O2 Sensor Did It - 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 09-11-2005, 09:54 PM   #1
Senior Member
True Car Nut
Thread Starter
 
Join Date: Jan 2004
Location: Lakeville, MN
Posts: 4,328
Thanks: 0
Thanked 1 Time in 1 Post
fantastic88 is on a distinguished road
Default O2 Sensor Did It

After replacing the o2 sensor I have gone from 12mpg city/ 15 highway to 19mpg city/ 29 highway. The old O2 didn't look so bad but it smelled like oil. I think before I replaced my PCV the oil burning may have damaged it, huh?
fantastic88 is offline   Reply With Quote
Old 09-11-2005, 09:58 PM   #2
Senior Member
True Car Nut
 
rjolly87's Avatar
 
Join Date: Jun 2003
Location: Las Cruces, NM
Posts: 6,857
Thanked 298 Times in 246 Posts
rjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant future
Default Re: O2 Sensor Did It

Quote:
Originally Posted by fantastic88
After replacing the o2 sensor I have gone from 12mpg city/ 15 highway to 19mpg city/ 29 highway. The old O2 didn't look so bad but it smelled like oil. I think before I replaced my PCV the oil burning may have damaged it, huh?
wow, how old was the old one?
rjolly87 is offline   Reply With Quote
Old 09-11-2005, 10:00 PM   #3
Senior Member
True Car Nut
Thread Starter
 
Join Date: Jan 2004
Location: Lakeville, MN
Posts: 4,328
Thanks: 0
Thanked 1 Time in 1 Post
fantastic88 is on a distinguished road
Default

It was original.
fantastic88 is offline   Reply With Quote
Old 09-11-2005, 10:14 PM   #4
Senior Member
Posts like a Camaro
 
Join Date: Sep 2003
Location: Bad Axe,MI.
Posts: 1,025
Thanks: 0
Thanked 0 Times in 0 Posts
daman is on a distinguished road
Default

WOW , after 115k, i'd say so.
daman is offline   Reply With Quote
Old 09-12-2005, 01:29 AM   #5
Senior Member
True Car Nut
 
Join Date: Dec 2003
Location: Corn Fields, IN
Posts: 2,766
Thanks: 0
Thanked 0 Times in 0 Posts
John Deere Boy is on a distinguished road
Default

Quote:
Originally Posted by daman
WOW , after 115k, i'd say so.
I'm at 137K on the original sensor and still getting 25 mixed city/highway
John Deere Boy is offline   Reply With Quote
Old 09-12-2005, 05:58 AM   #6
Senior Member
True Car Nut
 
Join Date: Jan 2005
Location: Montevideo, MN MWBF '05, '06, '07 WCBF '06 '07 survivor
Posts: 3,882
Thanks: 0
Thanked 0 Times in 0 Posts
sonoma_zr2 is on a distinguished road
Default

I'm at 218k w/ original

Oh ya, to stay on topic........Congratulations on the mileage bump.
sonoma_zr2 is offline   Reply With Quote
Old 09-12-2005, 08:41 AM   #7
Senior Member
Posts like a Camaro
 
Join Date: Sep 2003
Location: Bad Axe,MI.
Posts: 1,025
Thanks: 0
Thanked 0 Times in 0 Posts
daman is on a distinguished road
Default

Quote:
Originally Posted by sonoma_zr2
I'm at 218k w/ original
You may want to consider it.
daman is offline   Reply With Quote
Old 09-12-2005, 09:17 AM   #8
DINOSAURUS BOOSTUS

Expert Gearhead
 
BillBoost37's Avatar
 
Join Date: Mar 2005
Location: Enfield, CT
Posts: 41,391
Thanks: 0
Thanked 0 Times in 0 Posts
BillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of light
Default

As with any electronic or mechanical piece, some wear better than others. No one can really say what is working good/bad w/o putting an O2 onto a scan tool and watching it flip flop. Even then..what'* really good and whats bad?

I guess you'd need to record the data and over analyse it to a point that putting in a new one if you felt the need would be best.
BillBoost37 is offline   Reply With Quote
Old 09-12-2005, 09:45 AM   #9
Senior Member
True Car Nut
 
Join Date: Feb 2003
Posts: 3,684
Thanks: 0
Thanked 0 Times in 0 Posts
smellbird is on a distinguished road
Default

Quote:
Originally Posted by daman
Quote:
Originally Posted by sonoma_zr2
I'm at 218k w/ original
You may want to consider it.
If it'* not broke, it doesnt need to be fixed. Travis is getting over 30mpg consistently. Who knows, replacing it might make his mileage go down a little. Factory Freak.
smellbird is offline   Reply With Quote
Old 09-12-2005, 10:44 AM   #10
Senior Member
Posts like a Camaro
 
Join Date: Sep 2003
Location: Bad Axe,MI.
Posts: 1,025
Thanks: 0
Thanked 0 Times in 0 Posts
daman is on a distinguished road
Default

I,m just going by my own experience, i just changed mine yesterday(143k, and i noticed on my scan tool(cp9145) it was showing inconsistencies(staying on rich longer than lean instead of cycleing evenly between the two), a sighn of a bad O2 senser. so if mine at 143k is bad i'd bet one at 200k is't much better.
daman is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
did new crank sensor change timing jaci Pontiac Bonneville 1 01-10-2015 09:31 AM
HELP! cam sensor error... and its NOT the cam sensor Sprig Everything Electrical & Electronic 3 06-17-2006 11:13 AM
Oxygen sensor - where did I go wrong?!?! Saturn Simon 1987-1991 14 05-29-2006 11:48 AM
How did you hear about BC and why did you join? BLACK94SSEi Lounge 43 05-14-2006 01:00 AM
IAT sensor integrated in Mass Air Flow Sensor? cballweg Bonneville GXP/ Northstar Powered Cars 6 05-04-2006 03:37 AM


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 04:11 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.