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PSE Brown Plug

paulstevens

paulstevens

New member
Guys,
I had the PSE fitted to my 997 C2 a while back, and love it to bits.
I am sure I have read somewhere that you can disconnect a small brown plug and the PSE will stay in loud mode always? I think the plug is on the right side of the engine bay towards the back, connected to a small black connector with two black "tubes?" going to each exhaust system? 1) Am I right in my assumptions, and 2) with the ignition off, I just disconnect and tie-up safely?

I also think I read somewhere that the sound of the exhaust is modulated by software so that when you are at town speeds, the system switches to quiet mode. I do seem to have a quiet patch in the exhaust note, but could this just be a revs/resonance thing.

Or, is it just not worth it, and I just continue to push the button each time I start up?

Cheers

Paul
 
I removed the brown plug associated with the PSE last night... huge difference, the car sounds fantastic.

Highly recommended "mod".

Regards
Mark
 
Yes, it's about 20% louder than normal PSE, and no more cut-outs when you drive along [:D]

I would recommend putting it back to stock when you go in for a service, and/or every 1000 miles for just a day or so. The latter is so that the vacuum controlled valve stays loose and doesn't get stuck through lack of use.
 
Guys,

Made the mod' by just pushing the spring pin in and carefully separating the plug, then I pushed the plug back together but not past the spring clip (it doesn't connect electrically) as per the link that Alex suggested, then I wrapped a bit of heat resistant insulating tape to stop it falling apart and also to ensure no ingress of muck/water.

Part of my route home is in a small lane (30-40mph ish) past a long 3mtr high wall, open the windows and the sunroof, blip the throttle mid change down and floor it, WOW how much better is that sound :ROFLMAO::ROFLMAO::ROFLMAO::p

Thanks for the info & make sure all you PSE owners PULL THE PLUG!!

Paul
 
Paul
I also pull the plug, but remember to refit occasionally just to exercise the valves, you will also find on a longer journey it can become wearisome on the ears (from the other half complaining at the racket from the back of the car). The plus point of detaching the plug to get the richer soundtrack is that the PSM is fully functional and not in its reduced mode when you push the sport button to enable the PSE .

Paul
 
After having my PSE unplugged for the 12 months since I bought my car (I unplugged it the week I bought it), I decided to replug to let the valves have chance to work. After driving 1 mile I couldnt stand the silence and had to pull over and unplug it again. Plugged, even with the PSE on is a poor imitation of what the car really sounds like with it unplugged.

I dont think I will be replugging my ever again - even if the valves rust up and seal open I really wouldnt care. I never want to hear those muted dull exhaust notes again...
[:D]
 
Guys,

Whilst I love the new richer, deeper noise, I did get a comment from my neighbours that they heard me come home in the early hours of the morning (and I was trying to be quiet), so I wonder sometimes if having the stealth mode available would be a good thing. [8|] What we need is another switch inside the car that effectively disengages the plug so you can have the best of all worlds [:D].

The system is most definitely louder across the board with the plug disconnected versus the switch pushed.

Paul
 
Hi all

After reading this post last night I removed the plug first thing this morning . It was very easy and took a few seconds and WOW what a difference . I have a 997 C2 S and it will now stay like that for ever .

But I have some questions

1. can it do any long term damage at all
2. do I still need to press the sport button to get the noise or is it on all the time
3 . Should I cover the plug ends with tape
4 . will it effect fuel consumption
5. Warranty will that be affected
6 . How offten should I re-connect
7. Will it effect Performance

Sorry about all the questions but better safe than sorry

Regards

Vito
 
Hi Vito,

But I have some questions -
My anwsers for you:



1. can it do any long term damage at all - I wouldn't have thought so, been doing this for 3 years with mine with no probs.
2. do I still need to press the sport button to get the noise or is it on all the time - no, the button will stay illuminated to indicate a fault and pressing the button will do nothing whatsoever !
3 . Should I cover the plug ends with tape - no need, mine jams between the two air pipes next to the connector to stop it rattling around the engine
4 . will it effect fuel consumption - no, only if you keep flooring-it !
5. Warranty will that be affected - no
6 . How offten should I re-connect - whenever you don't want to wake the neighbours, have a 300+ mile motorway trek, are not looking for so much attention etc
7. Will it effect Performance - no
 
A bit more feedback

1. can it do any long term damage at all
[Robert] I wouldn't have thought so, been doing this for 3 years with mine with no probs.
[Alex] Yes you can have the valves seize up after a few years of having them sitting doing nothing. So I would put it back to normal every 6 months or so (a motorway trip is a good time to do so) just to give the valves a little work out.

2. do I still need to press the sport button to get the noise or is it on all the time
[Robert] no, the button will stay illuminated to indicate a fault and pressing the button will do nothing whatsoever !
[Alex] With my 'tube' setup there are no fault lights. I am surprised there are with the brown plug method. Either way, the noise will be loud all the time. I found that pushing the sport button will actually make it sound more agressive though.

3 . Should I cover the plug ends with tape
[Robert] no need, mine jams between the two air pipes next to the connector to stop it rattling around the engine
[Alex] Defer to Rob on this however I was told by my OPC (unofficially) that if I did disconnect the brown plug then to stop dirt getting into the plug ends they should be taped up as this could cause a lot of damage otherwise.

4 . will it effect fuel consumption
[Robert] no, only if you keep flooring-it !
[Alex] I think it does from my 2 years with it, but only a very small amount.

5. Warranty will that be affected
[Robert] no
[Alex] This is not an officially recommended step (although my OPC implemented my tube solution themselves after I asked them to when retrofitting PSE) so I would always put it back to stock when getting a service etc. Just in case.

6 . How offten should I re-connect
[Robert] whenever you don't want to wake the neighbours, have a 300+ mile motorway trek, are not looking for so much attention etc
[Alex] See long term damage answer above.

7. Will it effect Performance
[Robert] no
[Alex] Agreed, although I found I didn't need to thrash the car so much to get the good noises. So in that respect, I was slower :)

 
Hi Robert

Thanks for the info it will help alot . My car does not show a falt with the brown cable unpluged but I cant help flooring it to get the noise love it so much better . I will prob re conect prob every service and on long runs .

Thanks again

Vito
 
Hi Alex

Thanks for the extra info I am showing no falt lights too and I always run in sport. Also I will try to get something to cover the plugs .

Thanks Vito
 
Hi All - I've been reading this forum with great interest and found some very useful stuff, many thanks!

Just bought a black 997S with PSE and was glad to learn about the option to disconnect the PSE plug, what a difference! Alex, would like to go with your option. Any advise on where I could get the tube and cap you're referring to?

Many thanks!
 
ORIGINAL: Rigo

Hi All - I've been reading this forum with great interest and found some very useful stuff, many thanks!

Just bought a black 997S with PSE and was glad to learn about the option to disconnect the PSE plug, what a difference! Alex, would like to go with your option. Any advise on where I could get the tube and cap you're referring to?

Many thanks!
Click to expand...

Along with my first link I posted, here's a pic of what my OPC gave me:

DSC01488Large.jpg


The long plastic pipe is hollow, and the short rubber bung is only open on one end.
 
Guys,

This seems a bit like overkill hard work.
All I did was seperate the two halves of the plug then push it back together upto, but not past the retaining clip, wrap a piece of heat resistant tape around to ensure the two halves do not come apart and also stop the ingress of any muck (although the resultant gap is in fact negligble). Job done Bob's your auntie & Fanny's your uncle!

If I put the car into the OPC or want to exercise the valve, then I just remove the tape push the plug fully home and it's just like original.

Maybe I'm a lazy git, but replumbing everthing seems like a bit of a faff.

Paul
 
ORIGINAL: paulstevens

Guys,

This seems a bit like overkill hard work.
All I did was seperate the two halves of the plug then push it back together upto, but not past the retaining clip, wrap a piece of heat resistant tape around to ensure the two halves do not come apart and also stop the ingress of any muck (although the resultant gap is in fact negligble). Job done Bob's your auntie & Fanny's your uncle!

If I put the car into the OPC or want to exercise the valve, then I just remove the tape push the plug fully home and it's just like original.

Maybe I'm a lazy git, but replumbing everthing seems like a bit of a faff.

Paul
Click to expand...

Once you have the pipe and the bung it is just as quick to apply/remove as the plug disconnect method. Plus you don't have to worry about tape!
 
I unplugged mine, and re-inserted it almost all the way like Paul did.
When you re-insert it, it's so stiff anyway and hasn't moved at all since so I didn't use any tape.

Lovely
 
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