Jump to content

The RennTech.org community is Member supported!  Please consider an ANNUAL donation to help keep this site operating.
Click here to Donate

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)

Is the 997.1 C2S catalytic converter part same as the 996 one?


Recommended Posts

    You can remove these ads by becoming a Contributing Member.

  • Admin

Sorry, the cats and sensors are different part numbers -- and in different locations.

Even if you used 996 sensors on a 997 cat I think the computer would see the difference due to location - but who knows until someone tries.

The 997 cats are about 12 lbs lighter...\

996 cats

post-1-0-88791200-1344210019_thumb.jpg

997 cats

post-1-0-08487400-1344210023_thumb.jpg

Link to post
Share on other sites

Odd. My 996 cats have the 02 sensor plug locations like it is in your 997 drawing. Did you switch the diagram label?

I wonder if the shapes are the same (and length of the pipes) despite the 02 locations

Link to post
Share on other sites
  • Admin

The images are for 3.6 liter cars and they are not switched.

997-1 and 996 (3.6 liter) are the same engine - so other than tailpipe location (body design change) they should be close. There were changes to the DME but the O2 sensors are the same part numbers.

Link to post
Share on other sites

I went through this when replacing my cats earlier this year. The O2 sensor location was changed between MK1 and MK2 996. Prior to 2002 the second oxygen sensor is near the muffler clamp, but in 2002 it was moved to the top of the cat. The physical dimensions for the cats are the same. Aftermarket catalytic converters often come drilled out for both. I'm pretty sure either would fit, however the O2 sensor leads have to be extended if you switch from one that has the O2 sensor at the cat to one that has the O2 sensor near the muffler clamp.

I'm not completely sure about the 997.1 cats in a 996 though.

Link to post
Share on other sites

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.

×
×
  • 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.