2004 Corolla CODE PO 420 137,000 miles - Toyota Nation Forum : Toyota Car and Truck Forums
9th Gen Corolla/1st Gen Matrix (2003-2008) 9th generation Corolla and 1st generation Matrix discussion.

 
LinkBack Thread Tools Display Modes
#1 Old 12-13-2010, 08:43 AM
2004 Toyota Corolla
 
Join Date: Apr 2008
Location: Holly Springs, GA
Posts: 99
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 11
Thanked 0 Times in 0 Posts
iTrader Score: 0 reviews
(Thread Starter)
2004 Corolla CODE PO 420 137,000 miles

Went to Toyota with an engine light. They said the code was PO 420 and i needed a catalytic converter and new front and back washers. They wanted 1500 to replace.

Where can I get a decent price converter and washers? I have a mechanic that charger $15 an hour to work on my car. I normally take to Toyota to get a diagnostic but buy somewhere else and let my mechanic put the stuff on.

Thanks
billisnice is offline  
Sponsored Links
Advertisement
 
#2 Old 12-13-2010, 12:08 PM
Official TN Member
 
Join Date: Jan 2009
Location: tennessee
Posts: 59
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 10 Times in 10 Posts
iTrader Score: 0 reviews
Use this link to read the earlier post on this topic.

2004 Corolla P0420 Code

I used Walker direct fit exhaust parts to replace the cat. converter. They have a five year, 50K mile warranty. You can buy them at local parts store or online for about $300-400. Don't go cheap with the generic converters for under $100. You'll regret it.

When you say 'front and back washers' did you mean front and back oxygen sensors? Those sensors are recommended to be replaces after 100,000 miles and are often replaced at the same time as the cat. converter. They are available at most auto stores and cost $75-100 each for direct fit replacements.
aspen007 is offline  
#3 Old 12-14-2010, 08:44 AM
Official TN Member
 
Join Date: Feb 2008
Location: Pa
Posts: 499
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 16
Thanked 34 Times in 34 Posts
iTrader Score: 0 reviews
I agree with aspen007, buy a good aftermarket converter as the cheapie genereic ones will haunt you in the near future.

Quote:
Originally Posted by aspen007 View Post
Use this link to read the earlier post on this topic.

2004 Corolla P0420 Code

I used Walker direct fit exhaust parts to replace the cat. converter. They have a five year, 50K mile warranty. You can buy them at local parts store or online for about $300-400. Don't go cheap with the generic converters for under $100. You'll regret it.

When you say 'front and back washers' did you mean front and back oxygen sensors? Those sensors are recommended to be replaces after 100,000 miles and are often replaced at the same time as the cat. converter. They are available at most auto stores and cost $75-100 each for direct fit replacements.

2005 Corolla LE - AT - 1ZZFE - 118,000 mi
1997 Tacoma - 2WD - 4CYL - 82,000 mi
dorman68 is offline  
#4 Old 12-14-2010, 10:05 AM
Senior TN Member
 
Join Date: Jan 2006
Location: Lancaster, PA
Posts: 3,150
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 13 Post(s)
Thanks: 63
Thanked 263 Times in 242 Posts
iTrader Score: 0 reviews
Are they positive that code is for the cat and not for the back O2 sensor?

Last edited by mikered30; 12-14-2010 at 08:20 PM.
mikered30 is offline  
#5 Old 12-16-2010, 01:19 PM
2004 Toyota Corolla
 
Join Date: Apr 2008
Location: Holly Springs, GA
Posts: 99
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 11
Thanked 0 Times in 0 Posts
iTrader Score: 0 reviews
(Thread Starter)
strange

The check engine light went out a couple days ago...As long as out i am not going to worry. Any additive i can add to the gas to clean the pipes out?

thanks
billisnice is offline  
#6 Old 01-02-2011, 04:31 AM
New TN User
 
Join Date: Dec 2010
Location: Denver
Posts: 19
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 6 Times in 2 Posts
iTrader Score: 0 reviews
Well, i wish my P0420 code would go away.

I'm down to replacing my cat. Already replaced spark plugs, and downstream O2 to no luck but still pass emissions with
flying colors.

See with a P0420, it doesn't take much to set it off.

Also there is no additive to clean the the pipes out if not make it worse.
ryfly is offline  
Sponsored Links
Advertisement
 
Reply

  Toyota Nation Forum : Toyota Car and Truck Forums > Toyota Passenger and Sports Car Forums > Corolla and Matrix Forum > 9th Gen Corolla/1st Gen Matrix (2003-2008)

Bookmarks

User Tag List

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome