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)
Sign in to follow this  
White987S

993 TT Fault Codes

Recommended Posts

What do the following fault codes mean:

1996 Turbo

approx. 45,000 miles

Fabspeed exhaust

Chipped DME/ECU

P0236

P0153

P0159

P0133

P0139

THANKS!

Share this post


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

P0133 Aging of Oxygen Sensor Ahead of Three Way Catalytic Converter ( TWC) (cylinders 1-3)

P0139 Aging of Oxygen Sensor After Three Way Catalytic Converter ( TWC) (cylinders 1-3)

P0153 Aging of Oxygen Sensor Ahead of Three Way Catalytic Converter ( TWC) (cylinders 4-6)

P0159 Aging of Oxygen Sensor After Three Way Catalytic Converter ( TWC) (cylinders 4 -6)

This would say the all 4 O2 sensors are taking too long to sense changes.

P0236 Turbocharger Boost Sensor Circuit “A” - Range / Performance Waste Gate Frequency Valve faulty

Interruption

- Interruption in wiring

- Waste gate frequency valve (coil) interruption

below lower limit

- short to ground

above upper limit

- short to B+

Repair the harness or replace the valve.

Share this post


Link to post
Share on other sites

Thanks, Loren!

What would remedy the 4 O2 sensor codes? Is the Fabspeed exhaust causing these fault codes?

Share this post


Link to post
Share on other sites

Hard to say - 45,000 miles seems a little early for all 4 O2 sensors. A modified DME program could cause issues too.

You should likely plot the O2 sensor voltage curves and compare it against a well running 993TT.

Share this post


Link to post
Share on other sites

Loren, do the 993 TT have the valve guide problem or just the NA cars? I don't think I've heard of any

if so some oil on the sensors might be causing this also

Share this post


Link to post
Share on other sites
Loren, do the 993 TT have the valve guide problem or just the NA cars? I don't think I've heard of any

if so some oil on the sensors might be causing this also

It is my understanding that the 1996's 993 TT had premature valve guide wear issues. Not so much on the 1997 993 TT.

Share this post


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.

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.