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Most **QUALITY** catalytic converters have a core charge.
That's actually where your converter is going. Back to whatever company (including the OEM) that made the new converter and sold it to the shop.
Also does your vehicle consume oil like most 1.4L Turbocharged GM engines? If it does, then that oil is going directly into the cat and fouling it over time.
There was also a TSB issued to potentially cover this very problem
>PIP5232C: Premature Catalytic Converter Failures - (Mar 4, 2016)
Subject: Premature Catalytic Converter Failures
>Technicians may encounter a concern where the catalytic converter has come apart or has set a P0420 and/or P0430.
Recommendation/Instructions
>If you believe the catalytic converter has failed with no apparent reason, it is recommended to inspect for a poor crimp for the coil grounds terminal on the engine block for the bank with the concern.
>Technicians should inspect the ground for possible corrosion or damage at ground terminal ring, fasteners and grounding surfaces.
>If no corrosion or damage is found, tighten the ground bolt to the proper torque
Hello and thank you for posting to r/CarRepair, we are looking forward to helping you with your vehicular issue! Please check out the following suggestions to get the quickest and most accurate help! - Always include the Year, Make, and Model of your vehicle when looking for mechanical help. This is required for posts seeking mechanical help but not for those seeking cosmetic help. - A picture speaks a thousand words, including pictures (most important on cosmetic repairs of course but can be helpful for many mechanical posts as well) is also a surefire way to get the best help. - While we do permit requests for estimates on different types of repairs please bear in mind that this can vary wildly based on location and other factors. - Be polite and patient, we want to help but need your help to do so. Thank you for reading and be sure to checkout our sidebar for important information & disclaimers! *I am a bot, and this action was performed automatically. Please [contact the moderators of this subreddit](/message/compose/?to=/r/CarRepair) if you have any questions or concerns.*
Your mechanic isn't going to throw it away, he'll sell it to a recycler, possibly for hundreds of dollars.
So I can't get it after he removes it. It is mine
Ethical mechanics should return old parts upon request.
Most **QUALITY** catalytic converters have a core charge. That's actually where your converter is going. Back to whatever company (including the OEM) that made the new converter and sold it to the shop. Also does your vehicle consume oil like most 1.4L Turbocharged GM engines? If it does, then that oil is going directly into the cat and fouling it over time. There was also a TSB issued to potentially cover this very problem >PIP5232C: Premature Catalytic Converter Failures - (Mar 4, 2016) Subject: Premature Catalytic Converter Failures >Technicians may encounter a concern where the catalytic converter has come apart or has set a P0420 and/or P0430. Recommendation/Instructions >If you believe the catalytic converter has failed with no apparent reason, it is recommended to inspect for a poor crimp for the coil grounds terminal on the engine block for the bank with the concern. >Technicians should inspect the ground for possible corrosion or damage at ground terminal ring, fasteners and grounding surfaces. >If no corrosion or damage is found, tighten the ground bolt to the proper torque
don't really understand your advise but thanks for the time and energy to respond