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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > NA Engine (non-turbo) / Drivetrain / Exhaust Modifications > BPC MAFless tune



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      09-17-2018, 11:25 AM   #23
Noir
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Originally Posted by hassmaschine View Post
my MAF delete tune does NOT run in open loop. I specifically do not call it Alpha-N because it's not Alpha-N at all.
and this is the one you crafted?
and out of curiosity, how does it benefit from not being in an open loop??
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      09-17-2018, 12:36 PM   #24
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it's mostly based on the stock tunes, which from the factory do not use a MAF. They run perfectly without extra fuel consumption or poor idle (nothing I have ever noticed).

I have made a new file for desertman123 with settings from the S54 feedback loop to see if the adaptations don't go wacky due to headers. But on a car with stock manifolds, it runs like stock, because it is..
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      09-17-2018, 05:35 PM   #25
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Quote:
Originally Posted by hassmaschine View Post
it's mostly based on the stock tunes, which from the factory do not use a MAF. They run perfectly without extra fuel consumption or poor idle (nothing I have ever noticed).

I have made a new file for desertman123 with settings from the S54 feedback loop to see if the adaptations don't go wacky due to headers. But on a car with stock manifolds, it runs like stock, because it is..
Wow. Didnt know that first bit!
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