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ike84 · 04-12-2022, 06:11 AM

When pushing a new tune using piwis 2 software, you actually have the ability to only push fuel maps (it's almost as though Porsche expected engine swaps!) and leave the rest of the programming as is. Check out my thread in the diy section - this is what I did when I changed my MAF housing to a larger diameter. Btw, if you didn't change the MAF housing at first when you did the tune, you were likely running VERY rich (until the dme could bring it back into range using closed loop operations). I did the opposite - I put a larger MAF housing before pushing the 996 tune and the car ran so lean that it, well, let's just say it wasn't pretty...

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04-12-2022, 06:11 AM	#13
ike84 Registered User Join Date: Oct 2020 Location: KY Posts: 1,214	When pushing a new tune using piwis 2 software, you actually have the ability to only push fuel maps (it's almost as though Porsche expected engine swaps!) and leave the rest of the programming as is. Check out my thread in the diy section - this is what I did when I changed my MAF housing to a larger diameter. Btw, if you didn't change the MAF housing at first when you did the tune, you were likely running VERY rich (until the dme could bring it back into range using closed loop operations). I did the opposite - I put a larger MAF housing before pushing the 996 tune and the car ran so lean that it, well, let's just say it wasn't pretty... Sent from my SM-G970U1 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...