Scotty, is it safe to use lacquer thinner right after I did it once and still have p0420 code on 2005 nissan frontier? Bolts are very rusty so not looking forward to taking off cat to clean it

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Fordar
Fordar

Thank you

ScottyKilmer
ScottyKilmer

Editor

that's a nissan, odds are you will need a new cat, rarely does cleaning fix those. But you can try

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