PIWIS Coding

Including the Spyder, GT4, and GT4RS
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blueline
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718socal wrote: Wed Mar 01, 2023 7:15 am
You're safe with me, I don't have any tomatoes :) Anything emission related features need to be addressed by a tune. Have you tried a valve opener?
Thanks!!

No valve opener trials. Based on what I have found out so far, it's baked into the electronics so maybe that type of alteration wouldn't work? Seems as though it would have to be a program change.

Anyway, something like that is not anything I'd tackle on my own - it's far out of my restricted wheelhouse and light years beyond my comfort zone.

Mine is a '22 TTS so I also need to be cognizant of making changes that Porsche might frown on (wty).
Tim
Current:
'26 911 Carrera S - PTS Verde British Racing Green
'24 Cayenne S - Algarve Blue Metallic
'21 718 Cayman GTS - Black
'22 911 Turbo S - Carmine Red
'21 718 Cayman GT4 - White
'11 GMC 1500 Quad Cab 4x4 - Black

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blueline wrote: Wed Mar 01, 2023 7:31 am
718socal wrote: Wed Mar 01, 2023 7:15 am
You're safe with me, I don't have any tomatoes :) Anything emission related features need to be addressed by a tune. Have you tried a valve opener?
Thanks!!

No valve opener trials. Based on what I have found out so far, it's baked into the electronics so maybe that type of alteration wouldn't work? Seems as though it would have to be a program change.

Anyway, something like that is not anything I'd tackle on my own - it's far out of my restricted wheelhouse and light years beyond my comfort zone.

Mine is a '22 TTS so I also need to be cognizant of making changes that Porsche might frown on (wty).
You need a tune to remove the pop/burbles from the exhaust. Softtronic or Cobb can do it. But you do risk your warranty.
--
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2022 Taycan CT4

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718socal wrote: Wed Mar 01, 2023 9:14 am Auto Start Stop Remember Last Mode
I know nothing of PIWIS except that it exists and what it accomplishes, but it appears to me to be similar (at least as far as intent goes) to Windows Registry.
Tim
Current:
'26 911 Carrera S - PTS Verde British Racing Green
'24 Cayenne S - Algarve Blue Metallic
'21 718 Cayman GTS - Black
'22 911 Turbo S - Carmine Red
'21 718 Cayman GT4 - White
'11 GMC 1500 Quad Cab 4x4 - Black

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718socal
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blueline wrote: Wed Mar 01, 2023 9:21 am
718socal wrote: Wed Mar 01, 2023 9:14 am Auto Start Stop Remember Last Mode
I know nothing of PIWIS except that it exists and what it accomplishes, but it appears to me to be similar (at least as far as intent goes) to Windows Registry.
PIWIS codes the modules to enable/disable features.

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blueline
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718socal wrote: Wed Mar 01, 2023 9:32 am
blueline wrote: Wed Mar 01, 2023 9:21 am
718socal wrote: Wed Mar 01, 2023 9:14 am Auto Start Stop Remember Last Mode
I know nothing of PIWIS except that it exists and what it accomplishes, but it appears to me to be similar (at least as far as intent goes) to Windows Registry.
PIWIS codes the modules to enable/disable features.
Similar to Windows Registry then, except PIWIS appears to be on a much smaller scale.
Tim
Current:
'26 911 Carrera S - PTS Verde British Racing Green
'24 Cayenne S - Algarve Blue Metallic
'21 718 Cayman GTS - Black
'22 911 Turbo S - Carmine Red
'21 718 Cayman GT4 - White
'11 GMC 1500 Quad Cab 4x4 - Black

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blueline wrote: Wed Mar 01, 2023 9:21 am
718socal wrote: Wed Mar 01, 2023 9:14 am Auto Start Stop Remember Last Mode
I know nothing of PIWIS except that it exists and what it accomplishes, but it appears to me to be similar (at least as far as intent goes) to Windows Registry.
Yes, it allows the operator to change software variable parameters. Ford does hex strings, so changing

here's a Ford example, the memory location 726-62-01 and then change the second byte.
Keyfob Panic Button BCM 726-62-01 x*xx xxxx xx-- 0=disabled, 1=2 clicks, 2=one click (default)

PIWIS is a bit easier since it's a table.
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