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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N55 Turbo Engine Tuning and Exhaust Modifications - 335i Tuning > Wastegate out of adjustment?



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      06-18-2019, 09:59 PM   #1
erzenble
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Wastegate out of adjustment?

Hey guys I just recently fixed my boost being way undertarget with a new boost solenoid. At first I was overboosting a bit but after driving it a bit now I'm underboosting 1-2 psi. Do you guys know if the dme adjusts the wastegate through adaptations at all? I'm thinking maybe my wastegate is out of adjustment manually?

What do you guys think? Thanks

Btw my car is a 2011 335xi n55 mhd stage 1.
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      06-19-2019, 12:07 AM   #2
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      06-19-2019, 08:24 AM   #3
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Quote:
Originally Posted by erzenble View Post
Hey guys I just recently fixed my boost being way undertarget with a new boost solenoid. At first I was overboosting a bit but after driving it a bit now I'm underboosting 1-2 psi. Do you guys know if the dme adjusts the wastegate through adaptations at all? I'm thinking maybe my wastegate is out of adjustment manually?

What do you guys think? Thanks

Btw my car is a 2011 335xi n55 mhd stage 1.
Its normal with these tunes. Almost everyone i know on stage 1 will be a couple psi under target. Nothing new.

On PPK tune i am right on target to the 0.02 PSI with OTS by twisted tuning always off target by 1-2 psi or more.
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      06-19-2019, 05:36 PM   #4
erzenble
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Quote:
Originally Posted by Pladi View Post
Its normal with these tunes. Almost everyone i know on stage 1 will be a couple psi under target. Nothing new.

On PPK tune i am right on target to the 0.02 PSI with OTS by twisted tuning always off target by 1-2 psi or more.
My boost was perfect at first so there was a definite change car feels different. Also my boost is undertarget at all rpm ranges not just wot.
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