could be faulty? my car is at the shop getting HAS. once i get it back my cargraphic will be thrown on and ill report back my findings

 

nah it def switches modes correctly. Stock PSE mode sounds the same way it did before. I always thought it sounded quite loud despite supposedly being rpm-based

 

my .1 S was louder stock vs my .2. on my .1 the cargraphic made a significant differance in the exhaust note and turbo sound. ill know later this week how the cargraphic changes the .2 and report my findings. i know nothing about alpha controllers

 

Oh yeah the 992.1's sound totally different on every YouTube video showing the valve controller. The monitor OPF probably dulls it all down. Valve controllers are valve controllers, it's not rocket science. But yeah happy to hear what you find. Just sharing my experience post-install so everyone can do their own due diligence to check valve performance before buying.

 

Can someone knowledgeable help me with my valve controller?

I installed one myself just yesterday but I think I have an ECU issue or "sticky" valves because my valves fully open with the controller, but cannot fully close when given a "return to normal" signal (i.e., when I close the valves, nothing happens. Valves are stuck fully open).

My car subsequently starts with a CEL, but is in "normal" mode and PSE works in the cabin -- I press the button and my valves open slightly, and they close slightly. Signals are being routed correctly it seems from the controller, leading me to think this might be a physical issue, or something beyond my ken with the ECU.

I can read and clear errors, so my CELs are just valve related due to parking the car with the valves "open" - and I have a high pitched whine from the rear of my car others have reported where I think the motor forcibly closes the valves.

I have done the following to troubleshoot, to no success:
1. Checked the connectors, all seem seated properly.
2. Performed 1 or 2 engine cycles (only installed for a day)

I will do the following to troubleshoot:
1. Disconnect and reseat all the pigtail connectors
2. Cycle the engine a few more times (i.e., give it a few more days)
3. Grease and lube the actuator shafts. Maybe they're getting physically stuck at 100% open?

Can anyone please let me know precisely how to do step 3 if it gets to that? "High-temperature Oil Lubricant of Valve Actuators for Dummies" so to speak - like even a brand of lubricant and best way to apply if all I have are ramps and basic handtools?

 

I have the cargraphic valve controller installed on my 992.2 , there is definitely a noticeable difference with the valves opened vs OE opened. happy with the purchase.

 

I guess I'm just not noticing it. Will run some more tests and record some audio clips when I get the car back.

 

I just installed the Cargraphic valve controller on my 992.2 with PSE and the cold start is noticeably louder because the valves actually open now, as opposed to having to wait a minute or two for them to open before even with PSE enabled. However, I'm not noticing any real difference between PSE on and valves fully open once the cold start process is over. I could hear the difference pretty clearly in YouTube videos on the 992.1, so I'd think if I could pick it up on a video I'd definitely be able to notice it in person.

 

I just got back from a little drive and experimenting with the valves fully open vs PSE on. On my car, there's a huge difference during cold start because even with PSE on, the valves remain closed. In other words, during a cold start, both before and after I installed the Cargraphic valve controller, the valves remained closed for a minute or two. Toggling PSE on/off during this time frame made absolutely no difference until that time frame ended and the valves were allowed to open if PSE was enabled. Of course, now with the valve controller, they can open immediately and I now get the glorious cold start this car deserves. In addition, although I can't tell any difference between fully open and PSE on at idle after a cold start, I do notice a difference driving around at low RPMs - I feel like there's more of a deep rumble, both in terms of feel and sound, though it's not very noticeable even with the windows down. I am curious how it sounds from outside the car, though, while maneuvering at low RPMs. Perhaps the effect is greater?

Here's a quick video I captured showing the different valve positions at idle after cold start between full open and PSE on. Maybe the 992.2 has the valves open more with PSE on than in the 992.1?

 

Interesting, I see Nicky replying with stuff via email notifications but can't see anything past my last post. Trying to post something to see if it fixes my problem.
edit: nope, something definitely weird with my account

 

Same, I am also seeing the full post in the email subscription, but when I come to this thread, I don’t see the posts

 

Just took some quick videos of all the combinations of valve positions (what I'll refer to as PSE off, PSE on, and valves open for brevity) in the off, cold start, and warm operation modes. I didn't narrate it as I figured you'd want to hear the car and not me talking, and also I was pretty careful to show when I changed the state of the valves, both PSE and valve controller. Hopefully it's easy to follow along. Also didn't want to delay posting this just to figure out how to add some text or further refine the video (not my area of expertise).

Here's the video showing the positions while the engine is cold and off. I didn't notice any change whatsoever in valve position across the 3 valve modes prior to startup.

Here's the video showing the positions with the engine running during and after the cold start.

When I have someone available to assist, I can try to get video switching between PSE on and off during the ~2 minute cold start process to see if the valves move at all, but based on the video it appears they're in the same position - fully closed.

These videos align with my experience in terms of sound and feel. Basically the first 2 minutes of the engine running from cold, the valves are totally closed regardless of PSE being on or off, of course unless the valves are opened via the controller. As such, there's an incredibly noticeable improvement in sound during the first 2 minutes of the engine running with the valve controller. Once the engine has warmed up a bit, though (seemingly at 160 F for coolant temp the valves open, but perhaps just coincidence the couple times I checked), you can see the valves crack open and PSE actually makes a difference at that point on the stock configuration. Of course, at any time with the valve controller active, the valves open completely. As mentioned in my earlier post, the difference is rather minimal between PSE on and valves fully open in my 992.2 Carrera, but I do feel there's a slight bump in sound and even feel at low RPMs. Could just be placebo, so I'd need some more refined, controlled tests to verify this claim.

Two final thoughts:
1. Perhaps the 992.2 has less of a difference w/ a valve controller in that it may open the valves more than the 992.1 with PSE on, or maybe it's the extra filter in the .2 over the .1 that renders the difference less noticeable.
2. I see a couple of you guys have mentioned seeing my posts in the email notification but not on the thread; I've had this issue for a while and it seems all my messages must be approved first. I reached out via the contact us form to see if I can have that approval dropped so my posts aren't significantly delayed for you all. Any other thoughts are appreciated!

Edit: Looks like my posts are going through immediately now 🎉

 

buy a jcr exhaust and also add the cargraphic valve controller and youll be a happy camper

 

Thanks for the suggestion! I was thinking my next upgrade to the exhaust would be the Soul sport cats. Just want a little more noise and to hear that glorious turbo spool!

 

An update on car graphic. i put one on my S and it kept throwing "bank 1 exhaust singnal implausible" porsche could not get it to stay cleared. everything they tried failed. Ill add that kevntao was correct that the valves stay open in sport mode all the time