Jump to content

Server Lease Renewal/Software Licenses

Our yearly server lease, software licenses, as well as hardware operating costs, ARE due Dec 6th, 2021. Our current donations have fallen far short of the funds we need to renew. Please remember the RennTech.org community is Member supported so please consider a donation to help...  THANK YOU!

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)

Recommended Posts

  • Moderators

Is the PSE button connected directly to DME? Where can I find more info about the PSE button wiring?

 

Year and model is always helpful.  You would need the car's wiring diagrams.  The Bentley manual has a set for most 996's.

Link to comment
Share on other sites

If it's a factory installed PSE then I believe the PSE switch is connected to the DME.  I believe I have a PDF of the 997 install technical bulletin which shows the direct connection to the DME. If you want it send me your email address via a PM and I'll try to find it and send it to you.

Link to comment
Share on other sites

 

Is the PSE button connected directly to DME? Where can I find more info about the PSE button wiring?

 

Year and model is always helpful.  You would need the car's wiring diagrams.  The Bentley manual has a set for most 996's.

 

 

It's a 2005 C2, Sport Chrono package. I have the 101 Projects book, I'll check it later. Meantime, I've checked the 996 2002-2205 which is supposed to have the same DME version. I couldn't find the PSE switch pins.

 

If it's a factory installed PSE then I believe the PSE switch is connected to the DME.  I believe I have a PDF of the 997 install technical bulletin which shows the direct connection to the DME. If you want it send me your email address via a PM and I'll try to find it and send it to you.

 

The car came with factory installed Sport Chrono but without PSE mufflers. As far as I understand, the mufflers were not available at that time. I installed the mufflers (2nd hand) & wiring+valve (new). I'll PM you asap.

Edited by d0lph1n
Link to comment
Share on other sites

My goal is to tap into to PSE or Sport mode switch= > install a relay; if PSE/Sport button ON the relay will disconnect the PSE solenoid from DME...so the PSE exhaust will remain ON all the time, as long as the PSE button is ON.

Edited by d0lph1n
Link to comment
Share on other sites

I think if you defeat the DME in this manor you will set a DTC fault (although the check engine light will not illuminate) . The DME looks to the solenoid for resistance checks on start up to see if any wiring , solenoid , resistance failures are in the circuit. The only ways to have the PSE on all the time without setting DTC's are (1) to disconnect the vacuum lines ,(leaving the electrical" as is") or (2)to add another control system like wireless remote to control the PSE . I have a wireless remote that I use for Sound Symposer Retrofit kit for 996 997.1 that will work for PSE also. I'll attach a picture and can visit my website at www.bansheestethoscope.com for more pictures and info . Best regards

Link to comment
Share on other sites

I think if you defeat the DME in this manor you will set a DTC fault (although the check engine light will not illuminate) . The DME looks to the solenoid for resistance checks on start up to see if any wiring , solenoid , resistance failures are in the circuit. The only ways to have the PSE on all the time without setting DTC's are (1) to disconnect the vacuum lines ,(leaving the electrical" as is") or (2)to add another control system like wireless remote to control the PSE . I have a wireless remote that I use for Sound Symposer Retrofit kit for 996 997.1 that will work for PSE also. I'll attach a picture and can visit my website at www.bansheestethoscope.com for more pictures and info . Best regards

 

 

I see, I'm familiar with the wireless solution but I'm not familiar with a DTC fault. A lot of people recommend disconnecting the wire harness from solenoid. Anyway, as I mentioned earlier, my goal is to install a relay that does the followings:

1. Detects PSE or Sport Mode button ON (Ex: PSE button's LED light)

2. Switches off the DME connections to solenoid simulating a solenoid's harness removal. If what you say about DTC fault is true then instead of switching off the connection to the solenoid, the relay could swithc it to a  fake resistance (same value as solenoid's). No need for a wireless or wired 12V alternative circuit.

 

My car 2005 C2 (no-PASM), came from factory with the Sport Chrono package (Sport button) but without PSE mufflers, solenoid etc. What I'm trying to say, the PSE worked fine withtout a solenoid until I purchased it and installed a solenoid and PSE mufflers etc.

Edited by d0lph1n
Link to comment
Share on other sites

Disconnecting the solenoid does cause a DTC (although does not turn on the CEL) the DTC is there next time you run the scan . Although some solenoids disconnected, like the one on the air cleaner ,for Helmholtz resonator will set a background DTC and ALSO disable sport button . Switching to a resistance of equal value WILL satisfy the DME and not set DTC if the switch can be done instantaneous , with no drop or rise in resistance . Give it a try , it just may work!!

Link to comment
Share on other sites

If your car did not come with PSE mufflers ,solenoid,  wiring , then your DME is not enabled for PSE and will not look for resistance , or control the solenoid until its enabled . I believe your car has the button built into the A/C control and sends the signal over CAN line to DME. I think  the wireless solution is the best way for you to go.

Link to comment
Share on other sites

If your car did not come with PSE mufflers ,solenoid,  wiring , then your DME is not enabled for PSE and will not look for resistance , or control the solenoid until its enabled . I believe your car has the button built into the A/C control and sends the signal over CAN line to DME. I think  the wireless solution is the best way for you to go.

 

I've been driving all day with the solenoid disconnected. I did a check few minutes ago, the obd scan reports zero errors.

Re: the wireless solution, if the Sport mode switch is not connected directly to DME, I might integrate it with my idea, if I'll be able to make the relay control the wireless remote.

 

Having an extra button to push is no good ;)...for me.

Edited by d0lph1n
Link to comment
Share on other sites

Yes it makes since , your car has never had the PSE enabled , so the DME is not looking for resistance or to control it.

 

But the Sport button ON works accordingly:

- better throttle response

- faster gear shifting

- gear shifting at a higher rpm 

- full pse solenoid control

- the steering wheel is more responsive

- more aggressive engine break (i think)

- open PSE valves

etc

Edited by d0lph1n
Link to comment
Share on other sites

Really? that's strange..should have to enable PSE in DME ,A/C control , and Gateway through PIWIS tester or Durametric software ..so it turns off and on with the button? . And does the modulation through the quiet zone ?Do you have a PIWIS or Durametric?

Link to comment
Share on other sites

Really? that's strange..should have to enable PSE in DME ,A/C control , and Gateway through PIWIS tester or Durametric software ..so it turns off and on with the button? . And does the modulation through the quiet zone ?Do you have a PIWIS or Durametric?

 

It turns on/off with the Sport button. No idea how it does the modulation. I don't have access to Piwis or Durametric. When I had access to Duramteric V3, the only error was CAN BUS display c112 in the gateway module..i think

 

Also, When I purchased the car, I paid for the an independent Porsche mechanic to inspect it. All the issues found (the Sport button wasn't working at all) including a DME issue were fixed by the dealer via a Porsche dealership. I was able to double check it by asking the Porsche dealer for the repair history.

 

It looks like at that time the dealer replaced & programmed the sport button control unit..for $1000.. Part number 997.618.516.01 was replaced 

Edited by d0lph1n
Link to comment
Share on other sites

 

Yes it makes since , your car has never had the PSE enabled , so the DME is not looking for resistance or to control it.

 

But the PSE ON works accordingly:

- better throttle response

- faster gear shifting

- gear shifting at a higher rpm 

- full pse solenoid control

- the steering wheel is more responsive

- more aggressive engine break (i think)

etc

 

 

In reading your various posts I think you might be confused (or I am) about your PSE.  What you described above for "PSE ON" is not PSE but "SPORT" mode.  You say you don't have PSE mufflers so I'm thinking you don't have PSE at all.  One external indicator would be to look at the tail pipes - do you have dual quads with the inner pipe with a smaller diameter than the outer pipe.

Link to comment
Share on other sites

 

 

Yes it makes since , your car has never had the PSE enabled , so the DME is not looking for resistance or to control it.

 

But the PSE ON works accordingly:

- better throttle response

- faster gear shifting

- gear shifting at a higher rpm 

- full pse solenoid control

- the steering wheel is more responsive

- more aggressive engine break (i think)

etc

 

 

In reading your various posts I think you might be confused (or I am) about your PSE.  What you described above for "PSE ON" is not PSE but "SPORT" mode.  You say you don't have PSE mufflers so I'm thinking you don't have PSE at all.  One external indicator would be to look at the tail pipes - do you have dual quads with the inner pipe with a smaller diameter than the outer pipe.

 

Yes you are right...I made a huge error. I have a Sport button, not a PSE button. What I'm trying to do applies to either PSE or Sport button.

Edited by d0lph1n
Link to comment
Share on other sites

Really? that's strange..should have to enable PSE in DME ,A/C control , and Gateway through PIWIS tester or Durametric software ..so it turns off and on with the button? . And does the modulation through the quiet zone ?Do you have a PIWIS or Durametric?

I appologize for my previous chaos. I have a SPORT button, part of the Sport Chrono...not a PSE button. I'm really sorry. I've been reading lately the PSE install pdf which has the instructions for both..Sport Chrono or PSE only. I've updated my previous posts.

 

Anyway, do you have the DME pinout or schematics?

Edited by d0lph1n
Link to comment
Share on other sites

Can anybody please confirm, is the Sport button's ON/OFF LED connected directly to DME or not?

 

On my copy of  911 2005 Sheet 4 "CU CLuster / Combined Steering Column Modul":

I'm guessing, the Sport Button's LED (A12) - On Board Comp, Network Control Unit 2/E10 - 397 Ye/Ye 0.35 - NR. GM

 

Also, what's the easiest way to access this wire or what's the exact location of the CU On Board Comp. Network?

post-90722-0-03524700-1426550673_thumb.j

Edited by d0lph1n
Link to comment
Share on other sites

  • 2 years later...
On 2015. 3. 13. at 1:10 PM, AP 997S said:

If it's a factory installed PSE then I believe the PSE switch is connected to the DME.  I believe I have a PDF of the 997 install technical bulletin which shows the direct connection to the DME. If you want it send me your email address via a PM and I'll try to find it and send it to you.

HELLo, 

 

can you send me the 997.2 PSE install guide file to me? 

cmkoo21@gmail.com 

thanks 

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.

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.