The Right Way to Diagnose Catalytic Converter Efficiency Issues
In this Motor Age Tech Tips Short sponsored by Walker Products, Erik Screeden, technical and multimedia content director for Motor Age, takes a closer look at why a catalytic converter diagnosis should never end with simply swapping out the converter when a P0420 or P0430 DTC code appears. The video explains how both the oxygen sensor and air-fuel ratio sensor play critical roles in maintaining proper converter efficiency, and how sensor contamination or drift can lead to false codes and reduced performance. Viewers will learn why it’s essential to inspect and replace aged or sluggish sensors with Walker Products O2 sensors to ensure optimal performance and longevity.
Don’t just fix the symptoms, complete the repair correctly the first time. Watch the full Tech Tip Short to see how pros do it right. For more information, visit https://www.walkerproducts.com/automotive/.
About the Author
Erik Screeden
Technical and Multimedia Content Director
Erik Screeden is the Technical and Multimedia Content Director for the Vehicle Service & Repair Group. He has been in the automotive industry for over 25 years. During that time, Screeden was a technician. He started out at a Ford dealership and continued to several independent repair facilities as well as spent time in the specialty aftermarket where he had the opportunity to work at a GM-specific performance shop. After his time as a technician came to an end, Screeden transitioned into a role providing scan diagnostic and J2534 tool support. He was then able to parlay his experience as a technician and a support specialist and use that in several technical sales roles.
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