P0420 Code
P0420 Code
My CEl is on for the P0420 code. After searching a little on the forum I see some mention to get an aftermarket y-pipe to eliminate the precats but I already have a Warpspeed Y-pipe and carsound hi-flow cat. What else could be causing the code? Is it an O2 sensor and if so which one do I replace? Thanks.
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Joined: May 2013
Posts: 253
From: south east conn.
My CEl is on for the P0420 code. After searching a little on the forum I see some mention to get an aftermarket y-pipe to eliminate the precats but I already have a Warpspeed Y-pipe and carsound hi-flow cat. What else could be causing the code? Is it an O2 sensor and if so which one do I replace? Thanks.
Newbie - Just Registered
Joined: Jun 2014
Posts: 7
From: Florence Az.
My CEl is on for the P0420 code. After searching a little on the forum I see some mention to get an aftermarket y-pipe to eliminate the precats but I already have a Warpspeed Y-pipe and carsound hi-flow cat. What else could be causing the code? Is it an O2 sensor and if so which one do I replace? Thanks.
did you say 420 ???......sorry I couldn't help myself .....
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Kyle Lee Cleveland
6th Generation Maxima (2004-2008)
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Sep 28, 2015 09:01 PM