User Tag List

Reply
 
Thread Tools Rate Thread Display Modes
Old 08-15-2006, 09:21 PM #1
Twams Twams is offline
Junior Member
 
Join Date: Aug 2006
Posts: 23
Twams is an unknown quantity at this point
Twams Twams is offline
Junior Member
 
Join Date: Aug 2006
Posts: 23
Twams is an unknown quantity at this point
oxygen sensor Problem

The check engine came on and Autozone said it was the front oxygen sensor. I replaced that and reset the check engine by unhooking the battery. I ran very bad at first then got better. Later the check engine came on. I reset it again.. it happened again. took it back to the Zone they said it was the same sensor. Replaced it again and the exact same thing happened again.
At a loss. Any help would be appreciated. 99 4runner
Twams is offline   Reply With QuoteReply With Quote
Old 08-15-2006, 10:23 PM #2
mikes4runner's Avatar
mikes4runner mikes4runner is offline
Senior Member
 
Join Date: Jan 2004
Location: Hanover,PA
Age: 51
Posts: 1,185
mikes4runner is on a distinguished road
mikes4runner mikes4runner is offline
Senior Member
mikes4runner's Avatar
 
Join Date: Jan 2004
Location: Hanover,PA
Age: 51
Posts: 1,185
mikes4runner is on a distinguished road
What was the code? it could be any # of things not just O2 sensor.

What engine/miles.



Mike
__________________
01 MR2,96 Vette,93 4runner
mikes4runner is offline   Reply With QuoteReply With Quote
Old 08-16-2006, 12:22 PM #3
greasefingers's Avatar
greasefingers greasefingers is offline
Senior Member
 
Join Date: Aug 2004
Location: Northern VA
Posts: 1,942
greasefingers is on a distinguished road
greasefingers greasefingers is offline
Senior Member
greasefingers's Avatar
 
Join Date: Aug 2004
Location: Northern VA
Posts: 1,942
greasefingers is on a distinguished road
Remove the MAF and spray it with electrical cleaner. And yes ... always proved adequate vehicle info
__________________
2003 4x4 Sport 4runner V8 with 267k miles and counting
2015 Lexus RC350 F-sport
greasefingers is offline   Reply With QuoteReply With Quote
Old 08-16-2006, 08:41 PM #4
Twams Twams is offline
Junior Member
 
Join Date: Aug 2006
Posts: 23
Twams is an unknown quantity at this point
Twams Twams is offline
Junior Member
 
Join Date: Aug 2006
Posts: 23
Twams is an unknown quantity at this point
Sorry about the Code. My wife went to A-zone today and they checked it and said it was not the O2 and said that the #1 injector was lean. She said the Code was PO 701 or something close with 7,0,1 in it. The sold us some Sea Foam to put in the tank. Is this good Info??
Twams is offline   Reply With QuoteReply With Quote
Old 08-17-2006, 09:51 AM #5
greasefingers's Avatar
greasefingers greasefingers is offline
Senior Member
 
Join Date: Aug 2004
Location: Northern VA
Posts: 1,942
greasefingers is on a distinguished road
greasefingers greasefingers is offline
Senior Member
greasefingers's Avatar
 
Join Date: Aug 2004
Location: Northern VA
Posts: 1,942
greasefingers is on a distinguished road
The exact code number is important however, a PO171 is difficult to diagnose as it can be either a drifting O2 sensor or a dirty MAF. The MAF and O2 sensors work together. It is best to remove the MAF and clean it by spraying it with electrical cleaner. If the code goes away then you are golden. If it does not then you most likely need a new O2 sensor.
__________________
2003 4x4 Sport 4runner V8 with 267k miles and counting
2015 Lexus RC350 F-sport
greasefingers is offline   Reply With QuoteReply With Quote
Old 08-17-2006, 08:34 PM #6
Twams Twams is offline
Junior Member
 
Join Date: Aug 2006
Posts: 23
Twams is an unknown quantity at this point
Twams Twams is offline
Junior Member
 
Join Date: Aug 2006
Posts: 23
Twams is an unknown quantity at this point
What do i need spray. I am guessing it is right behind the air filter. Do i need to take that section off?
Twams is offline   Reply With QuoteReply With Quote
Old 08-17-2006, 08:48 PM #7
greasefingers's Avatar
greasefingers greasefingers is offline
Senior Member
 
Join Date: Aug 2004
Location: Northern VA
Posts: 1,942
greasefingers is on a distinguished road
greasefingers greasefingers is offline
Senior Member
greasefingers's Avatar
 
Join Date: Aug 2004
Location: Northern VA
Posts: 1,942
greasefingers is on a distinguished road
go here:
http://www.4x4wire.com/toyota/mainte...tenancep5.html
__________________
2003 4x4 Sport 4runner V8 with 267k miles and counting
2015 Lexus RC350 F-sport
greasefingers is offline   Reply With QuoteReply With Quote
Old 08-17-2006, 10:59 PM #8
kustomkhaos kustomkhaos is offline
Junior Member
 
Join Date: Aug 2006
Location: Chesapeake VA.
Age: 45
Posts: 9
kustomkhaos is an unknown quantity at this point
kustomkhaos kustomkhaos is offline
Junior Member
 
Join Date: Aug 2006
Location: Chesapeake VA.
Age: 45
Posts: 9
kustomkhaos is an unknown quantity at this point
Clean the maf sensor for starters. A P0171 is a system too lean code. Cleaning the maf 9 times out of 10 fixes this. You may want to check the sensor you replaced and make sure you got the right one. Go to the dealer and ask the parts department to give you the part # for the air fuel sensor 1. This is the sensor that advance is calling a 02 sensor. Check the #'s and confirm it is the same. The wrong sensor will throw a check engine light. We see this all the time at the dealership when people go to autozone or advance auto for a diagnosis.
kustomkhaos is offline   Reply With QuoteReply With Quote
Old 08-22-2006, 08:48 PM #9
Twams Twams is offline
Junior Member
 
Join Date: Aug 2006
Posts: 23
Twams is an unknown quantity at this point
Twams Twams is offline
Junior Member
 
Join Date: Aug 2006
Posts: 23
Twams is an unknown quantity at this point
Cleaned MAF -problem solved. THANKS ALL!!!
Twams is offline   Reply With QuoteReply With Quote
Old 11-05-2016, 12:55 PM #10
debo123456 debo123456 is offline
Junior Member
 
Join Date: Nov 2016
Location: NEW YORK
Posts: 1
debo123456 is on a distinguished road
debo123456 debo123456 is offline
Junior Member
 
Join Date: Nov 2016
Location: NEW YORK
Posts: 1
debo123456 is on a distinguished road
2003 Toyota 4runner, o2 sensor engine light

post - 9/29/2016
2003 Toyota 4 runner, limited. purchased new, engine warning light, VSC track off light is on stays on, even when you disconnect battery or, replace fuel cap, read on!
Engine warning light VSC track off light is on. Serviced on 9/23/2013, 103,000 miles - $422.81 replaced 1 sensor bank 1, 1 hr labor. No codes provided possible replacement of Catalytic convertor in the future is noted? 3000 miles outside of emission warranty of 100,000 miles.
Repeat service , again – requested service for engine warning light VSC track off light is on. Serviced on 6/19/14, 104563 miles $366.72, replaced bank 2 sensor 1.50 hr labor. Dealer states they only replaced one sensor prior. No codes provided
Again - Requested service for engine warning light VSC track off light is on. Serviced on 8/15/2015, 117911 miles, dealer requests to replaced both bank1 & bank 2 sensors? I called Toyota. Toyota notifies dealer of recall / parts revision, to replace prior factory installed sensors, to follow Bulletin number - 1gr-fv-v6, dated 2/11/2005. Dealer never realized they had a revision on factory installed O2 sensors but does comply ; dealer refuses to honor their mistake of not following factory directive to replace sensors with new part numbers, charges me additional $235.71 (labor only). No codes provided. Dealer refuses to work with me.
Again - Requested service for engine warning light VSC track off light is on. Sept. 22, 2016, 124549 miles. This time dealer states oil is fowling sensor near fire wall / rear O2 sensor causing error reading (causing engine / VSC lights). Dealer reports code reading - p0136, case number created. This is my 4th time with this problem over a period of 3 years.
I called Toyota factory again explaining that Dealer is having problems servicing my car; dealer’s contention is that it’s a different problem. Dealer has my 4 runner for 2 days now, never calls me back. When I did reach dealer they explained that Toyota factory has been called with engineer’s conclusion which is: Transmission oils are fowling o2 sensor; oil from transmission and engine are traveling up “cabling” to CPU module causing sensor warning and error reading at CPU. At this time dealer explains that they have spoken to factory and agrees to follow factory advice, quotes me cost to repair - $2600.00, computer module is additional. Asked for a rental car and signs me out with rental. 35.00 per day.
Replacement Parts would include - transmission & engine harnesses, transmission fluid , gasket sealant, 12 hours of labor, total paid to dealer $2436.73. Dealer credits me my 4 day rental car. They went by the book!

I asked dealer if I could see old parts and dealer complied. Over looking old parts I witnessed oil infusion on all Molex plugs and harnesses… oil noted inside male plugs that could cause arcing, failure or even fire. I was shown removed transmission harness and plug that runs inside transmission body. Took photos of old cabling with oils showing up inside plugs etc. Had to be at least 10-15 feet of cabling / parts.
On Oct. 16, 2016 after, while my check was not even cashed / still warm, only booked 60 miles since the repair, errors codes appear again, engine, VSC lights appeared once again, had to bring it back to dealer. Waited 2.5 days, dealer replaced rear engine o2 sensor, stating that it could have been damaged by all the work that was done!
Conclusion, 11/5/2015, it appears to be working, I have my doubts, my fingers crossed.
Note: that it is fixedo2 sensor are federally required pollution devices. My problems started at 103,000 miles just outside the 100,000 emission warranty. Factory refuses to recognize this point or make good!

Purchased vehicle new, never had a major problem. My experience with dealer, I feel that I have been wronged here. Dealer and manufacture do not understand that they lost my respect when they did not follow Bulletin 1gr-fv-v6, dated 2/11/2005 or work with me just outside the factory warranty on originally serviced date 9/23/2013 (car being only10 years old), 103,000 miles and dealer did not honor parts and labor warranties. It’s going to be a long time before I forget this experience. Manufacture and dealer should consider, If fluids are traveling up and down cabling into electrical systems, If my assumptions are correct, knowing transmission fluid can act as a combustible “at the right temperature” it’s just a matter of time for fatality or disaster to happen. You might look at this “as not your problem” but as a retired mechanical engineer I see this as a major problem which should be addressed. The factory customer services should be held accountable for doing their jobs of reporting these concerns promptly, think out of the box with addressing complaints. Copy of this letter has been sent to better business and state general’s office for consideration and filing.
Do it yourself? - How to Fix a Bad O2 Sensor - Toyota Parts Blog
debo123456 is offline   Reply With QuoteReply With Quote
Old 09-18-2021, 09:02 PM #11
plutonic's Avatar
plutonic plutonic is offline
Junior Member
 
Join Date: Oct 2018
Location: Atlanta, GA USA
Posts: 27
plutonic is on a distinguished road
plutonic plutonic is offline
Junior Member
plutonic's Avatar
 
Join Date: Oct 2018
Location: Atlanta, GA USA
Posts: 27
plutonic is on a distinguished road
OK, so this is an old subject but my search-fu has failed me and I have questions.

Couple of weeks ago I got the check engine light with the traction control lights on and a P0031 code, bank 1 sensor 1 failure.
Changed the sensor, changed the gas cap, car worked fine for about an hour or so, then got the same s*it again.

What could be the problem? Catalytic converter went bad? Manifold leak? What do you smart people say, what else could be the problem?

Thanks!
plutonic is offline   Reply With QuoteReply With Quote
Old 09-18-2021, 09:46 PM #12
spartacus's Avatar
spartacus spartacus is online now
Senior Member
 
Join Date: Mar 2010
Location: denver
Posts: 2,247
spartacus is a splendid one to behold spartacus is a splendid one to behold spartacus is a splendid one to behold spartacus is a splendid one to behold spartacus is a splendid one to behold spartacus is a splendid one to behold spartacus is a splendid one to behold
spartacus spartacus is online now
Senior Member
spartacus's Avatar
 
Join Date: Mar 2010
Location: denver
Posts: 2,247
spartacus is a splendid one to behold spartacus is a splendid one to behold spartacus is a splendid one to behold spartacus is a splendid one to behold spartacus is a splendid one to behold spartacus is a splendid one to behold spartacus is a splendid one to behold
Quote:
Originally Posted by plutonic View Post
OK, so this is an old subject but my search-fu has failed me and I have questions.

Couple of weeks ago I got the check engine light with the traction control lights on and a P0031 code, bank 1 sensor 1 failure.
Changed the sensor, changed the gas cap, car worked fine for about an hour or so, then got the same s*it again.

What could be the problem? Catalytic converter went bad? Manifold leak? What do you smart people say, what else could be the problem?

Thanks!
p0031 is upstream o2 sensor a/f. Did you replace it with denso or orm. if you have access to obd scan then check the bank one sensor one values. It will cycle from 0.01v to 0.09v volts when heated up to operating temp rapidly.
What Gen 4runner?
spartacus is online now   Reply With QuoteReply With Quote
Old 09-19-2021, 11:43 AM #13
plutonic's Avatar
plutonic plutonic is offline
Junior Member
 
Join Date: Oct 2018
Location: Atlanta, GA USA
Posts: 27
plutonic is on a distinguished road
plutonic plutonic is offline
Junior Member
plutonic's Avatar
 
Join Date: Oct 2018
Location: Atlanta, GA USA
Posts: 27
plutonic is on a distinguished road
Quote:
Originally Posted by spartacus View Post
p0031 is upstream o2 sensor a/f. Did you replace it with denso or orm. if you have access to obd scan then check the bank one sensor one values. It will cycle from 0.01v to 0.09v volts when heated up to operating temp rapidly.
What Gen 4runner?
I replaced it with a Denso sensor, 4th Gen 2004 V8.
plutonic is offline   Reply With QuoteReply With Quote
Reply

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

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 On

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
pics of front oxygen sensors and tundra fitment? tdewitt34 4th Gen T4Rs 0 09-24-2010 07:09 PM
Oxygen sensor diagnosis & replacement Sidney Classic T4Rs 0 01-26-2008 08:07 PM
Oxygen Sensor rustyrazor Classic T4Rs 1 06-05-2007 10:11 AM
FS: Toyota OEM Oxygen Sensor (Used) marko3xl3 Classifieds - buy & sell (no commercial ads please) 1 12-04-2005 03:03 PM
Oxygen Sensor Location Mhopper Maintenance/Detailing 3 09-20-2003 11:37 AM

Powered by vBadvanced CMPS v3.2.2

All times are GMT -4. The time now is 04:43 PM.

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2021, vBulletin Solutions Inc.
Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2021 DragonByte Technologies Ltd.
Feedback Buttons provided by Advanced Post Thanks / Like (Lite) - vBulletin Mods & Addons Copyright © 2021 DragonByte Technologies Ltd.
User Alert System provided by Advanced User Tagging (Lite) - vBulletin Mods & Addons Copyright © 2021 DragonByte Technologies Ltd.
***This site is an unofficial Toyota site, and is not officially endorsed, supported, authorized by or affiliated with Toyota. All company, product, or service names references in this web site are used for identification purposes only and may be trademarks of their respective owners. The Toyota name, marks, designs and logos, as well as Toyota model names, are registered trademarks of Toyota Motor Corporation***Ad Management plugin by RedTyger
 
Copyright © 2020