check engine light code P0171 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


General GM Chat When starting new posts, please specify YEAR, MAKE, MODEL, ENGINE type, and whatever modifications you have made. Chat about all things GM (and related cars). Off-topic stuff should be in the Lounge, and all Model specific mechanical problems should be posted in the proper forum.

Reply
 
 
 
Thread Tools Search this Thread
Old 12-10-2008, 09:53 AM   #1
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Sep 2007
Location: Greenville
Posts: 38
Thanks: 0
Thanked 0 Times in 0 Posts
RMCCALL869 is on a distinguished road
Question check engine light code P0171

Hi guys, I've read some past post on these problems, but haven't heard of any solutions yet.
I've got a 1997 SSE with a 1999 engine with 67,000 miles on it. The problem is the check engine light comes on periodically. I have it scanned and the problem is always P0171 too lean bank 1.
I've checked the vacumn leaks and haven't found anything yet. I've cleaned the injectors numerous times. If I leave the light on without scanning, it will go off again by itsself. I haven't changed any oxygen sensors yet. I understand from reading that Bosch isn't the one to replace any with in the Bonne. Any suggestions?
Thanks,
rmccall869
RMCCALL869 is offline   Reply With Quote
Old 12-10-2008, 10:13 AM   #2
Administratus Emeritus
Certified Car Nut
 
GXP Venom's Avatar
 
Join Date: Jan 2006
Location: Purgatory, Pennsylvania
Posts: 16,538
Thanked 7 Times in 4 Posts
GXP Venom is on a distinguished road
Default

EGR or Dirty MAF can set this code off as well. Even loose air intake fittings(or so I read). Have you tried cleaning the MAF sensor with an aerosol electronics cleaner?. I don't know about Bosch 02 sensors, their spark plugs dont like GM engines in general. If the 02 was faulty though, it would trip it'* own code.
GXP Venom is offline   Reply With Quote
Old 12-10-2008, 10:25 AM   #3
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Sep 2007
Location: Greenville
Posts: 38
Thanks: 0
Thanked 0 Times in 0 Posts
RMCCALL869 is on a distinguished road
Default

Thanks, I will try those. I haven't done that yet. Appreciate your help!
RMCCALL869 is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Check Engine light - Code P0171 and other issues - Updated BillBoost37 1992-1999 41 11-15-2011 08:30 AM
1998 Catera - Check Engine Light, ABS Light and TC light on lucille2 Cadillac 2 02-10-2011 11:58 AM
Traction Control Light & P0171 code 96 SE spit 1992-1999 1 11-20-2008 12:02 PM
Engine miss, check engine light on - NO code mdrose64 1992-1999 12 07-16-2007 12:43 PM
SES light code P0171 Baileyjack 2000-2005 3 08-04-2003 08:46 PM


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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 09:10 PM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.