Codes

Reply Subscribe

Thread Tools

Search this Thread

08-22-2007, 07:48 PM

mikesbadassTA

Registered User

Thread Starter

Join Date: Aug 2007

Location: Kentucky for now

Posts: 1

Likes: 0

Received 0 Likes on 0 Posts

Codes

I just got a code today on my 2000 TA, P0420 does anyone know what it is?

Reply Like

08-23-2007, 02:11 AM

ae13291

Banned

iTrader: (8)

Join Date: Jun 2007

Location: san fernando valley, california

Posts: 3,093

Likes: 0

Received 1 Like on 1 Post

yup just looked in my repair manual it says catalyst system effciency below threshold, left bank here u go man hope dat helps

Reply Like

08-23-2007, 12:50 PM

VIP1

Copy & Paste Moderator

Join Date: Apr 2002

Location: Eastern MA

Posts: 9,714

Likes: 0

Received 187 Likes on 141 Posts

Its either a bad 02 sensor or a plugged up cat.

Its in the sticky:
https://ls1tech.com/forums/showthrea...ighlight=P0420

Reply Like

08-28-2007, 10:49 AM

00ssmg

On The Tree

iTrader: (4)

Join Date: Jun 2007

Location: JOLIET

Posts: 157

Likes: 0

Received 0 Likes on 0 Posts

It Will Be A Bad Cat 100%

Reply Like

10-02-2007, 07:21 PM

02 Silver SS

Staging Lane

iTrader: (5)

Join Date: Sep 2005

Location: Bay Area

Posts: 91

Likes: 0

Received 0 Likes on 0 Posts

Its a bad cat on the drivers side.. I just had my replaced for free under the extended warrenty for 120,000 or 10 years from purchase date... the letter should of came in the mail to your address if not call ur local chevorlet dealership and talked to them as it should be replaced for free.