O2 sensor location???
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Freshman User
Joined: Feb 2005
Posts: 31
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From: Calgary AB
O2 sensor location???
hello everyone where is the O2 sensor located could I fix this at home. I have a lagging and no power problem to. Any way to check it I am sure I need a new one though as I have own my 92 3l for 4 years and never check it or replaced it.
thanks for your help in advance
dan fletcher
now in Calgary Alberta Canada
thanks for your help in advance
dan fletcher
now in Calgary Alberta Canada
Elder User
Joined: Jan 2004
Posts: 558
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From: North Alabama
I'd suggest getting a code reader (as low as $25 US) and seeing what codes show up before starting to change parts indiscriminately. A lot of cars are probably eventually repaired like that, but it's usually better and less expensive to diagnose the real issue and fix it right the first time. It won't do any good to change the oxygen sensor if the real problem is low pressure coming out of the fuel pump.
Post Fiend
Joined: Apr 2005
Posts: 5,720
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From: Washington state
Originally Posted by senseidanf
i get a smell of gas once in awhile as well/
O2 sensors may still be good.
What if any OBD (On Board Diagnostics) codes from PCM (Powertrain Control Module)?
How is the engine and van running; acceleration, starting, color of exhaust, etc?
What year and engine?
Freshman User
Joined: Apr 2005
Posts: 37
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Just my two cents..
I occasionally get a smell of raw fuel during and immiediately after WOT (Wide Open Throttle) acceleration, if this is the smell of fuel being refferred to.
As far as I can tell, the engine and associated systems (minus the transmission, see my post on the FL to CA trip..) are in great condition. No 'Check Engine' light at any time other than the self-test, no visible exhaust, or other odd smells, and the van got 25 miles to the gallon on the trip here. That was loaded down with cargo, non-working A/C, and the driver and passenger windows rolled down at a constant speed of 55mph.
'93 XL - 179,961 miles
I occasionally get a smell of raw fuel during and immiediately after WOT (Wide Open Throttle) acceleration, if this is the smell of fuel being refferred to.
As far as I can tell, the engine and associated systems (minus the transmission, see my post on the FL to CA trip..) are in great condition. No 'Check Engine' light at any time other than the self-test, no visible exhaust, or other odd smells, and the van got 25 miles to the gallon on the trip here. That was loaded down with cargo, non-working A/C, and the driver and passenger windows rolled down at a constant speed of 55mph.
'93 XL - 179,961 miles
Elder User
Joined: Jan 2004
Posts: 558
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From: North Alabama
Check the lines to/from the charcoal cannister and the purge valve. Both items have a 90-degree bend in lines, and that often deteriorates and cracks with age, causing loss of vacuum and the related effects. The purge valve, best I recall, is on top of the right bank, near the fuel pressure regulator, well hidden and difficult to get to.
Posting Guru
Joined: Jul 2004
Posts: 2,416
Likes: 1
From: Mitchell, SD
Yes, you can easily replace your O2 sensor at home. (I would replace every 75k mi, cheaper than replacing the cats.)
At WOT you are running rich, so that would explain the smell of gas, if it is overwhelming, then as Dave said, check the canister.
Lagging and no power could be multiple things. Instead of buying a code reader you can use a peice of wire or a paper clip to pull your own codes, bring them here and we can translate them for you.
(This is for the Taurus, but it will work on your model.)
http://www.shotimes.com/php-bin/modules.php?op=modload&name=News&file=article&mode =thread&order=0&thold=0&sid=83
You could have a code, but it is not an important one so it will not throw a CE light.
(where is it?) If you crawl under the passenger door and look up, you will see it pluged into the exhaust pipe.
At WOT you are running rich, so that would explain the smell of gas, if it is overwhelming, then as Dave said, check the canister.
Lagging and no power could be multiple things. Instead of buying a code reader you can use a peice of wire or a paper clip to pull your own codes, bring them here and we can translate them for you.
(This is for the Taurus, but it will work on your model.)
http://www.shotimes.com/php-bin/modules.php?op=modload&name=News&file=article&mode =thread&order=0&thold=0&sid=83
You could have a code, but it is not an important one so it will not throw a CE light.
(where is it?) If you crawl under the passenger door and look up, you will see it pluged into the exhaust pipe.
Last edited by 93nighthawk; Jul 5, 2005 at 12:03 AM.
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Former ******
Joined: Nov 2004
Posts: 4,901
Likes: 2
From: Salt Lake City, Utah
Why are you people so fussy about replaceing o2 sensors. THEY ARE MAINTENANCE ITEMS. Tey require periodice replacement, and should be replaced prior to failure. If you are fussy about replaceing them on a regular basis (every 50 - 100 k miles depending on vehicle and driveing conditions), then perhaps you should look at what is costs to have your cat replaced. Trust me, a sesnor worth between 60-100 dollars and can be easily installed yourself is much less expensive than a new cat which is best left to a muffler shop. Nighthawk knows what he is talking about. As to the location of the sensor, it is in front of the front cat, right behind where the y pipe comes together. Depending on year, its exact location may vary, and the OBD-II setups have 2 sensors.
Last edited by khantyranitar; Jul 5, 2005 at 01:13 AM.
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