation email for the webinar is sent to the attendee that was enrolled. Please have them check all spam, junk and promotion folders. It is best to use a personal email address as company addresses are very restrictive and may prohibit receipt of the webinar emails. If you have any issues, please contact: This email address is being protected from spambots. You need JavaScript enabled to view it.
Dates Wednesday, August 25 - Thursday, August 26 Add to Calendar
Time 5:30pm to 7pm Each Evening - Pacific Time
Place Wherever you are at!

Instructor Kris Lewis & Rick Kelley
Contact Heather Fitzgerald - (800) 233-3182 Ext. 325

Download Enrollment Form NOTE: Complete enrollment form and fax to (858) 486-8530

You may also like...


What this webinar is about...

MIL-related comebacks cost shops and technicians millions. Catalytic converters and related codes such as P0420 and P0430 top the list of expensive comebacks, and traditional diagnostics simply aren’t effective. Two solutions are required, and this webinar provides both of them:

  • Better Converter Tests: We test the converter the way the PCM does – using index ratio, switch ratio or oxygen storage capacity, and leveraging Mode $06 to track Monitor type and performance.
  • Ensuring Fuel Control: Converters cannot operate properly outside of a narrow window of fuel control, so we offer high level tests to verify the feedback loop and other engine management variables.

This webinar and optional manual cover field-proven diagnostic techniques for converters, but also for the engine management and fuel control necessary for a converter to work. Since non-converter faults often result in a P0420 and/or P0430, we first cover tests to verify that the converter gets a fair trial:

  • Engine Breathing Tests
  • Fuel Trim Analysis, including O2 & Air/Fuel Sensors
  • Locating Critical Exhaust Leaks
  • Isolating Cylinder Imbalance

Converter tests are discussed using a variety of common tools, leveraging PID graphing and Scan Tool controls to keep testing as non-invasive as possible. But we also cover more advanced tests using Lab Scopes and Gas Analyzers, so everyone leaves with tests they can perform regardless of tool availability. And it’s all backed up with case studies to prove that the tests work better than the traditional methods that have been taught since the 70s. Using this diagnostic flow, you’ll find converters that really don’t need to be replaced, and other faults that need repair to prevent damage a replacement converter!


Optional Manual
This webinar is based on an optional 134-page manual developed by ATG in cooperation with Walker Emissions Control. The manual covers all of the tools, tests, and case studies in the presentation, so it’s a great resource for reproducing the tests back in the shop. The manual also keeps you on a disciplined path so you will verify that each vehicle is operating well enough for converter operation before testing actual converter efficiency.

PLEASE NOTE: All webinar related sales are final. No refunds or exchanges.


Sign up to receive news of new titles and be notified when new training seminars will be conducted in your area.
Subscribe Now →

Automotive Training Group Logo


ATG Logo

Upcoming Classes

Check out what classes we already have on the schedule for the upcoming weeks.
Class Schedule →