1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

Finally stored a code.

Thread Tools
 
Search this Thread
 
Old 11-02-2007, 01:57 PM
  #21  
Senior Member
Certified Car Nut
 
J Wikoff's Avatar
 
Join Date: Mar 2003
Posts: 12,433
Likes: 0
Received 2 Likes on 2 Posts
J Wikoff is on a distinguished road
Default

Take a look at the BLM (long term fuel trim). 128 is desired, higher is lean, lower is rich.

Was the 44 running, at idle, or with the vacuum line pulled off the pressure regulator?
Old 11-02-2007, 01:59 PM
  #22  
Senior Member
Posts like a Northstar
Thread Starter
 
Blownville's Avatar
 
Join Date: Jul 2006
Location: Waukesha, Wisconsin
Posts: 547
Likes: 0
Received 0 Likes on 0 Posts
Blownville is on a distinguished road
Default

The pressure was at idle and it was about 47 with the line removed.
Old 11-02-2007, 05:35 PM
  #23  
Senior Member
Posts like a Northstar
Thread Starter
 
Blownville's Avatar
 
Join Date: Jul 2006
Location: Waukesha, Wisconsin
Posts: 547
Likes: 0
Received 0 Likes on 0 Posts
Blownville is on a distinguished road
Default

Ok I scanned on the way home and only saw 1 degree of KR during the trip and kinda got it to do its thing in 2nd gear with no KR but didn't sound right. The fuel trims seem to bounce around. I see like 119 at idle and bouncing between 128 to 140 driving and at WOT. I am guessing that I am running lean then?
Old 11-03-2007, 06:46 PM
  #24  
Senior Member
Posts like a Northstar
Thread Starter
 
Blownville's Avatar
 
Join Date: Jul 2006
Location: Waukesha, Wisconsin
Posts: 547
Likes: 0
Received 0 Likes on 0 Posts
Blownville is on a distinguished road
Default

Ok I just scanned for a half hour drive and found the LT to stay around 124-130 while driving and the ST was bouncing all over between 119 at idle and 140 while driving. The IAT was at 90-95, and TPS voltage bottomed WOT at about 4.20V. I do remember on my way to work on friday I gave about 3/4 throttle and saw my boost gauge jump to about 8psi and instantly fall back to about 5-6 psi. Maybe it it the BCA. I don't know but I thought I would give an update with numbers.
Old 11-04-2007, 05:22 PM
  #25  
Senior Member
Certified Car Nut
 
J Wikoff's Avatar
 
Join Date: Mar 2003
Posts: 12,433
Likes: 0
Received 2 Likes on 2 Posts
J Wikoff is on a distinguished road
Default

You can rule out the BCA if you pull off the bottom line from it. If you can't recreate the boost dump, it'* the BCS failing or PCM commanding a dump. I don't think you should be compensating for a lean condition on purpose, looking at your mods. I'm wondering about vacuum leaks or FPR, possibly.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
SignOfZeta
1992-1999
6
01-13-2010 11:34 AM
technologic80
1992-1999
2
12-27-2009 10:01 PM
1993 SLE
2000-2005
10
08-15-2007 10:00 PM
MACDRIVE
Buick
2
07-25-2006 06:54 PM
suctoes
1992-1999
11
11-27-2005 02:32 PM



Quick Reply: Finally stored a code.



All times are GMT -4. The time now is 12:31 PM.