971 - 971 coding for PSE
Thread Starter
Burning Brakes
Joined: Nov 2021
Posts: 1,184
Likes: 338
From: Houston, TX
971 coding for PSE
Reading another thread it seems my non PSE car has a different exhaust from PSE cars but still has valves? Am I reading that correctly? I do notice the car being louder on start up, but most cars idle high on cold start. It also gets louder when I turn on sport mode but I attributed that to the idle being increased. Is it possible to code a PSE button onto the PCM and if so who can do it, and is it worth it? On my Corvette these was a fuse I could pull to leave the sport exhaust open all the time, but those were simple vacuum actuated flaps.
Thread Starter
Burning Brakes
Joined: Nov 2021
Posts: 1,184
Likes: 338
From: Houston, TX
Thanks, I did read that post. I dont care to do all that tbh, as I'd probably spend 3-4K on an aftermarket exhaust if I wanted to do all that work. If the stock exhaust has valves too it would be nice to code it and go from there. I suppose with the PSE function on the valves stay open all the time? I dont know of anyone with a PIWIS and I'm not familiar with the Launch tool, but it looks promising for the price. I doubt the dealer would be interested in coding my car.
This looks neat, but I cant find anyone with firsthand experience with it.
Controller Package | CETE Porsche Panamera 971 Exhaust Valve (europrice.us)
This looks neat, but I cant find anyone with firsthand experience with it.
Controller Package | CETE Porsche Panamera 971 Exhaust Valve (europrice.us)
Racer
Joined: Mar 2021
Posts: 404
Likes: 161
From: Boston, MA
Thanks, I did read that post. I dont care to do all that tbh, as I'd probably spend 3-4K on an aftermarket exhaust if I wanted to do all that work. If the stock exhaust has valves too it would be nice to code it and go from there. I suppose with the PSE function on the valves stay open all the time? I dont know of anyone with a PIWIS and I'm not familiar with the Launch tool, but it looks promising for the price. I doubt the dealer would be interested in coding my car.
This looks neat, but I cant find anyone with firsthand experience with it.
Controller Package | CETE Porsche Panamera 971 Exhaust Valve (europrice.us)
This looks neat, but I cant find anyone with firsthand experience with it.
Controller Package | CETE Porsche Panamera 971 Exhaust Valve (europrice.us)
PSE button in the PCM will make the valves manually controllable, you can leave it on all the time if you wish. I've had it coded to my car using my PIWIS, not a big change even for my V8 to be honest, you would want to pair it with some hardware changes to get the most out of it.
Racer
Joined: Mar 2021
Posts: 404
Likes: 161
From: Boston, MA
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Thread Starter
Burning Brakes
Joined: Nov 2021
Posts: 1,184
Likes: 338
From: Houston, TX
I purchased from @rnlst_log from this thread I had him remote into the system and perform the PSE coding for me at the same time of him activating the matrix headlight coding.
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Rennlist Member
Joined: Jun 2020
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From: Chicagoland
I did the PSE coding on my P4ST without installing PSE hardware. There is no problem at all. Sound is like everyone said, pretty anemic. In sport mode, you can hear a subtle rumble that’s it. Valve opens at start and then close. You have to rev up to >4000 rpm in order for the valve to open while driving. Pretty hard to do even on the freeway unless you are doing manual mode and keep the gear in 3 or 4.
Thread Starter
Burning Brakes
Joined: Nov 2021
Posts: 1,184
Likes: 338
From: Houston, TX
I did the PSE coding on my P4ST without installing PSE hardware. There is no problem at all. Sound is like everyone said, pretty anemic. In sport mode, you can hear a subtle rumble that’s it. Valve opens at start and then close. You have to rev up to >4000 rpm in order for the valve to open while driving. Pretty hard to do even on the freeway unless you are doing manual mode and keep the gear in 3 or 4.
Racer
Joined: Mar 2021
Posts: 404
Likes: 161
From: Boston, MA
I would recommend having a solid power supply for flashing your vehicle. A trickle charger will not be enough to keep up with the voltage and amperage draw at the proper levels when coding.
It's also not advisable to be running the vehicle's engine when you are performing these operation.
It's also not advisable to be running the vehicle's engine when you are performing these operation.
Thread Starter
Burning Brakes
Joined: Nov 2021
Posts: 1,184
Likes: 338
From: Houston, TX
I would recommend having a solid power supply for flashing your vehicle. A trickle charger will not be enough to keep up with the voltage and amperage draw at the proper levels when coding.
It's also not advisable to be running the vehicle's engine when you are performing these operation.
It's also not advisable to be running the vehicle's engine when you are performing these operation.
Racer
Joined: Mar 2021
Posts: 404
Likes: 161
From: Boston, MA
I did the PSE coding on my P4ST without installing PSE hardware. There is no problem at all. Sound is like everyone said, pretty anemic. In sport mode, you can hear a subtle rumble that’s it. Valve opens at start and then close. You have to rev up to >4000 rpm in order for the valve to open while driving. Pretty hard to do even on the freeway unless you are doing manual mode and keep the gear in 3 or 4.
Thread Starter
Burning Brakes
Joined: Nov 2021
Posts: 1,184
Likes: 338
From: Houston, TX
I saw 90A in the manual but we’ll see. I am not renting the tool I’m buying an image from someone on this forum. He will remote in and do the PSE for free. I’m not expecting much but it’s better than nothing. This way I can have the PIWIS for maintenance next year instead of spending 300ish on a scan tool. Maybe I’ll DIY the actual exhaust later.