E90Post
 


PYSPEED
 
BMW 3-Series (E90 E92) Forum > BMW E90/E92/E93 3-series General Forums > Regional Forums > Cobb malfunction?



 
 
Thread Tools Search this Thread
      08-26-2013, 08:42 PM   #1
gazzetta
Second Lieutenant
 
Drives: 2008 bmw 335i
Join Date: May 2013
Location: toronto

Posts: 219
iTrader: (0)

Cobb malfunction?

Hey guys, I've been running the latest version of cobbs tune for the past month, and recently my car has been really messed.

At around 3500 RPM my car starts sputting and loses a ton of power. The engine light comes on and it starts vibrating like mental. (Also feels like a boost leak) Only until I shut it off and turn it back on is when the engine light deactives.

This evening I wanted to show a friend for some advice, and the same thing happened, but the engine light stayed on even if I shut the car on and off.

So I plugged in my Cobb AP and went to trouble shooting- 3 codes came up.

Code 1 "P0306" cylinder 6 misfire detected

Code 2 "P29D2" misfire, cylinder 6

Code 3 "P2AAF" fuel pump, plausibility


So I cleared the codes and decided to uninstall the tune. Once uninstalled I took the car for a long ride. The car felt completely normal. I was booting it in all gears and no glitches were happening at all. However, It's extremely hard to compare it to the way it use to be... So it obviously felt slower because I'm used to the tune, but I'm still worried about the misfire or turbo with potential boost leaks.


I'm a bit afraid to install the tune now.
Do any of you fine gents have advice or similar stories?


2008 e93 335i manual


Cheers y'all
gazzetta is offline  
0
      08-26-2013, 10:11 PM   #2
AWTT335i
First Lieutenant
 
Drives: 335
Join Date: Aug 2013
Location: United states

Posts: 308
iTrader: (0)

It's a misfire. Either time to change the plugs or cylinder 6 ignition coil. Do you know how old your spark plugs are or how many miles are on them?
AWTT335i is offline  
0
      08-26-2013, 10:17 PM   #3
gazzetta
Second Lieutenant
 
Drives: 2008 bmw 335i
Join Date: May 2013
Location: toronto

Posts: 219
iTrader: (0)

Quote:
Originally Posted by AWTT335i
It's a misfire. Either time to change the plugs or cylinder 6 ignition coil. Do you know how old your spark plugs are or how many miles are on them?
Thanks for the reply. I think they're still original. 70k on the car.
I was my service light is also on and I was reading that hpfp usually go with a service reading.

"Service Engine Soon (SES) almost always accompanies an HPFP failure"
gazzetta is offline  
0
      08-27-2013, 08:25 PM   #4
Down_Shift
Second Lieutenant
 
Drives: Slay
Join Date: Jan 2011
Location: Beantown

Posts: 274
iTrader: (3)

Spark plugs.

The fp code will come up along with the misfires.

Swap out the plugs. While they are out. Swap coil 6 with coil 1. If the coil pack misfire moved to cylinder one. Then you know you need to replace that had coil.

Takes about 45 min DIY.
Down_Shift is offline  
0
      08-29-2013, 02:33 PM   #5
gazzetta
Second Lieutenant
 
Drives: 2008 bmw 335i
Join Date: May 2013
Location: toronto

Posts: 219
iTrader: (0)

Quote:
Originally Posted by Down_Shift
Spark plugs.

The fp code will come up along with the misfires.

Swap out the plugs. While they are out. Swap coil 6 with coil 1. If the coil pack misfire moved to cylinder one. Then you know you need to replace that had coil.

Takes about 45 min DIY.
Thanks a lot man!
gazzetta is offline  
0
 

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 03:23 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