O2 Sensor Lean...Tried Everything - Page 5 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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.

Reply
 
 
 
Thread Tools Search this Thread
Old 04-03-2008, 02:24 AM   #41
Senior Member
Certified GM nut
 
Join Date: Oct 2005
Location: Western New York
Posts: 1,942
Thanks: 0
Thanked 0 Times in 0 Posts
Technical Ted is on a distinguished road
Default

beaujo700 - When you set up the scanner did you choose the Global OBD II Diagnostics option or go through the menu & choose 1995 Pontiac Bonneville?

tan96ssei - OBD 1.5 is an OBD 1 computer with the OBD 2 diagnostic link connector. He should have a 2 digit code. I sent an email to Actron, let'* see what they have to say.
Technical Ted is offline   Reply With Quote
Old 04-03-2008, 03:33 AM   #42
Junior Member
Posts like a Ricer Type-R
Thread Starter
 
Join Date: Mar 2008
Location: Cardiff, Ca
Posts: 23
Thanks: 0
Thanked 0 Times in 0 Posts
beaujo700 is on a distinguished road
Default

Thanks Ted...Let me know if you come up with something...I'll do the same.
beaujo700 is offline   Reply With Quote
Old 04-03-2008, 04:09 AM   #43
Junior Member
Posts like a Ricer Type-R
Thread Starter
 
Join Date: Mar 2008
Location: Cardiff, Ca
Posts: 23
Thanks: 0
Thanked 0 Times in 0 Posts
beaujo700 is on a distinguished road
Default

So I checked and I'm using the specific make model year etc...not the Global setting. So it is pulling 4 digit codes even though its obd 1compliant...thought id let you know. Oh and I meant Tan not Ted on my last post...Oops!...Thanks to everyone who has tried to help me solve this mystery..hopefully there will be a victory here. I'm currently driving on an incomplete registration...Eeek!...Will have to go to DMV and try to get an extension.
beaujo700 is offline   Reply With Quote
Old 04-03-2008, 02:41 PM   #44
Senior Member
Certified GM nut
 
Join Date: Oct 2005
Location: Western New York
Posts: 1,942
Thanks: 0
Thanked 0 Times in 0 Posts
Technical Ted is on a distinguished road
Default

Two members have informed me that the 94 & 95'* do use the P codes. One of them has the same scanner & is trying to help a friend with the same code.

Will the scanner display the freeze frame data? If you can't get the freeze frame data can you tell us if the code is thrown at a certain RPM, speed or in a certain gear?

Some members in the past have cured the very similar P0171 code by changing battery cables. I'd like you try adding another ground wire from the engine to body. Use a fairly heavy gauge wire & leave some slack for engine movement.
Technical Ted is offline   Reply With Quote
Old 04-03-2008, 05:43 PM   #45
Senior Member
True Car Nut
 
Join Date: May 2005
Location: _Phoenix, AZ_ _WCBF '05, '06, '07 Survivor_ ____NEBF '07 Remnant___
Posts: 3,448
Thanks: 0
Thanked 0 Times in 0 Posts
Echo SSEI is on a distinguished road
Default

Quote:
Originally Posted by Technical Ted
One of them has the same scanner & is trying to help a friend with the same code.
Guilty as charged FWIW, I know my friend here at work, (he is a member here, but has never posted), has said his '95 SE was throwing the P0131 only when he is in Park, after idling for several minutes. I suggested he start off by rerouting his 02 wires since they were laying on the back valve cover and seemed a little pinched and twisted in the path and the manner in which it was connected, before we go through the more formal diagnosis. It is a spare car for him, so he doesn't drive it often, though, so I don't think he has done anything yet.
Echo SSEI is offline   Reply With Quote
Old 04-03-2008, 09:41 PM   #46
Junior Member
Posts like a Ricer Type-R
Thread Starter
 
Join Date: Mar 2008
Location: Cardiff, Ca
Posts: 23
Thanks: 0
Thanked 0 Times in 0 Posts
beaujo700 is on a distinguished road
Default

Ok..so i Lgot a ground cable 4 gauge and mounted it to the ICM bracket and the ground point on the fender next to the battery. No change. So just for kicks I tested the RPMs the rich/lean fluctuations occur at 1100+ RPMs. I also wrote down all the data I thought would be of any concern.

Battery Voltage 13.4
LT Fuel Trim 149
LT Fuel Tr Cl 0
Evap Duty 24
Evap Solenoid ON
Coolent Temp 212
EGR Valve Position (V) .69
Engine RPM 725-750
Exhaust O2 LEAN
FC1 off
FC2 off
IAC Pos 29
Inj PW (ms) 3.5
ST Fuel Trim 182
Loop Status CLSD
MAF(gr/*) 3
IAT (F) 118
O2S (Mv) 40
Spark Adv 14
TCC Applied NO
TCC Brake Sw ON
TCC Slip RPM 255
TCC Sol OFF
TPS Sensor(V) .33
Trans Temp 169

It all seems within range from what I've read, but you never know. I will be waiting patiently for anyone who has any more thoughts or suggestions...THANKS TO ALL!!
beaujo700 is offline   Reply With Quote
Old 04-04-2008, 09:23 PM   #47
Junior Member
Posts like a Ricer Type-R
Thread Starter
 
Join Date: Mar 2008
Location: Cardiff, Ca
Posts: 23
Thanks: 0
Thanked 0 Times in 0 Posts
beaujo700 is on a distinguished road
Default

So I was driving today and going through the usual what ifs and was wondering if my TPS sensor was not calibrated right if it would give a low voltage reading on the o2 sensor?
beaujo700 is offline   Reply With Quote
Old 04-07-2008, 12:22 PM   #48
Senior Member
Certified GM nut
 
Join Date: Feb 2004
Location: CT
Posts: 2,099
Thanks: 0
Thanked 1 Time in 1 Post
SSEBONNE4EVA is on a distinguished road
Default TPS

Anything is possible at this point. You can put a voltmeter on it and post for us the readings with the key on, engine off. Idle position of the signal wire and WOT. also check for smooth range in between.
SSEBONNE4EVA is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
help..O2 sensor, lean bank one, strange things lobi Buick 8 02-24-2011 02:04 AM
need some help with code 41 please have tried almost everything i can think of!! derek62990 Performance, Brainstorming & Tuning 5 10-06-2009 02:28 AM
02 sensor lean/rich transitions Custom88 Bonneville GXP/ Northstar Powered Cars 12 01-27-2007 01:32 PM
DTC P0171 / Fuel Trim Lean... SSEi95 1992-1999 10 10-04-2005 08:40 AM
Heat related lean condition... UPDATE J Wikoff 1992-1999 19 06-16-2004 04:30 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 01:35 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.