E90Post
 


GTB Performance
 
BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N55 Turbo Engine Tuning and Exhaust Modifications - 335i Tuning > Run roh after dp install



Reply
 
Thread Tools Search this Thread
      02-02-2014, 03:54 PM   #1
Sidewinderpb
Chef don't judge
 
Drives: 2011 e92 335i xDrive 6MT
Join Date: Nov 2013
Location: Norwalk, CT

Posts: 780
iTrader: (4)

Run roh after dp install

Alrighty,

So I installed a BMS catless dp on my 2011 e92 335i yesterday. First impressions: pure awesomeness.

Weird issue: once in a while, when I press the gas, nothing happens - at all. I can floor it and the car will go nowhere. After a few seconds, everything goes back to normal.

I have a BMS dp, BMS intake, and a JB4 Stage 2.

Any ideas? Blown chargepipe?
Sidewinderpb is offline  
0
Reply With Quote
      02-02-2014, 05:02 PM   #2
135Pats
Saving for a big ass turbo or an A3...IDK which.
 
135Pats's Avatar
 
Drives: 135i
Join Date: May 2012
Location: Maryland

Posts: 5,344
iTrader: (1)

I don't quite get it- the car is literally resistant to throttle inputs? Does it rev? Does the motor clearly cut out?

It's almost impossible for the downpipes to be causing what you are describing, you could run the car without downpipes and it wouldn't simply cease responding to throttle. I'm not sure if i've ever heard of such a problem, it could be any number of things electronic or hardware related.
__________________
E88 FBO N54 Alpinweiss/Coral Red/Meisterschaft Race/Berk Resonated/Macht Schnell 3"/ER CP/Synapse/VRSF FMIC/FFTEC LPFP/HFS-4 DO Stainless Lines/BMS DCI/BMS Thermostat Delete/Rob Beck PCV Valve + Cap/BMS OCC/PTF E50/ST Coilovers/M3 Front Control Arms + Tension Rods/M3 Subframe Bushings/M3 FSB/DINAN Camber Plates/Apex ARC-8/Project Kics/Macht Schnell Studs/VAC Hubs/Rogue Transmission Mounts/Alpina TCU Flash/Icarbon/Kerscher/BMW Performance
135Pats is online now   United_States
0
Reply With Quote
      02-02-2014, 07:00 PM   #3
melloww22
Lieutenant
 
melloww22's Avatar
 
Drives: 2011 335i E90
Join Date: Apr 2011
Location: San Diego

Posts: 572
iTrader: (1)

Did this occur within minutes after install? Let the car adjust... Drive it normal with small burst for a few days
melloww22 is offline  
0
Reply With Quote
      02-02-2014, 09:59 PM   #4
Sidewinderpb
Chef don't judge
 
Drives: 2011 e92 335i xDrive 6MT
Join Date: Nov 2013
Location: Norwalk, CT

Posts: 780
iTrader: (4)

Yeah I'll keep driving it to see if it rounds out.
Correct, throttle does absolutely nothing; no revs or anything.

I also did the ISO 5.3 update a few days earlier, but didn't run into any issues until I installed the downpipe.

Thanks for the input!
Sidewinderpb is offline  
0
Reply With Quote
      02-02-2014, 11:33 PM   #5
Sidewinderpb
Chef don't judge
 
Drives: 2011 e92 335i xDrive 6MT
Join Date: Nov 2013
Location: Norwalk, CT

Posts: 780
iTrader: (4)

Is ISO 5.3 not the newest firmware?
Sidewinderpb is offline  
0
Reply With Quote
      02-02-2014, 11:41 PM   #6
Jdub679
Lieutenant
 
Drives: 2011 BMW 335i coupe
Join Date: Jan 2011
Location: Irvine, CA

Posts: 492
iTrader: (1)

Quote:
Originally Posted by Sidewinderpb View Post
Is ISO 5.3 not the newest firmware?
It is
Jdub679 is offline  
0
Reply With Quote
      02-02-2014, 11:53 PM   #7
Jeff@TopGearSolutions
BimmerPost Supporting Vendor

 
Jeff@TopGearSolutions's Avatar
 
Drives: C6 Z06, GSXR-750, 09 335i
Join Date: Dec 2008
Location: TopGearSolutions.com

Posts: 16,695
iTrader: (31)

Send a message via AIM to Jeff@TopGearSolutions
Is it possible on the N55 to put the o2 sensors on backwards? I know it's possible on the N54.
Jeff@TopGearSolutions is offline   United_States
0
Reply With Quote
      02-03-2014, 07:48 AM   #8
Sidewinderpb
Chef don't judge
 
Drives: 2011 e92 335i xDrive 6MT
Join Date: Nov 2013
Location: Norwalk, CT

Posts: 780
iTrader: (4)

Quote:
Originally Posted by Jeff@TopGearSolutions View Post
Is it possible on the N55 to put the o2 sensors on backwards? I know it's possible on the N54.
Would that cause this issue?

Oh man, I would feel like such a dick if I did. I guess I could try to switch the plugs up top?
Sidewinderpb is offline  
0
Reply With Quote
      02-03-2014, 10:37 AM   #9
Tiago@VRSF
BimmerPost Supporting Vendor

 
Tiago@VRSF's Avatar
 
Drives: E92 335i, F30 328i, F82 M4
Join Date: Dec 2007
Location: Hudson, MA

Posts: 6,249
iTrader: (92)

Garage List
Send a message via AIM to Tiago@VRSF
I can see how the o2 sensors may be swapped depending on the proximity of the two bungs though. I'm not sure if the plugs are interchangeable though.

It sounds more like a large boost leak. If you have can-clear enabled, turn it off and wait for a CEL or visually inspect your charge pipe connections for damage or detachments. Either that or you may have a large exhaust leak but that should be audibly apparent.
Tiago@VRSF is offline   United_States
0
Reply With Quote
      02-03-2014, 07:20 PM   #10
Sidewinderpb
Chef don't judge
 
Drives: 2011 e92 335i xDrive 6MT
Join Date: Nov 2013
Location: Norwalk, CT

Posts: 780
iTrader: (4)

Thanks for the input!
I'll check the charge pipe tomorrow. Hopefully the o2's aren't swapped. I really doubt that there is an exhaust leak. I did it up on a lift at my uncles shop. He helped too. Can clear is disabled.

The weird part is that I can run it WOT perfectly fine. It's just ~once per day, I'll hit the throttle casually driving, and there wil be no feedback.
Sidewinderpb is offline  
0
Reply With Quote
      02-03-2014, 09:03 PM   #11
boris
Борис
 
boris's Avatar
 
Drives: POS 335i
Join Date: Nov 2012
Location: CT/NY

Posts: 412
iTrader: (0)

Check all connections in the plumbing, FMIC - Charge Pipe.
__________________
07 SG 335i
COBB - Burger Motorsports - Evolution Racewerks - TiAL- AMS
boris is offline   United_States
0
Reply With Quote
      02-04-2014, 10:01 AM   #12
Sidewinderpb
Chef don't judge
 
Drives: 2011 e92 335i xDrive 6MT
Join Date: Nov 2013
Location: Norwalk, CT

Posts: 780
iTrader: (4)

Yeah will do. It has to be a vacuum issue.

Another thing is that sometimes the car starts hauling if I press the throttle in about 1mm. It feels like downshifting in a steptronic. Something isn't sealed right.
Sidewinderpb is offline  
0
Reply With Quote
      02-04-2014, 06:53 PM   #13
Sidewinderpb
Chef don't judge
 
Drives: 2011 e92 335i xDrive 6MT
Join Date: Nov 2013
Location: Norwalk, CT

Posts: 780
iTrader: (4)

Alright let's keep this list of problems going!

Now, every few seconds, my fan kicks into hyperdrive and gets really loud. It lasts about 4 seconds, and then starts up again a few seconds after that. It's a continuous cycle.

I'm wondering if it has to do with the ISO 5.3, since I did the update one day prior to installing the dp.
Sidewinderpb is offline  
0
Reply With Quote
      02-04-2014, 07:18 PM   #14
loesch
First Lieutenant
 
loesch's Avatar
 
Drives: 2011 BMW 135i M Sport
Join Date: Feb 2012
Location: State College, PA

Posts: 367
iTrader: (2)

It's not a problem to flash back to the older firmware, as long as it's ISO. I would try that.
loesch is offline   United_States
0
Reply With Quote
      02-04-2014, 07:27 PM   #15
Sidewinderpb
Chef don't judge
 
Drives: 2011 e92 335i xDrive 6MT
Join Date: Nov 2013
Location: Norwalk, CT

Posts: 780
iTrader: (4)

Good call; I'll give that a shot. Not sure what firmware I started at - probably pre ISO.
Sidewinderpb is offline  
0
Reply With Quote
      02-06-2014, 01:13 PM   #16
Sidewinderpb
Chef don't judge
 
Drives: 2011 e92 335i xDrive 6MT
Join Date: Nov 2013
Location: Norwalk, CT

Posts: 780
iTrader: (4)

So I think the water pump is failing. Taking to dealership tomorrow.
Sidewinderpb is offline  
0
Reply With Quote
      02-11-2014, 09:33 AM   #17
Sidewinderpb
Chef don't judge
 
Drives: 2011 e92 335i xDrive 6MT
Join Date: Nov 2013
Location: Norwalk, CT

Posts: 780
iTrader: (4)

So the water pump failed. I just got it back from the dealership yesterday, who replaced it under warranty.

I removed the intake before taking it to the dealer, but left the JB4 and the downpipe in.

The fan issue was fixed by replacing the water pump, and somehow the throttle issue has yet to show its face.

However, I did just get a "Service Engine Soon" light on my way into work this morning. Is it possible that the techs forgot to reset it?
Sidewinderpb is offline  
0
Reply With Quote
      02-11-2014, 06:32 PM   #18
j23a45m
First Lieutenant
 
j23a45m's Avatar
 
Drives: 2011 E90 335
Join Date: Aug 2013
Location: Lancaster, Pa

Posts: 359
iTrader: (5)

Garage List
Quote:
Originally Posted by Sidewinderpb View Post
So the water pump failed. I just got it back from the dealership yesterday, who replaced it under warranty.

I removed the intake before taking it to the dealer, but left the JB4 and the downpipe in.

The fan issue was fixed by replacing the water pump, and somehow the throttle issue has yet to show its face.

However, I did just get a "Service Engine Soon" light on my way into work this morning. Is it possible that the techs forgot to reset it?
their is no dp fix for n55, jb4 will hide the ses if you activate it to do so!
__________________
2011 BSM 335i E90 MTECH 6MT JB4 stage 2 iso 5.3 BMS Intake Vishnu DP Cyba Scoops LUX V4 6000K Headlight/Fog light Philips Ultinon Euro headlight switch ACS roof wing 35% tint Black Grilles Misc coding AA charge pipe ///M3 fenders 335is pedals Bmw Performance spoiler
j23a45m is offline   United_States
0
Reply With Quote
      02-11-2014, 08:07 PM   #19
Sidewinderpb
Chef don't judge
 
Drives: 2011 e92 335i xDrive 6MT
Join Date: Nov 2013
Location: Norwalk, CT

Posts: 780
iTrader: (4)

Yeah thought so too.

I'm getting some codes though.

2e4c - normal; exhaust flap actuator unplugged
3106 - catalytic converter
29e0 - charge air temp sensor
29d0 - intake air temp sensor

I get the feeling that these are regarding the sensors that the JB4 intercepts.

I cleared them before I left work today, drove home, installed my chargepipe, and started her up. The codes were back.
Sidewinderpb is offline  
0
Reply With Quote
Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -5. The time now is 03:45 PM.




e90post
Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST