Po420 code

Charliebrownwds

Original poster
Member
Feb 1, 2018
18
Illinois
Hey guys i need to replace the catalytic converter. I want to know your guys experience on this. Which cat should i get the walker or the magnaflow cats any good? Let me know what you guys have used in these tbs. Thank you!
 

wags69

Member
Mar 25, 2018
5
Illinois
When you do replace the cat, make sure it is OBDII compliant, or you may still have the P0420, or a host of other problems.
From experience, Caddy PCMs don't like cheap cats and will not clear codes with them installed.
 

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