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)

Durametric Actual Values Look-up? or Data Tutorial?


Recommended Posts

I don't have the equipment for fuel pressure test or the intake air test. I have noticed that the CEL comes on more quickly as I have been driving again more... I did a three hour drive on Saturday and did a cold start, warm start actuals test. I also am including the most recent faults codes report as it is consistent that the cylinders that are recording the misfires are nearly all of them but are intermittent.

@Ahsai can I ask you to look at these reports counting the misfires at cold start and warm start and let me know if these give any additional insights? Thank you!


Link to comment
Share on other sites

    You can remove these ads by becoming a Contributing Member.

Nothing much new other than the cold start log shows the misfires are more prominent at cold start during the open loop phase.

Can you log the coolant temp (or engine temp as Durametric calls it) and intake air temp during cold start?

Also one thing you can try is e-gas recalibration. Just leave the key in the last position before crank for 60s, then turn the key to OFF for 10s then you're done.


I think you would need to bring it to a good shop for further diagnostic.

Link to comment
Share on other sites

Thanks Ahsai. This model (AE) has a cable throttle so no e-gas present. I am going to try another test with the engine cold in about 2hrs. 
I just cross posted this on Pelican as well. I've been a long time member there and thought that we might get lucky with some sharing.
Will post the updated reports here as soon as I have them. Thank you,



Link to comment
Share on other sites

  • Moderators
46 minutes ago, Ahsai said:

AFAIK, all 2004 996s (2000+ and all AWD for that matter) have e-gas. Are you saying you see a physical throttle cable on your throttle body?


Duncan is correct, that car should be E-gas...............

Link to comment
Share on other sites

Hello guys. "AE" is my abbreviation for Anniversary Edition. Unlike all the other 996.2's that have e-gas, the AE has a cable throttle. I think it was a nod to the past throttle feel.

Appreciate everyone weighing on on the thread.

Link to comment
Share on other sites

  • Admin
10 minutes ago, innov8 said:

Hello guys. "AE" is my abbreviation for Anniversary Edition. Unlike all the other 996.2's that have e-gas, the AE has a cable throttle. I think it was a nod to the past throttle feel.

Appreciate everyone weighing on on the thread.


Really? I see nothing in the parts list about different throttle body or cable for the model year 2004 AE.

How about a photo?


Link to comment
Share on other sites

innov8, in addition to what Loren showed about, the AE can't use a wired throttle because it comes with PSM, which uses e-gas to throttle the engine.


If you really have a cable sticking out of your throttle body, that can't be a stock throttle body/engine.

Link to comment
Share on other sites

Hello again. I'm not with the car... and haven't actually seen the cable for the throttle linkage. I'm only going on what I've read but clearly there are different sources.

Read the first sentence on page 2 of this Porsche Official Press Release.... "This engine is equipped with a direct accelerator pedal linkage that provides spontaneous response and the anniversary car also has a mechanical rear-axle differential that enhances traction and acceleration potential. Together, these changes make the 40th Anniversary 911 one second faster in the acceleration run from a standing start to 120 mph (200 km/h), a feat the car accomplishes in 16.5 seconds."

When I get home later, I will try looking for a cable and see it is visible to photograph.

Link to comment
Share on other sites

Prolly marketing loss in translation. Note the next paragraph says the 40th comes with PSM as a standard feature. If you have wired throttle, PSM can't modulate the throttle.


Anyways, these are the pics of the wired throttle (left) and e-gas throttle (right). Yours should look similar to the one on the right.



Link to comment
Share on other sites

Hello... so I'm a victim of marketing. Ironic. My 996 AE is definitely E-Gas as shown above. 
I'll try the e-gas recalibration as noted above.
below. These include the oil temp and ambient temp as requested... you'll see the misfires counting then going away when the throttle drops down to idle. Could this be the purge valve sticking (part no 
83-08019561) or would that have shown up in the durametric testing? Going to try and find a vacuum leak with a home made smoke machine this weekend.

Let me know if the actual values with the temps show anything new that I should run down. Thank you again for everyone input.


Link to comment
Share on other sites

@Ahsai Thank you... I did the e-gas recalibration and am still getting a slight roughness in the cold start and a very slight hesitation when pulling away in first from a stop... the rpm drop for 1/2 a second as I pass 2k and then comes back and pulls hard and smooth.

While researching smoke machines, I found your hack of a fog machine into a smoke machine—Brilliant! I have one and am planning on testing for vacuum leaks this weekend. Still determined to make as many maintenance and repairs on my 996 as I can. I keep telling myself that is part of the pride and joy or ownership. Understanding and repairing things is becoming a lost art in the world today. I like the idea that we can still fix most of what needs fixing... with the support of communities and resources like your posts.

Thank you again for all your help thus far. I noticed another post where someone has gotten the same codes but I don't think that they have gotten into the different data points as you have guided me. I'm going to share this thread there and maybe they can benefit from some of your advice as well. 

Link to comment
Share on other sites

"Understanding and repairing things is becoming a lost art in the world today." <- Can't agree more!!


There are a few things you can test just to eliminate those:

- check crankcase vacuum (using a $35 digital manometer) and make sure it's ~5" of water

- check the purge valve you mentioned (check if it's leaking).

- check for intake air leak

- check fuel pressure at idle

Link to comment
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.

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.

  • Similar Content

    • By Ravi Matharu
      My 99 996 has started beeping twice when I press the key fob.
      It locks and then immediately unlocks.
      Also when opening the drivers side door, the window goes down when handle is pulled but goes straight back up when the handle is released. So the window obstructs the door closing.
      I have the following Durametric Alarm errors:
      Voltage failure during alarm
      Status: not present
      Frequency counter: 1 10
      Voltage failure at terminal 30
      with alarm system active
      Status: not present
      Frequency counter: 1 46
      Control locking synchronization

      Status: not present
      Frequency counter: 2 49
      K lead

      Status: not present
      Frequency counter: 1 21
      W lead (DME immobilizer)

      Status: not present
      Frequency counter: 1  
      What's the best way to proceed with fixing this?
    • By Carerra
      2010 Carrera S 6M Cab 150k miles

      TLDR: Dealer tells me the code is 2402 and Durametric returns 0024 with a description that matches the dealer.
      I am getting screwey values when I look up actual values.
      I try to clear codes and they don't seem to clear.
      Has anyone else seen this?

      I got CEL after about 1000 miles after replacing the catalytic converters myself. I pulled the codes with my Durametric and got:
      0024 - DMTL Diagnosis module for tank leakage; pump drive rUpper limit exceeded
      0010 - Intake camshaft driver

      I took it to Porsche because I wrongly figured this was related to my cats. They pulled the codes and said the car was throwing 2402 and that the 0010 was in the system but had been there for a long time and was not relevant.

      Now I had cleared that 0010 about a half dozen times so I thought it was fresh. It did not register at the time, but that means my reset did not work.

      They said that it would cost $1,100 to replace the DM-TL and filter. It was very likely the right thing to do because they tried to actuate it and it would not spin.

      As I have dropped about $14k on my Porsche habit in the last 30 months and my wife has had about enough of this, I paid the diagnostic fee and replace the parts myself (saving about $700).

      Now my Durametric is still pulling the same codes plus a new one:
      0014 which it says is No signal/communication

      That code, like the 0024, is not in my copy of the Porsche 997 essential companion.

      So when went to look at live values relevant to the DM-TL the Durametric was putting in some weird results. Percents or bars when the units should have been seconds.

      Background: DM-TL is a complicated pump/sensor that determines that there are no leaks in the gas fume recycling system. It pulls low amps if there is a leak, so a high value means there is a problem with the pump or maybe a short.
    • By Goldlake80
      I had to disconnect the passenger side door airbag as part of door panel removal, to replace the door lock mechanism. To check that I replaced the part correctly, I reconnected the battery and turned the ignition key, and got an "Airbag Failure" warning. The fault didn't clear even after disconnecting the battery, reconnecting the airbag and closing up the door panel, and reconnecting the battery.  I confirmed the airbag was reconnected.  I suspect that it may be a "latched' fault that can only be cleared via the Durametric tool - thoughts?
    • By Pkcayenne
      Hi all I’ve been fighting with the cayenne again 
      let’s me put the key in and turn it then I get steering fault as attached any ideas of a way around this or a reset thanks car won’t start 

    • By TyS
      I'm unable to connect to the engine module on my '09 Cayenne with my new Durametric cable.  I called tech support for an assist and was told that they are still working on coding to allow for connecting the 957 to the engine module.  The Durametric website  does list the MED9 for V6 as being available for reading/clearing codes.  Wondering if anyone else has found a way to get this to work.  I'm using version 6 software.

  • 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.