In this episode of the Bumper to Bumper Podcast, hosts Dave Riccio, Co-Creator of Bumper to Bumper Radio and Jon Riggle break down one of the most common — and most misunderstood — reasons your check engine light might be on: the P0420 code.

Whether you've been quoted $3,000 for a new catalytic converter or you're wondering if a $69 aftermarket part from Amazon will do the trick, this episode dives deep into:

What a catalytic converter actually does (and how it works)

- Why the P0420 "catalyst efficiency" code is so common

- The difference between OEM vs. aftermarket converters

- The role of precious metals like platinum and rhodium (and why they drive theft)- When it’s worth paying more — and when it’s not

- How emissions testing and onboard diagnostics have changed

If you've ever heard "your cat is bad" and didn't know what that meant (or why it's so pricey), this episode will give you the clarity you need to make a smart, informed decision.

#catalyticconverter #p0420 #checkenginelight #bumpertobumperradio

Powered by Tri-City Transmission & Auto Repair