Fault Code P2431 - Chevy Cobalt Forum / Cobalt Reviews / Cobalt SS / Cobalt Parts
Chevy Cobalt Owners Lounge General Chevy Cobalt discussion

LinkBack Thread Tools Display Modes
post #1 of 2 (permalink) Old 05-21-2019, 11:01 AM Thread Starter
Join Date: Nov 2018
Posts: 20
Fault Code P2431

Hey guys,

I post here very occasionally on behalf of my son who owns a 2007 Cobalt LT sedan. It He now has a fault code P2431. I've tried to research it online. There seems to be several tings which can cause this fault code. His fault code indicates "secondary air injection system air flow/pressure sensor circuit range/performance bank 1".

What components can be involved? Should we just replace the secondary air injection system air flow valve? Or can it be more complicated or other things involved?

Thanks for any advice and help on this.
hangman is offline  
Sponsored Links
post #2 of 2 (permalink) Old 05-27-2019, 01:02 PM Thread Starter
Join Date: Nov 2018
Posts: 20
secondary air injection valve

My son is ordering a replacement OEM secondary air injection valve. We took the old one off just to have a look at it. I noticed that there is a small section of engine block "spacer" below the metal flex line gasket. AT the bottom of this "spacer" (don't know the correct name for it) is a second gasket.

Can anyone tell me what this part is called? Or even link to buy these gaskets? Thanks for any help on this.

hangman is offline  
Sponsored Links

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

Similar Threads
Thread Thread Starter Forum Replies Last Post
General Battery Fault Causes? W/Code djryanss Chevy Cobalt Owners Lounge 2 06-03-2013 10:44 AM
Wiring Fault / Short ? Doulos Audio/Video 6 06-22-2011 05:57 AM
Fault Code Po411 ace26dan Problems and Service 2 04-27-2010 06:49 AM
In need of some help with HID options! (Yes, another HID thread. But its your fault.) KrunchyKaine Interior & Exterior Styling 7 09-23-2009 03:11 PM

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