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Been searching the forums here and other places and have yet to find the answer. Have a 2011 Spyder 987.2 and has the PSE. Would like to have the switch work so that the default is the PSE is in ON mode (light on as well) and I need to press the switch to turn OFF. I'm thinking it might be as easy as moving a couple connectors. From what I have read, on the 996 the switch actually worked the way I described -- Default ON, push button OFF.
its a Porsche guy that sells a little plug in module that will let you set your car to always start up in one of the sport modes which also activates PSE.
Carnewal also has a click-on module that lets you operate the exhaust flaps. This one works with a remote control, rather than with the button not he dash. Soaristo’s work seems better integrated.
The Carnewal module actually cuts power to the PSE altogether which prevents the DME from making the PSE quiet in 28-47mph range. Does the SOARISTO do the same? I do like the idea of using the button to accomplish this.
Interested in hearing more but I couldn't make heads or tails of the SOARISTO website.
A while back I read a thread where a guy had PSE installed in a 987 but the installer did something wrong and so the switch was acting the opposite way it was supposed to (defaulting to on). I think he provided more details on what the "problem" was but you'll have to dig the thread up. I know not super helpful but I think it is possible to do.
I have the Carnewal in my 987.1 and I like it a lot. I started to get irritated by the fart sound of the flaps opening and closing in that mid rpm edge.
Interested in hearing more but I couldn't make heads or tails of the SOARISTO website.
Sorry, it is written in Japanese. But even if you can not read the text, many images will help you understand, I think.
When you start the engine, the indicator will blink shortly to tell you that it is "Always-ON Mode". And one more push, it turn off.
This operation is possible because the unit is controlled by a microcomputer. It can not do it with a simple toggle switch.
My unit interrupts the control of the DME and forces the butterfly valve to open and close regardless of the engine rpm. In that sense, it is nothing new.
But I think it is a smarter way using the Genuine Combined Switch than using a Remote Control Key that you might lose somewhere.
Last edited by SOARISTO; Oct 28, 2020 at 03:42 AM.
The installer did something wrong and so the switch was acting the opposite way it was supposed to (defaulting to on).
I think he provided more details on what the "problem" was but you'll have to dig the thread up.
The answer is in my short video clip.
The motion of the solenoid valve and the motion of the butterfly valve are reversed (inverted).
This is the main silencer of PSE and a mechanical actuator that is operated by vacuum pressure.
This is a electromagnetic solenoid valve that controls the vacuum pressure applied to the mechanical actuator.
This is a close-up of the main pipe and there is a butterfly valve inside. The green mark in the center indicates the direction of the butterfly valve. (It may has been marked by a Porsche's supplier.)
That is very important. Under atmospheric pressure (when the vacuum pressure is not applied to the mechanical actuator), the butterfly valve is open.
So you will understand why the muffler makes a loud sound when you forcibly disconnect the connector of the solenoid valve.
The valve is open when there is no vacuum pressure on the actuator, the solenoid valve is close (OFF). That is, PSE is ON.
The valve is closed when vacuum pressure is applied to the actuator. the solenoid valve is open (ON). That is, PSE is OFF.
Namely, PSE = ON does not mean the solenoid valve = ON.
I think the installer misunderstood the meaning of actuator and solenoid valve operation.
He needed to read the service manual thoroughly.
Last edited by SOARISTO; Oct 22, 2020 at 11:14 AM.
Kon'nichiwa Soaristo,
Let me first congrats you on your achievement. It really looks OEM and that's what I like and would love to have for my Porsche.
2 questions from my end:
- Can it be implemented in a 997.1 with the PSE option (I'm planning to installing a 5 swith panel or make it myself)?
- Where can I buy the module?
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Change PSE switch to default to ON mode
PSE Control Unit with Always-On Mode
Which is smarter way?
Why it act the opposite way.
My Short Video Clip of PSE
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