BMW M3 Forum (E90 E92)

BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read


Go Back   M3Post - BMW M3 Forum > E90/E92 M3 Technical Topics > Mechanical Maintenance: Break-in / Oil & Fluids / Servicing
 
GetBMWParts
Post Reply
 
Thread Tools Search this Thread
      05-04-2013, 01:24 PM   #45
a0s4957
New Member
 
Drives: 2008 M3 - Interlagos Blue
Join Date: Apr 2013
Location: Houston, Texas

Posts: 5
iTrader: (0)

Garage List
2008 BMW M3  [0.00]
Eric,
Thanks for your help, i think you are right. I am going to first fix a leaks in the exhaust i found. If this doesn address it i will move to changing both o2 sensors.
Thanks,
Andres
__________________
08 Interlagos Blue M3 | ACSchnitzer front lip, Hamman rear difuser, Vossen 20" wheels, Remus exhaust| http://razzi.me/albums/11942-bimmer
a0s4957 is offline  
0
Reply With Quote
      05-05-2013, 11:37 AM   #46
elm3
M3 Lover
 
elm3's Avatar
 
Drives: 2009 e92 M3 Interlagos Blue
Join Date: Sep 2008
Location: Canton, GA.

Posts: 1,847
iTrader: (1)

Garage List
Quote:
Originally Posted by a0s4957 View Post
Eric,
Thanks for your help, i think you are right. I am going to first fix a leaks in the exhaust i found. If this doesn address it i will move to changing both o2 sensors.
Thanks,
Andres
Actually some of your problem could be vacuum leak. So yeah, fix the exhaust before you replace the O2 sensors.
__________________
'09 E92 ///M3 Interlagos Blue, 6MT, Silver Novillo Leather, CF Trim, Premium Package, Technology Package, Cold Weather Package, Premium Sound, 19" Wheels, Moonroof-Toy/ '11 E90 328i Black Saphire Metallic, Premium Package, Technology Package - Daily Driver '02 Nissan Xterra- Daily Driver/ '04 Yamaha R1-Toy/ '06 Yamaha Raptor 350-Toy
elm3 is offline   United_States
0
Reply With Quote
      05-07-2013, 09:51 PM   #47
a0s4957
New Member
 
Drives: 2008 M3 - Interlagos Blue
Join Date: Apr 2013
Location: Houston, Texas

Posts: 5
iTrader: (0)

Garage List
2008 BMW M3  [0.00]
Quote:
Originally Posted by elm3 View Post
Actually some of your problem could be vacuum leak. So yeah, fix the exhaust before you replace the O2 sensors.
So here is the update, after fixing said leak i drove around for about a day. During that time frame the SES light went off, and the next day it came back on. The only two things that changed was the fact that i put gas in the car, and that the weather got significantly cooler and dryer. Hence, i am now leaning towards me needing to replace the oxygen sensors (upstream). Thoughts?
__________________
08 Interlagos Blue M3 | ACSchnitzer front lip, Hamman rear difuser, Vossen 20" wheels, Remus exhaust| http://razzi.me/albums/11942-bimmer
a0s4957 is offline  
0
Reply With Quote
      05-08-2013, 06:52 AM   #48
elm3
M3 Lover
 
elm3's Avatar
 
Drives: 2009 e92 M3 Interlagos Blue
Join Date: Sep 2008
Location: Canton, GA.

Posts: 1,847
iTrader: (1)

Garage List
Quote:
Originally Posted by a0s4957 View Post
So here is the update, after fixing said leak i drove around for about a day. During that time frame the SES light went off, and the next day it came back on. The only two things that changed was the fact that i put gas in the car, and that the weather got significantly cooler and dryer. Hence, i am now leaning towards me needing to replace the oxygen sensors (upstream). Thoughts?
Did you pull the codes? What were they? Check for vacuum leaks around the intake. Check the plugs, one by one. Try the small and cheap stuff first. I still say that you might have a coil that is going bad. See if the same cylinder is at fault. Let me know.
__________________
'09 E92 ///M3 Interlagos Blue, 6MT, Silver Novillo Leather, CF Trim, Premium Package, Technology Package, Cold Weather Package, Premium Sound, 19" Wheels, Moonroof-Toy/ '11 E90 328i Black Saphire Metallic, Premium Package, Technology Package - Daily Driver '02 Nissan Xterra- Daily Driver/ '04 Yamaha R1-Toy/ '06 Yamaha Raptor 350-Toy
elm3 is offline   United_States
0
Reply With Quote
      05-20-2013, 01:03 PM   #49
a0s4957
New Member
 
Drives: 2008 M3 - Interlagos Blue
Join Date: Apr 2013
Location: Houston, Texas

Posts: 5
iTrader: (0)

Garage List
2008 BMW M3  [0.00]
Quote:
Originally Posted by elm3 View Post
Did you pull the codes? What were they? Check for vacuum leaks around the intake. Check the plugs, one by one. Try the small and cheap stuff first. I still say that you might have a coil that is going bad. See if the same cylinder is at fault. Let me know.
The car went in and these were the codes pulled:
27BB AND 27BA -- Fuel system Lambda
2722 Fuel-pressure sensor, signal
2786 Plausibility, fuel-pressure sensor, to mechanical pressure regulator
2B3B and 2B48 cyl. 7 misfire and exhaust

We replaced the cyl. coil to address the misfire. The shop is telling me that the fuel pump control unit has gone out. It has been ordered and it should arrive today or tomorrow. I am tempted to swith the low pressure fuel sensor before the more expensive control unit. Thoughts?
__________________
08 Interlagos Blue M3 | ACSchnitzer front lip, Hamman rear difuser, Vossen 20" wheels, Remus exhaust| http://razzi.me/albums/11942-bimmer
a0s4957 is offline  
0
Reply With Quote
      05-20-2013, 01:47 PM   #50
elm3
M3 Lover
 
elm3's Avatar
 
Drives: 2009 e92 M3 Interlagos Blue
Join Date: Sep 2008
Location: Canton, GA.

Posts: 1,847
iTrader: (1)

Garage List
Quote:
Originally Posted by a0s4957 View Post
The car went in and these were the codes pulled:
27BB AND 27BA -- Fuel system Lambda
2722 Fuel-pressure sensor, signal
2786 Plausibility, fuel-pressure sensor, to mechanical pressure regulator
2B3B and 2B48 cyl. 7 misfire and exhaust

We replaced the cyl. coil to address the misfire. The shop is telling me that the fuel pump control unit has gone out. It has been ordered and it should arrive today or tomorrow. I am tempted to swith the low pressure fuel sensor before the more expensive control unit. Thoughts?
I would too. Because a lot of the time, you can not return a special ordered electrical component. The low pressure sensor is not that expensive. Let me know.
__________________
'09 E92 ///M3 Interlagos Blue, 6MT, Silver Novillo Leather, CF Trim, Premium Package, Technology Package, Cold Weather Package, Premium Sound, 19" Wheels, Moonroof-Toy/ '11 E90 328i Black Saphire Metallic, Premium Package, Technology Package - Daily Driver '02 Nissan Xterra- Daily Driver/ '04 Yamaha R1-Toy/ '06 Yamaha Raptor 350-Toy
elm3 is offline   United_States
0
Reply With Quote
Post 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 12:26 AM.




m3post
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