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)

p0410/1411, no CEL

Recommended Posts

Have been getting a CEL for P0410 / 1411 (Secondary Air Injection) and ordered a new air change over valve and electric change over valve, as previous diagnosis confirmed no other issues with the vacuum lines.

Imagine my surprise when I drove off this am, and the CEL did not light up. CEL lamp is functional, so just to make sure I hooked up the Durametric, hoping to see the P codes had disappeared.

That not being the case, I am wondering why engine management no longer shows the CEL while the codes persist in memory.

Any comments are welcome.


Link to comment
Share on other sites

Did you clear the codes and they came back?

If not, then codes remain pending until enough drive cycles have occurred without a fault to clear them.

Thanks Loren!

I did not clear any codes, the CEL disappeared, but the codes remained in memory.

Cleared the codes and will go thru the drive cycle and see if they come back. If I am lucky the SAI problem resolved itself.

Will revert, and ma have some parts for sale. ;-)


Link to comment
Share on other sites

  • 2 weeks later...

Quick update:

Have used parts for anyone interested. We bench tested them (both the air change over valve and the electric change over valve) after replacing with the new parts, but to be honest, I think the problem got solved by replacing most vacuum lines with a slightly thicker version than what was on there originally. This must have stopped the minute vacuum leaks and all is well.

Passed inspection this am!


Link to comment
Share on other sites

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
  • 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.