Diagnostic Code P0420

Reply Subscribe

Thread Tools

Search this Thread

May 3, 2008 | 09:05 AM

bluebriscoe

Thread Starter

Senior Member

Joined: Dec 2007

Posts: 151

Diagnostic Code P0420

My car has the SEL and the code is P0420.After researching I found that it means that the "catalyst efficiency low-bank 1".So what should I check first the fix the problem?

May 3, 2008 | 12:09 PM

SoonerFan

Cletus

iTrader: (5)

Joined: Sep 2003

Posts: 23,676

From: OKC, OK

why do you have two threads about this

check your other thread for my answer...and next time...search

Reply Subscribe

Related Topics

Thread

Thread Starter

Forum

Replies

Last Post

SES light with 4 codes

maxinout93

5th Generation Maxima (2000-2003)

Oct 31, 2015 02:04 AM

Pulling Codes P1278 and P1279

Kyle Lee Cleveland

6th Generation Maxima (2004-2008)

Sep 28, 2015 09:01 PM

2005 P0305 code repair

dshinn

General Maxima Discussion

Sep 26, 2015 08:07 PM

Reply Share

First
Prev
1 / 1
Next
Last