P0420, is the cat going dead or O2 sensors?
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Former Vendor
iTrader: (52)
Joined: Nov 2002
Posts: 6,912
From: San Jose, CA
Car Info: Evo X
P0420, is the cat going dead or O2 sensors?
Damn, I just got a CEL after a new tank of gas. It's P0420 Catalyst System Efficiency Below Threshold (Bank 1).
I hope my cat is okay... chance of my O2 sensor(s) going dead? car is 00RS with ~135k miles on it.
I hope my cat is okay... chance of my O2 sensor(s) going dead? car is 00RS with ~135k miles on it.
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mmboost
Interior, Exterior & Lighting
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Aug 23, 2004 07:58 PM
