Boost leak with no codes?

davideg07 · Today, 08:01 AM

Hello I just graphed a log for my tuner and he said that I have a massive boost leak, but the car was pulling great with no issues at all. Is it possible that the log got messed up??

I did a WOT log in 3rd gear with no issues at all.

davideg07 · Today, 08:08 AM

Quote:

Originally Posted by davideg07

Hello I just graphed a log for my tuner and he said that I have a massive boost leak, but the car was pulling great with no issues at all. Is it possible that the log got messed up??

I did a WOT log in 3rd gear with no issues at all.

https://datazap.me/u/ghalye92/wot-log-3rd-gear?log=0&data=3-21

lookalikehuuh · Today, 10:13 AM

According to the log you posted here it wasn't wide open throttle, highest throttle position was 69%

The log also says you are only hitting 3PSI peak boost, while the car is targeting 18.4psi. If you say the car was pulling good then you may have failed MAP sensor or something going on there. Do you have the OE MAP sensor or the 3.5 bar one?

Fuel AFRs seem pretty lean to me as well... Kind of a multitude of issues with this log.

davideg07 · Today, 10:16 AM

Quote:

Originally Posted by lookalikehuuh

According to the log you posted here it wasn't wide open throttle, highest throttle position was 69%

The log also says you are only hitting 3PSI peak boost, while the car is targeting 18.4psi. If you say the car was pulling good then you may have failed MAP sensor or something going on there. Do you have the OE MAP sensor or the 3.5 bar one?

Fuel AFRs seem pretty lean to me as well... Kind of a multitude of issues with this log.

I have a 3.5 bar

Today, 08:01 AM	#1
davideg07 Registered 3 Rep 14 Posts Drives: 2008 Bmw 335xi Join Date: Jul 2024 Location: New Jersey iTrader: (0)	Boost leak with no codes? Hello I just graphed a log for my tuner and he said that I have a massive boost leak, but the car was pulling great with no issues at all. Is it possible that the log got messed up?? I did a WOT log in 3rd gear with no issues at all.
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Today, 10:13 AM	#3
lookalikehuuh Major 978 Rep 1,497 Posts Drives: 2006 330i, 2007 335i Join Date: Sep 2014 Location: San Diego, CA iTrader: (0)	According to the log you posted here it wasn't wide open throttle, highest throttle position was 69% The log also says you are only hitting 3PSI peak boost, while the car is targeting 18.4psi. If you say the car was pulling good then you may have failed MAP sensor or something going on there. Do you have the OE MAP sensor or the 3.5 bar one? Fuel AFRs seem pretty lean to me as well... Kind of a multitude of issues with this log.
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