P0171-Running Too Lean Bank 1 - Chevy Cobalt Forum / Cobalt Reviews / Cobalt SS / Cobalt Parts
Problems and Service Talk about any mechanical problems you are having

 
LinkBack Thread Tools Display Modes
post #1 of 7 (permalink) Old 08-12-2013, 01:58 PM Thread Starter
Newcomer
 
Shay's Avatar
 
Join Date: Jul 2012
Posts: 4
Unhappy P0171-Running Too Lean Bank 1

I have a 06 cobalt 2.2 lt there are no modifications done.
I posted about this about a year ago on the issue.
Still trying to find the problem.
When the code pops up the drivability of the car is poor, it stumbles upon acceleration. Usually the only time the code pops up is when i get on it.
I have cleaned the maf, i have checked for vaccum leaks, replaced the fuel filter.
I was reading online the likely causes of this code.
-Fuel injectors
-o2 sensors
-or fuel pump which is a recall on certain cobalts. I have a letter from the dealer about it.

My only problem right now is i am nowhere near a gm/chevy dealer to get that fixed. I have had the car for two years and the same code pops up at random.

I have noticed over the last couple of months i have been getting a fuel odor but i haven't seen any gas leaking underneath the car.

And from what i was reading fuel odors can come from any one of those three items i listed.

Is there anyone out there that knows of a common problem with this code?
Right now i am leaning towards the front o2 sensor. But i would like some advice before i make my decision.

Thanks.
Shay is offline  
Sponsored Links
Advertisement
 
post #2 of 7 (permalink) Old 08-12-2013, 02:10 PM
Staff Alumni


 
kmac's Avatar
 
Join Date: Jun 2012
Location: Coxsackie, NY
Posts: 297
Well if you are under the recall, I would suggest taking a day trip or weekend if it's too far and going to the nearest dealership. The work would be free to you and if it doesn't work, hey you got a new fuel pump. That would be my first step anyway, then try to knock out the next likely cause.

kmac is offline  
post #3 of 7 (permalink) Old 08-12-2013, 02:17 PM
Super Moderator
Staff Alumni
YourCobalt of the Month Winner


 
Blackbalts's Avatar
 
Join Date: Aug 2011
Location: Burnsville, Minnesota
Posts: 5,481
Garage
Possible that your o2 sensor is just bad and is reading lean which is forcing the engine to run rich as faq. Get the pump replaced first, then possibly look into replacing the o2 sensor (OEM only). Shouldn't be an issue with your injectors, but you could run some cleaner through to possibly rule that out.


05 Mitsubishi Evolution 8
05 Chevy Cobalt LS (RIP 7/13/2013)
99 Nissan Altima GXE (Daily)
99 Subaru Legacy (Daily)
07 Jeep Liberty Limited (No longer the tow truck for the balt )

If you have questions and I'm not on please PM, notifications go straight to my phone 24/7.

My Showoff
Join YC on FB
Syndicate of Tuners.com
Blackbalts is offline  
 
post #4 of 7 (permalink) Old 08-12-2013, 02:21 PM Thread Starter
Newcomer
 
Shay's Avatar
 
Join Date: Jul 2012
Posts: 4
Thats kind of what i was thinking.
Going on vacation 4-6 hours away.
Assuming i have no problems thus far, should the car be ok to take on this drive there and back? It just scares me a little is all, because my tcm went out last year. But i believe it had nothing to do with this.
Shay is offline  
post #5 of 7 (permalink) Old 08-12-2013, 02:32 PM
Super Moderator
Staff Alumni
YourCobalt of the Month Winner


 
Blackbalts's Avatar
 
Join Date: Aug 2011
Location: Burnsville, Minnesota
Posts: 5,481
Garage
If it is indeed your sensor it's just throwing the code, nothing is acutally wrong. You could stop at any automotive place and have the code removed and continue on. If it's the fuel pump it could technically fail at any moment.


05 Mitsubishi Evolution 8
05 Chevy Cobalt LS (RIP 7/13/2013)
99 Nissan Altima GXE (Daily)
99 Subaru Legacy (Daily)
07 Jeep Liberty Limited (No longer the tow truck for the balt )

If you have questions and I'm not on please PM, notifications go straight to my phone 24/7.

My Showoff
Join YC on FB
Syndicate of Tuners.com
Blackbalts is offline  
post #6 of 7 (permalink) Old 10-07-2013, 03:00 PM
Forum Regular
 
Macky91's Avatar
 
Join Date: Jan 2013
Location: tulsa ok
Posts: 102
Garage
im having the same issues but ive also replaced my exchaust manifold with headers. Im thinking its just the O2 sensor...
Macky91 is offline  
post #7 of 7 (permalink) Old 10-07-2013, 03:04 PM
Super Moderator
YourCobalt.com Premium Member


 
Coby7's Avatar
 
Join Date: Oct 2011
Location: Magnetic Hill, New-Brunswick
Posts: 11,820
Garage
Restrict your intake with duct tape until you don't get the code anymore.

---------- Post added at 07:04 PM ---------- Previous post was at 07:02 PM ----------

Or maybe just adding a HYDRO sheild would be the perfect amount of restriction needed to eliminate the P0171 lean code.

I don't have shares in the company. lol

Every minute spent angry is a happy minute lost for ever and ever!!!
Drives 2016 Cocoa Buick Encore 1.4L Turbo auto KL4CJDSB2GB652675
Drives 2016 Sunset Orange Trax LT1 1.4L Turbo auto 3GNCJPSB8GL142716

Never drive faster than your guardian angel can fly
Coby7 is offline  
Sponsored Links
Advertisement
 
Closed Thread

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



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
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome