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      08-15-2018, 01:38 AM   #40
cookiesowns
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Drives: X5 45e, 535i N54, X3 N55
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Quote:
Originally Posted by ashburyn54 View Post
The MAF part? Or do you think there isn't an oxygen sensor relaying information in the same fashion? It is wideband. Or just are you referring to Terry's suggestion When he doesn't want to fix something lol
Yes the MAF part. With the stock N55 ROM logic the MAF plays a role in changes in fueling along with some other air calculation checks. It's mostly used as sanity checking in those moments but can definitely influence smoothness of the car.

MAF is necessary when valvetronic goes into failsafe mode.

Overall these cars use a hybrid speed density setup but it's much more sophisticated than simply "unplugging the MAF"
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