Catalytic converter keeps failing

2012 PEUGEOT 208
52,500 MILES • 1.2L • 3 CYL • 2WD • MANUAL
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CRAIGYBOI
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Car has had two catalytic converters put on it and both have failed and cracked within a month of been replaced. not sure what's causing this, but need help.
Mar 6, 2020 at 1:51 AM
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ASEMASTER6371
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Good morning.

It sounds like they are overheating from running too rich with fuel. Unburned fuel in the exhaust will cause them to heat up and get damaged.

Is there a running issue with your car?

Roy
Mar 6, 2020 at 5:36 AM
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CRAIGYBOI
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Hi, thanks for the reply. the car was running fine before the first catalytic converter failed and ran fine after replacing it until the second one failed.
Mar 6, 2020 at 6:20 AM
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ASEMASTER6371
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Okay, does it run bad at this time?

What brand converter was used for the replacement?

Roy
Mar 6, 2020 at 6:23 AM
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CRAIGYBOI
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Hi, yes it does now as catalytic converter has a hole in it. not sure what the make of the catalytic converter was, but it was off another Peugeot 208 and it was the same year.
Mar 6, 2020 at 8:21 AM
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ASEMASTER6371
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Okay, so it was used. Never a good idea.

You need to replace with new only.

Roy
Mar 6, 2020 at 8:33 AM