96 Bonne rough idle, No codes - Page 2 - 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 01-08-2011, 06:11 PM   #11
Retired Senior Admin

Expert Gearhead
 
Danthurs's Avatar
 
Join Date: May 2006
Location: Sheboygan Wisconsin
Posts: 29,661
Thanks: 0
Thanked 16 Times in 13 Posts
Danthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to all
Default

Most that do live data are a bit pricy. But if you happen to have a android phone, there'* a app called torque that works real nice. I have a thread here about it, I'll see if I can find it.
Danthurs is offline   Reply With Quote
Old 01-08-2011, 06:13 PM   #12
Retired Senior Admin

Expert Gearhead
 
Danthurs's Avatar
 
Join Date: May 2006
Location: Sheboygan Wisconsin
Posts: 29,661
Thanks: 0
Thanked 16 Times in 13 Posts
Danthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to all
Default

Danthurs is offline   Reply With Quote
Old 01-08-2011, 07:20 PM   #13
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Oct 2009
Posts: 37
Thanks: 0
Thanked 0 Times in 0 Posts
burns375 is on a distinguished road
Default

No smart phone here.

I found this on amazon with free shipping to use with . I just hope the free software will allow me to diagnose the 02 and other stuff.

ElmScan
burns375 is offline   Reply With Quote
Old 01-08-2011, 07:33 PM   #14
Retired Senior Admin

Expert Gearhead
 
Danthurs's Avatar
 
Join Date: May 2006
Location: Sheboygan Wisconsin
Posts: 29,661
Thanks: 0
Thanked 16 Times in 13 Posts
Danthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to all
Default

Might work, but looks like it will be a bit slow. Also looks like there is a enhanced upgrade, might be worth looking in to that.
Danthurs is offline   Reply With Quote
Old 01-08-2011, 08:50 PM   #15
Senior Member
True Car Nut
 
jwfirebird's Avatar
 
Join Date: Dec 2009
Location: western,ny state
Posts: 9,616
Thanked 563 Times in 481 Posts
jwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond repute
Default

a couple free things worth checking out, clean the carbon off the idle air control valve and you could have oxidation on the coil terminals and wire ends and plugs if you didnt use dielectric grease when you replaced them.
jwfirebird is offline   Reply With Quote
Old 01-08-2011, 10:38 PM   #16
Senior Member
Certified GM nut
 
SignOfZeta's Avatar
 
Join Date: Mar 2005
Location: New Milford, CT
Posts: 2,284
Thanked 16 Times in 13 Posts
SignOfZeta has a spectacular aura aboutSignOfZeta has a spectacular aura about
Default

The ElmScan tools are slow and crappy, but with the right computer software they will read live data.

I use the included ScanTool.net software, which is the worst piece of so-and-so I've ever seen. But it does it job when it doesn't crash. Look into buying something called DashCommand if you go this route.
SignOfZeta is offline   Reply With Quote
Old 01-23-2011, 12:46 PM   #17
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Oct 2009
Posts: 37
Thanks: 0
Thanked 0 Times in 0 Posts
burns375 is on a distinguished road
Default

Thank guys. So i bought OBDlink SX from scantool, using free OBDwiz software which isnt that great. The fastest sample rate I can use is .25sec which translates to about 30 PID/sec...what ever that means. The 02'* are coming back good. The diagnostic tests says they are good. The realtime data shows a waveform that resembles a sinwave.... its not probably not perfect due to slow sample rate. What other kinda of data should I try to read????

The coils did get di-electric grease. Ill check the IAC and clean
burns375 is offline   Reply With Quote
Old 01-23-2011, 03:12 PM   #18
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Oct 2009
Posts: 37
Thanks: 0
Thanked 0 Times in 0 Posts
burns375 is on a distinguished road
Default

Danthurs here is 02 plot.Not sure what im looking at.
The x axis is seconds, y Volts, sample rate is about 70ms (14Hz). The data was recording while driving about 40-50mph thru town.

Name:  O2Sensors.jpg
Views: 0
Size:  79.2 KB
burns375 is offline   Reply With Quote
Old 01-23-2011, 03:18 PM   #19
Retired Senior Admin

Expert Gearhead
 
Danthurs's Avatar
 
Join Date: May 2006
Location: Sheboygan Wisconsin
Posts: 29,661
Thanks: 0
Thanked 16 Times in 13 Posts
Danthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to all
Default

Hmm, O21 is the blue line? Seems to be very high for a long time, that should not be the case if your crusing. It should cycle between high and low like the red line.
Danthurs is offline   Reply With Quote
Old 01-23-2011, 05:33 PM   #20
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Oct 2009
Posts: 37
Thanks: 0
Thanked 0 Times in 0 Posts
burns375 is on a distinguished road
Default

Thanks Danthurs. I have have been at a stop....I'll I make another plot with rpm data.

So before replacing the 02, how can I confirm the 02 is bad....not another problem like ECM, ignition, fuel....or is this enough information to tell you the 02 is bad.

Im assuming sensor 1 (0x14) is front and sensor 2 (0x15) is back.
burns375 is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Four Codes, rough idle, hard starting st041986 1992-1999 17 04-11-2010 01:06 PM
P0300 & P1406 Codes and Rough Idle - Fixed Rob96Olds88LS 1992-1999 1 03-23-2007 08:17 AM
Falling back into OL-1/Misfiring/Rough Idle No CODES Daron97SSE 1992-1999 7 04-13-2005 07:59 PM
Runs rough at low idle or go slow - no bad codes showing! muddtank 1987-1991 17 08-25-2003 06:42 PM
'00SSEi:rough idle,high idle...Please Help.... GTP2SSEi General GM Chat 2 07-29-2003 01:46 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 10:37 AM.


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.