986 Forum - The Community for Porsche Boxster & Cayman Owners - View Single Post - ECU Tune for Boxster S

ike84 · 03-27-2023, 05:58 PM

Here's a link to my intake writeup

https://986forum.com/forums/diy-project-guides/79420-82-mm-throttle-body.html

The manifold runners are stock 986. They are plenty big enough. Everything else is scrapped together.

The clutch switch is is detailed in my build thread, about halfway down
https://986forum.com/forums/show-tell-gallery/82209-project-renegade.html

"For bonus points, yank out the clutch switch while you're there. There are 2 in there - one for the ignition sequence on US cars, and another that is a signal for the ecu to know when the clutch is depressed while driving. This is important because the ecu pulls timing while shifting to protect the clutch, aid in smoother shifts, yada yada. It also hurts acceleration while shifting and is a reason why you have to dig so deep to blip the throttle on this car when heel toe shifting.

To remove this is stupid easy - disconnect the wiring harness, twist 1/4 turn, and pull out (that's what she said). I actually did this before removing the assist spring housing just to free up a bit of space in there. Once the switch is out you can open it up and you find a series of contacts, a spring, and a ratcheted plunger. Remove the spring and reassemble. Then push the plunger all the way down and put it back where it belongs. Bingo Bango, the ecu will now always think your clutch is not engaged while driving and will not subsequently do all the aforementioned silliness. Remember though, shift responsibly or else..."

Sent from my SM-N975U using Tapatalk

03-27-2023, 05:58 PM	#6
ike84 Registered User Join Date: Oct 2020 Location: KY Posts: 1,216	Here's a link to my intake writeup https://986forum.com/forums/diy-project-guides/79420-82-mm-throttle-body.html The manifold runners are stock 986. They are plenty big enough. Everything else is scrapped together. The clutch switch is is detailed in my build thread, about halfway down https://986forum.com/forums/show-tell-gallery/82209-project-renegade.html "For bonus points, yank out the clutch switch while you're there. There are 2 in there - one for the ignition sequence on US cars, and another that is a signal for the ecu to know when the clutch is depressed while driving. This is important because the ecu pulls timing while shifting to protect the clutch, aid in smoother shifts, yada yada. It also hurts acceleration while shifting and is a reason why you have to dig so deep to blip the throttle on this car when heel toe shifting. To remove this is stupid easy - disconnect the wiring harness, twist 1/4 turn, and pull out (that's what she said). I actually did this before removing the assist spring housing just to free up a bit of space in there. Once the switch is out you can open it up and you find a series of contacts, a spring, and a ratcheted plunger. Remove the spring and reassemble. Then push the plunger all the way down and put it back where it belongs. Bingo Bango, the ecu will now always think your clutch is not engaged while driving and will not subsequently do all the aforementioned silliness. Remember though, shift responsibly or else..." Sent from my SM-N975U using Tapatalk __________________ 2000 Box Base, Renegade Stage 1 performance mods complete, more to come When the owners manual says that the laws of physics can't be broken by this car, I took it as a challenge...