Comment on P0420 – Catalytic converter system, bank 1 -efficiency below threshold by Doug

D

Doug

Guest
#1
Make: Ford
Model: Explorer
Year: 2013
Miles: 90k
Engine: V4


Is it really possible to clean your cat with lacquer thinner and fix P0420 ?

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grcauto

Hero Member
Joined
May 29, 2014
Messages
517
Likes
32
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#2
Old wives tale. Did the engine have a misfire for a while.