0
Oxygen Sensors
Also called as the lambda sensor, an oxygen sensor measures the proportion of oxygen in liquid or gas. Scientists use this electronic device in measuring respiration or production of oxygen. Oxygen sensors are also used in automobiles.
3,729 Questions
How do you fix an oxygen sensor?
Unfortunately there is no fixing an O2 sensor. If the "check engine" light is on due to an O2 sensor, it can only be remedied by replacing the bad sensor.
How do you replace an oxygen sensor for a 2002 Saturn L200?
Where is bank 1 and bank 2on a 1998 mercury mountaineer mououtaineer?
Bank 1 is the passenger side of the engine in your Mercury Mountaineer ( V6 and V8 ) and bank 2
is the drivers side of the engine
Hisitation and check engine in 2000 f150?
Have Dealer or Mechanic Check The coil packs! Each Plug has one! Don't get them Wet on models '99-'03 ...ie. Washing your Engine Down! This task will short them out whether engine is running or not. Water stays trapped in small crevuses on this series of coil packs and when it is running and put it under a load ex. (going uphill) in overdrive, It drops its load and causes engine to misfire. Truck will jump like tranny going out. Will cause check engine light to come on. Staying on most of the time. $185.00 per pack installed at dealer. ouch! This is a design flaw. The new ones that it is replaced with haven't had this problem. I've had three done And I still like my '02 Supercrew 4x4 5.4 liter. also could be fuel pump or throttle body clogging or bad fuel. Best to get codes read. You can get it done for free at "AutoZone" Auto parts.
Where is the Oxygen Sensor Signal Wire located in a 1996 Acura Integra?
The oxygen sensor is connected by a wiring harness. The wiring harness contains the signal wire. The signal wire goes to the system computer.
Hi guys ( and gals)... had the same problem on a UK registered 2001 626 GSi Automatic ( not Ford Built ) at about 100k miles and took it to my main dealer with a virtually full tank of petrol ( see below) for a computer code check as the problem was intermittent..they diagnosed and fitted a new lambda sensor ( at great cost ) which seemed to cure the problem until fuel ran low...got the warning light back!.
Noticed that when I had refueled, it was fine but when fuel was low, the light came on and the car started missing a bit..It felt almost like fuel starvation like on old motorbikes that I owned years ago but filter was clean / almost new. Will add that car was serviced "almost religiously"!!
Went to a backstreet garage nearby who diagnosed at once "fuel pump failure"...the weight of the fuel was forcing it through the system and as fuel was used, less was getting to engine, getting leaner etc, etc! Fitted ( cheaply ) pattern fuel pump, problem solved, gave the car away in 2007 with 250k miles on clock when I bought my latest Mazda 6 and it is still going strong locally!
My advice is, check fuel pump before lambda O2 sensor...it's easy now I know, pull the pipe off the connection block and see the flow, if you get soaked in petrol, the pump is ok ( and don't go near a naked flame!), if not, likely to be pump
Following answers are nothing to do with me but where I have probably tapped into the wrong section and posted incorrectly... please observe and respect their solutions..who knows, they are probably right and little me, in Cornwall, UK is wrong! Have the proverbial, " Nice Day "
There's no way to know until you hook up an OBD-II code scanner to read the codes. There are several scanners available on the market, the cheapest is around $122 but any decent garage should have one these days. The Mazda uses ISO 9141-2 protocol.
There's a nice list of OBD-II codes here http:/autorepair.about.com/cs/troubleshooting/l/bl_obd_main.htm
i had the same problem.. i found a wire pulled out of the pin at the connector, not to far from the o2 sencer..
error code 0171. system to lean. today just changed fuel filter, Mazda 626 97. not sure if the error code will come back or not. will know tomorrow,
Funny, I dealt with this today, mine came on and i hooked it up to the ODBII and it read "system to lean" im assuming the fuel filter needs to be changed.
I have a 1999 Mazda 626 with a 4 cylinder that needed the intake manifold gasket replaced. I was told it was a common problem for the gasket to leak. The leak at the gasket will cause the car to run lean because of increased air. My car also had an idle problem.
I had the same problem with my 1997 626 it come to find out i had an exhust leak and i also had a trans problem. The exhaust leak made my car run real lean.But ya your best bet is to hook it up to the ODBII to get the code or codes and go from there.
If the CE light comes on, drive to your nearest Auto Zone store and they will check it and give you the codes for free.
">I had a code coming back "system too lean" also a code that the O2 sensor had a problem and "catalytic converter not efficient. The engine acted like it was running out of gas and the tranny even gave me trouble and had a code on that too. Another code said I may have a dirty MAFS. They make a MAFS cleaner to spay on and clean. All the codes went away and the problems were fixed for $7 !!! Makes sense if the engine is not getting the right air combination to start with all the other sensors will pick up a bad reading. By the way...an auto repair shop charged me $100 to diagnose this and give me the codes and concluded I needed a new cat converter at $1300 , a rebuilt tranny at $2,800 and clean the MAFS at $60
Autozone gave me the same codes for free.
When should you replace your oxygen sensor on a GMC Envoy?
It is only necessary when the computer recognizes a problem with it. You will have a check engine code. Mine triggered a code " low output " for about 6 months before I changed it, it was still operating ok and not affecting engine performance but the minor fault was picked up by the computer.
Where is the oxygen sensor located on 1998 jeep wrangler?
In a 1998 Jeep Wrangler, the oxygen sensor is located in the exhaust pipe. It can be found just below the junction of the exhaust manifold and the exhaust pipe.
Where are the 02 sensors located in a 2006 Chrysler Town and Country?
The oxygen sensors are screwed into the exhaust on the rear of the engine. The upstream is before the catalytic converter, the downstream is after.
Where is the O2 sensor located on a 1988 Chevy Silverado 1500?
there should be a couple of them screwed into the exhaust system.
What are symptoms of bad O2 sensor in 1998 expedition?
There are many symptoms of a bad O2 sensor. Some are poor fuel efficiency, flashing check engine light, the failure to pass a smog test, and rough idling.
What are exhaust pipes made of?
Automobile exhaust pipes can be made from several different materials, it depends on the vehicle. Standard auto exhaust pipes are made of a light weight steel tubing, thus they eventually "rust out". Aftermarket pipes can be manufactured from Stainless Steel for longevity, or a steel tubing with a ceramic coating used to reduce heat being radiated from the piping into the engine bay or compartment.
Where is bank 2 sensor located on 4.6 mustang?
Bank 2 is the drivers side of your Mustang 4.6 liter
Sensor 1 is between the engine and the catalytic converter ( upstream )
Sensor 2 is in the exhaust after the catalytic converter ( downstream )
Where is the 02 sensor on a 2005 dodge stratus?
In the exhaust pipe, near the manifold. The 4 cylinder has 2, the V6 has 4.
Where is bank 1 and bank 2 for 2002 Chevy Tahoe?
Standing in the front of the engine and looking at it.
The right side of engine-or head will be bank 1
The other head on the left will be bank 2.
What does a tps wiring harness do?
It connects the TPS (Throttle Position Sensor) to the ECM (Engine Control Module) so the ECM can receive information transmitted by the TPS.
Where is the oxygen sensor 2 bank 2 on a 2002 Mercury Mountaineer?
Bank 2 is the drivers side of the engine in a 2002 Mercury Mountaineer
Sensor 2 is after the catalytic converter ( downstream )
This refers to the second oxygen sensor on Bank 1. Bank 1 is the same side of the engine that cylinder 1 is on, the very front cylinder on the drivers side. It could need to be replaced, or there could be a short to voltage on the O2 signal circuit, or it could also be that the connector has been corroded, and needs to just be cleaned. I believe this code is the same for all vehicles, not just Toyotas.
How hard is it to change a rear oxygen sensor on a 2002 Subaru Forester?
That's a tough one to answer. Just changed the rear oxy sensor on my '00 and yours should be about the same. My local auto parts store lends a set of sockets for just this purpose and I do recommend them. Takes some patience and trying different angles. Mine took a little more force than I could exert with a 3/8" ratchet but once it broke loose it unscrewed the rest of the way with ease. It is an awkward job but not hard. Keep the end of the new one clean, including no fingerprints. Does that answer your question? ...Ken
Where are oxygen sensors on a 1992 Chevy 1-ton pickup truck 2-wd 350 engine?
To be honest, I am not sure, BUT, my 1990 Dodge has one oxygen sensor and it is located in the exhaust pipe on the right side (passenger side) of the engine not too far from the manifold. The sensor screws into a hole in the exhaust pipe. (Helpful hint: I squirted the thread part of the sensor with Liquid Wrench every day for a week to loosen up the rust).
Where is the camshaft position sensor on a 1997 Infiniti I30?
Where is the oxygen sensor located on a 1995 dodge 1500 with a 5.9 liter and single exhaust?
it is located just behind where the exhaust pipes "y" together
Where is the oxygen sensor on a 1997 Ford Ranger?
The heated oxygen sensor is located on the exhaust forward of the catalytic converter and the catalytic converter sensor is located aft. Don't mix them up.
CAUTION: Disconnect both battery cables and allow metal to cool. Disconnecting both battery cables will reset computer settings.
Lift vehicle and support safely. A drive up lift or pit that allows standing is best.
The heated oxygen sensor connector is located above the transmission, best reached with the right hand, up the right-side, using a 3/16" straight-slot screwdriver to release the lock.
Then using special tool or crescent wrench, remove the sensor.
Apply high-temperature anti-seize to new sensor, install hand-tight, and a gentle, but firm wrench tight, will hold it.
Count tools.
Safely lower vehicle.
Reconnect battery, (+) positive first, then (-) negative.
Start and hold key to start position for 30 seconds.
Fill gas tank and drive 200 miles without shutting the engine off.
Where is the oxygen sensor on a 2002 Chevrolet Malibu?
All oxygen sensors are located in the exhaust system either before or after the catalytic converter.
