No low end power

JakeJB · 05-10-2018, 05:31 AM

Hi everyone, I am having an issue, and could use your help. I have been searching for hours. The answers are probably posted somewhere, but my lack of vocabulary on the subject is causing me to come up empty, or partially so.

2008 335XI, AFE DCI, Wagner FMIC, Cobb Stage 1+ FMIC.

I installed a new charge pipe and TIAL BOV tonight. I also tapped the intake, and ran a new 1/4 inch vacuum line. Install was straight forward. Buttoned it up, and went for a test drive. I have very low power from idle to about 3000 rpm, give or take. The engine sounds bogged down. Once I hit the higher RPM, the car takes off like a rocket, and feels great. I am thinking vacuum leak, or soft spring? Is there something more that I should be looking for? Will a vacuum leak or soft spring cause this issue?

Your help and direction is greatly appreciated!

grzes · 05-10-2018, 07:02 AM

How was the installation of the charge pipe straight forward, that shit is so hard to get in

but anyway, yesterday I had the silly power loss and then limp mode, in my case charge pipe got disconnected but again, I had no power in higher rpms and lower were low power but anyway, I would say check your connections, if you have the same connections for the charge pipe I know connecting it to the intercooler is a challenge, looks good, clip snaps but the pipe is not inserted properly and you will have a leak there or as in my case it will come off

TemjinX2 · 05-10-2018, 11:50 AM

sounds like a boost leak. i would recheck your connections especially the one from the charge pipe to the intercooler piping. also i would check the spring on the bov, some times they have a lower boost spring installed with the one they ship

320IN54 · 05-10-2018, 12:14 PM

Did you cover the stock vacuum nipple?

05-10-2018, 05:31 AM	#1
JakeJB New Member 0 Rep 18 Posts Drives: 2008 BMW 335xi Join Date: Jan 2015 Location: Ogden UT iTrader: (0)	No low end power Hi everyone, I am having an issue, and could use your help. I have been searching for hours. The answers are probably posted somewhere, but my lack of vocabulary on the subject is causing me to come up empty, or partially so. 2008 335XI, AFE DCI, Wagner FMIC, Cobb Stage 1+ FMIC. I installed a new charge pipe and TIAL BOV tonight. I also tapped the intake, and ran a new 1/4 inch vacuum line. Install was straight forward. Buttoned it up, and went for a test drive. I have very low power from idle to about 3000 rpm, give or take. The engine sounds bogged down. Once I hit the higher RPM, the car takes off like a rocket, and feels great. I am thinking vacuum leak, or soft spring? Is there something more that I should be looking for? Will a vacuum leak or soft spring cause this issue? Your help and direction is greatly appreciated!
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05-10-2018, 07:02 AM	#2
grzes Captain 33 Rep 655 Posts Drives: 2009 bmw 335d LCI Join Date: Feb 2014 Location: Alberta iTrader: (2)	How was the installation of the charge pipe straight forward, that shit is so hard to get in but anyway, yesterday I had the silly power loss and then limp mode, in my case charge pipe got disconnected but again, I had no power in higher rpms and lower were low power but anyway, I would say check your connections, if you have the same connections for the charge pipe I know connecting it to the intercooler is a challenge, looks good, clip snaps but the pipe is not inserted properly and you will have a leak there or as in my case it will come off
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05-10-2018, 11:50 AM	#3
TemjinX2 Major 529 Rep 1,493 Posts Drives: 2008 335xi e92 Join Date: Dec 2009 Location: Socal OC iTrader: (0)	sounds like a boost leak. i would recheck your connections especially the one from the charge pipe to the intercooler piping. also i would check the spring on the bov, some times they have a lower boost spring installed with the one they ship
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05-10-2018, 12:14 PM	#4
320IN54 First Lieutenant 130 Rep 336 Posts Drives: 2007 BMW 335i, 2021 BMW M2C Join Date: Jan 2017 Location: Irvine iTrader: (0)	Did you cover the stock vacuum nipple?
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