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)
Sign in to follow this  
Tim HH

Secondary Air Monitor not ready

Recommended Posts

just got an 06 Cayman S through inspection for a friend of a friend and wanted to share what worked. The two O2 and the Cat monitors were set, but they couldn't get either the secondary air or EVAP monitors to pass so it would go through inspection. I tried several times to get the SAI monitor to run and set at initial startup from cold, but it wouldn't. So, I cleared the monitors and started from scratch. I used this drive cycle:

 

Start engine, let idle for approx. 2 min, 10 secs

Accelerate to 20-30 MPH or 32-48km/h, Maintain steady speed for approx 3 min, 15 secs

Accelerate to 40-60 MPH or 64-96km/h, Maintain steady speed for approx 15 mins

Decelerate and come to a stop Idle in Neutral for 5 mins (manual trans).

During the drive cycle, do not exceed 3,000 rpm or 60 mph (96km/h)

 

After about 8 minutes into the 40-60 mph part I checked and both O2 and the Cat monitors had set. After about 20 minutes of 40-60 mph, with some stops and slowdowns (I live in upstate NY, full of hills, curves, deer, stop signs, etc.; no long flat roads), I pulled off and let it idle for 5 minutes in drive, then drove another 20 minutes home, and let it idle for another 5 minutes in park. This morning I did the drive cycle again, watching Lambda values in the initial start section. This time they peaked at about 1.2 and slowly climbed to about 1.24 before the air pump shut off (see picture). As I drove in the 20-30 mph part, I looked at my monitors and SAI and EVAP still had not set. 6 minutes into the 40-60 mph segment I checked again and the SAI monitor had set. When exactly it happened I don't know, but it did.

20191016_075617_HDR.jpg

Share this post


Link to post
Share on other sites
    You can remove these ads by becoming a Contributing Member.

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
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...

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.