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)

Recommended Posts

Posted

So glad i came accross this thread, always thought that there was nothing that could be done about the exhaust going quiet then coming back on a few thousand rpm later! I do have two questions for anyone that may be able to help me, i have the PSE fitted (obviously!) but i do not have the switch on the dash, car is a 2002 3.6 carrera4,

the questions are how hard is it to fit the switch, as in wiring it up, and does this mean that it was not a factory fitted option?

  • Replies 92
  • Created
  • Last Reply

Top Posters In This Topic

  • Admin
Posted

So glad i came accross this thread, always thought that there was nothing that could be done about the exhaust going quiet then coming back on a few thousand rpm later! I do have two questions for anyone that may be able to help me, i have the PSE fitted (obviously!) but i do not have the switch on the dash, car is a 2002 3.6 carrera4,

the questions are how hard is it to fit the switch, as in wiring it up, and does this mean that it was not a factory fitted option?

:welcome:

I don't think the switch was a factory option until MY2003. If you have option XLF on your options sticker then the sport exhaust was a factory install rather than a dealer install.

Posted

Thanks Loren, a wealth of information as always! will check it out when i get back home from work in a few weeks, any idea if it is possible to put the switch in if it is a factory fitted system?

Posted

Porsche list the control system in the Tequipment catalogue, so you can buy it as a kit rather than the individual parts.

Contributing Members can view the TSB which covers installation of the PSE, showing exactly what is involved in connecting up the control system. dry.gif

  • 6 months later...
Posted

I wanted to add that if you are doing a PSE installation from scratch and have to run the PSE wiring harness (or are having someone do the install for you), an alternative to cutting the diode in the relay is to simply not to install the Speedometer Signal A wire (Grey/Pink) that goes from the Relay socket pin 6 to the jumper plug 1/1 in slot 23 of the relay support. Simply tie that line off. If at a later time you want to activate the speed cutout, it is easy to just install the wire in Jumper Plug 1/1, Slot 23.

My car is a 1999 cabriolet with PSE installed complete with the vacuum cutoff but without the dash switch. I would like to add the dash so I can turn the system off completely if desired. Is a wiring diagram of harness available to add the swith later?

thanks for any help.

  • Admin
Posted

I wanted to add that if you are doing a PSE installation from scratch and have to run the PSE wiring harness (or are having someone do the install for you), an alternative to cutting the diode in the relay is to simply not to install the Speedometer Signal A wire (Grey/Pink) that goes from the Relay socket pin 6 to the jumper plug 1/1 in slot 23 of the relay support. Simply tie that line off. If at a later time you want to activate the speed cutout, it is easy to just install the wire in Jumper Plug 1/1, Slot 23.

My car is a 1999 cabriolet with PSE installed complete with the vacuum cutoff but without the dash switch. I would like to add the dash so I can turn the system off completely if desired. Is a wiring diagram of harness available to add the swith later?

thanks for any help.

Yes, you can buy the switch and wire it up.

The switch option did not come out until MY03.

I'll send you a PM.

  • Moderators
Posted

I wanted to add that if you are doing a PSE installation from scratch and have to run the PSE wiring harness (or are having someone do the install for you), an alternative to cutting the diode in the relay is to simply not to install the Speedometer Signal A wire (Grey/Pink) that goes from the Relay socket pin 6 to the jumper plug 1/1 in slot 23 of the relay support. Simply tie that line off. If at a later time you want to activate the speed cutout, it is easy to just install the wire in Jumper Plug 1/1, Slot 23.

My car is a 1999 cabriolet with PSE installed complete with the vacuum cutoff but without the dash switch. I would like to add the dash so I can turn the system off completely if desired. Is a wiring diagram of harness available to add the swith later?

thanks for any help.

Here is the install instructions for the Sports Exhaust System. In this installation document are the connections into the relay block for adding the switch.

Sports Exhaust System 03.pdf

Posted

I wanted to add that if you are doing a PSE installation from scratch and have to run the PSE wiring harness (or are having someone do the install for you), an alternative to cutting the diode in the relay is to simply not to install the Speedometer Signal A wire (Grey/Pink) that goes from the Relay socket pin 6 to the jumper plug 1/1 in slot 23 of the relay support. Simply tie that line off. If at a later time you want to activate the speed cutout, it is easy to just install the wire in Jumper Plug 1/1, Slot 23.

My car is a 1999 cabriolet with PSE installed complete with the vacuum cutoff but without the dash switch. I would like to add the dash so I can turn the system off completely if desired. Is a wiring diagram of harness available to add the swith later?

thanks for any help.

Here is the install instructions for the Sports Exhaust System. In this installation document are the connections into the relay block for adding the switch.

Sports Exhaust System 03.pdf

thanks!

  • 1 year later...
  • 1 month later...
Posted

Awesome mod, completed it in just a few minutes and went for a drive... glorious to hear the exhaust note all the time :)

  • 4 weeks later...
  • 8 months later...
  • 3 months later...
  • Admin
Posted

Hello

I want to go further in this question, anyone knows what kind of signal is speedometer signal? I mean if is a TTL or analogic voltage signal type

Thanks in advance!

Best regards

As I recall it is TTL.

  • Upvote 1
  • 3 years later...
Posted
On 25.7.2006 at 10:46 PM, Bernd_911 said:

Regards

This is so great! So great that I had to register just to post this post.

Have had my new-to-me C4S for about a week now and the cutout has been quite annoying. This was such an easy mod with a great result !

 

- Greetings from Norway

  • 2 years later...
Posted

This may be a bit off topic, but I just cut the diode and have a question.

 

It worked when engine started, but after few minutes I could hear the rattle until engine hot.

 

Any idea?

 

 

 

 

  • 4 years later...
Posted
On 1/17/2005 at 5:06 PM, P.Viby said:

Okay, I did this mod, but instead of taking the diode out I just released one of the the pins from the printboard, Took a piece of wire (2 pol) and connected a single pol switch in between.

Now I can control if I want the mod to work or if everything just work as normal (speed cutoff of the PSE).

Switch cost under 1 USD. So this must be the cheapest hack ever 😄

post-1237-1105977531_thumb.jpg

post-1237-1105977559_thumb.jpg

post-1237-1105977573_thumb.jpg

post-1237-1105978248_thumb.jpg

 

From what I understand, you simply inserted a switch between the diode and the board, right?

 

Seems like an elegant solution, and with the relay being north of $200 now, a good way to keep the car closer to stock.

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

×
×
  • 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.