Jump to content

Welcome to RennTech.org Community, Guest

There are many great features available to you once you register at RennTech.org
You are free to view posts here, but you must log in to reply to existing posts, or to start your own new topic. Like most online communities, there are costs involved to maintain a site like this - so we encourage our members to donate. All donations go to the costs operating and maintaining this site. We prefer that guests take part in our community and we offer a lot in return to those willing to join our corner of the Porsche world. This site is 99 percent member supported (less than 1 percent comes from advertising) - so please consider an annual donation to keep this site running.

Here are some of the features available - once you register at RennTech.org

  • View Classified Ads
  • DIY Tutorials
  • Porsche TSB Listings (limited)
  • VIN Decoder
  • Special Offers
  • OBD II P-Codes
  • Paint Codes
  • Registry
  • Videos System
  • View Reviews
  • and get rid of this welcome message

It takes just a few minutes to register, and it's FREE

Contributing Members also get these additional benefits:
(you become a Contributing Member by donating money to the operation of this site)

  • No ads - advertisements are removed
  • Access the Contributors Only Forum
  • Contributing Members Only Downloads
  • Send attachments with PMs
  • All image/file storage limits are substantially increased for all Contributing Members
  • Option Codes Lookup
  • VIN Option Lookups (limited)

SAI System Diagnosis

SVTHorsnake
 Share

Recommended Posts

SVTHorsnake Member

SVTHorsnake

Posted
Posted

Long story short, buddy with a 996 TT texts me and says his car's thrown the P0491 and P0492 codes.  I found this thread:

 

P0491 and P0492 secondary air injection codes - 996 Series ...

 

I read it, pulled the air box, did a visual over the vacuum system, and everything looks ok.  I called another buddy who used to be a Porsche tech and he's saying 7/10 times it's bad BOVs and they need to be replaced.  I could see it if it was one or the other code, but absent a coincidence, when they both throw at the same time, it suggests to me the problem is something that impacts the entire system.

 

What is the proper starting point to diagnose the SAI system?  Power the pump (also, is the pump located in the driver side of the bumper?)?  Pull the valves and submerge them?

 

Car has a mystery tune (previous owner) and an Agency Power one-piece CF air box, no other mods that I could tell.  

 

Thank You in advance.

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing
×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.