Catalytic converter test. How to check a catalytic converter to see if it's bad and needs replacement in your car, DIY with Scotty Kilmer. How to tell if your car's catalytic converter is bad. A simple test beats guessing with expensive parts. DIY car repair with Scotty Kilmer, an auto mechanic for the last 47 years. ⬇️Things I used in this video: 1. OTC Exhaust back pressure gauge: http://amzn.to/2nnY753 2. Mechanic’s Tool Set: http://amzn.to/2Bzmccg 3. Disposable Gloves: http://amzn.to/2zSRuxO 4. Common Sense 5. 4k Camera: http://amzn.to/2hZ4AxX 6. Mini Microphone: http://amzn.to/2newgV9 7. My computer for editing / uploading: http://amzn.to/2i2sKYz 8. Video editing software: http://amzn.to/2jv5Fhf 9. Thumbnail software: http://amzn.to/2k7tz6C 🛠Check out my Garage to see what I use every day and highly recommend: https://www.amazon.com/shop/scottykilmer ❗️Check out the Scotty store: https://goo.gl/RwhRGU 👉Follow me on Instagram for the latest news, funnies, and exclusive info / pics: https://goo.gl/ohy2cA If you liked this video, consider subscribing and press the bell Icon to get updated on the latest videos every week. And remember, every day (7 days a week), I upload a new video on the Scotty Kilmer Channel: https://www.youtube.com/user/scottykilmer Also, if you like my car help, be sure to watch my live car talk show, every Thursday afternoon at 1 CST and Saturday morning at 10 AM CST on YouTube. I answer your car questions LIVE there. Just check it out at: https://www.youtube.com/watch?v=yQtdBelbqdg Scotty Kilmer is a participant in the Amazon Influencer Program. #savagescotty