Jump to content

Registered users (members) don’t see this ad!

Sign in to follow this  

Which aftermarket catalytic converter for 2000 Corolla

Recommended Posts

I have a 2000 Corolla, 200K miles with DTC P0420.  It has a new spark plugs, few year old MAF sensor, and two new O2 sensors.  The P0420 comes back every time soon after I clear the code with a scan tool. (Actually the code comes back quicker after the O2 sensors are replaced by new ones.) The scan tool cannot make plots, but every time O2 sensor 1 has low voltage (high O2 level), sensor 2's voltage also goes low within a second.  I think this means the catalytic converter cannot remove much O2 from the upstream.  I think I should still check if there are leaks in exhaust systems and fuel injectors.  

If I ended up needing a new catalytic converter, which brand, model would you recommend?  I heard that some aftermarket ones don't work very well.



Edited by randCorolla

Share this post

Link to post
Share on other sites

Join the conversation

You are posting as a guest. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Sign in to follow this  

  • Create New...