03 Honda accord oxygen upstream sensor locaton?
A 2003 Honda Accord Oxygen sensor is located on the exhaust pipe. To find it jack the car up and safely position it on jack stands. Crawl under the vehicle and look at the downpipe of the exhaust, the sensor will have two wires protruding from it.
You could, but your engine will enter 'limp mode'. Simply unplugging it would do the trick. The O2 sensor is vital for a fuel injected car to determine proper mixture. Without it, the car defaults to a 'best guess' that is usually richer than needed. This will reduce your gas mileage considerably,… may make it lurch and stall, and could do other bad things like burn valves. Spring for the O2 sensor. Including buying the socket to fit it, it'll run you between $60 and $150 guessing. $80 is probably about right for the Honda. I think it's a three wire on the accord. Side note.. you can test an O2 sensor yourself pretty easily. If it's a heated type sensor, the one wire that's a diff color is usually the signal wire. The sensor actually produces a small voltage while in operation. Keep in mind it needs to warm up to be accurate.. about 600 degrees. Drive the car for 5 min before testing. With a DIGITAL dvm, test the voltage produced on the signal wire with respect to ground. In circuit it should bounce right around .45 volts. If your getting around 12 volts or 0 volts, you got the wrong wire. When the mixture is rich it will read higher, lean lower. When I say bounce, I mean that it will not stay at .45 volts, but swing wildly up and down around it, but stay close to .45 as the center. The engine is dynamically updating the mixture, causing it to lean out, then go rich alternately and the signal from the O2 sensor will reflect this balancing act. The voltage produce should always stay in the range of .1 volts to .9 volts. This applys to 1 wire, or 3 wire O2 sensors. The 3 wire versions have a heated coil of wire to get the sensor up to operating temp faster. 4 wire versions I assume have a separate ground for the signal. It may be possible to figure out what goes where by process of elimination. (find the 12 volt, find the 0 volt, the other two are likely the signal wires.) A Digital voltmeter is required to keep from blowing things up as their input impedence is high enough to not affect the signal. Enough for now. You can bypass it by simply unplugging it. However, your check engine light will always be on and you won't be able to pass an emmissions test. Also, if you unplug your oxygen sensor, the car will probably shift harder (if it has an automatic transmission) and it won't shift correctly when you try to accelerate at speeds over 30 MPH (it will downshift too many gears). You can buy OEM replacement oxygen sensors on the internet for around $80.00. I would recommend NKG or DENSO brands. (MORE)
If the sensor has never been changed it may need to be heated with a torch in order to loosen it up if it will not loosen right away with the socket. Don't use force until it is heated slightly which will contract the metal and make removal easier before stripping or breaking it necessitating drasti…c measures. On a 1994 Accord it is located on the exhaust system next to the catalytic converter. You unplug it and then loosen it with a socket wrench that has the slit on the side ( an O2 sensor removal tool). You screw the new one in and then plug it in. If the check engine light is on you need to take the car to a mechanic or to the auto parts store so it can be cleared. (MORE)
Answer . \nin the exhaust manifold right before the flex pipe. in the 3.0 it is located behind the engine.
u have to have a 02 sensor removal tool or u will just strip it (can get at auto zone for about $15 but if u have it its very ez just unclip the plug (sometimes can be hard ) unscrew it and replace if u have any questions u can get me at email@example.com
The upstream o/2 sensor is located in the exhaust system between the exhaust manifold and the catalytic converter. Some vehicles will have 2 upstream sensors (i.e. 1999 Chevy astro 4.3l engine has sensor for left exhaust manifold and another for right exhaust manifold). I am trying to find out for s…ure if you have to replace both when one goes bad. Bosch says both must be replaced!!!??? Oh yeah it(they)are easy enough to replace if you can see it (them). (MORE)
Answer . Under the hood directly across from the cooling fan on the forward side of the engine there is the exsaust manifold. This is where the sensor's home is located. On some models, the oxygen sensor is on the under side of the manifold. It may be under the car located on the catalytic conver…ter.\n. \nTo remove the sensor, the front bumper, grill, and radiator are removed for ease of access, as the sensor has often welded itself to the manifold. Often, very high heat (from an acetyline torch) must be applied to the manifold (off the vehicle, of course, to prevent a fire) to free the sensor. This heat will destroy the sensor, so be sure it is non-functional before you go to all this trouble and expense. (MORE)
Answer . \nUnderneath the car on the exhaust pipe. Where the 2 pipes join to one right where it turns into one pipe on top is the O2 sensor.\nhttp://www.autozone.com/servlet/UiBroker?ForwardPage=/az/cds/en_us/0900823d/80/0c/f8/ae/0900823d800cf8ae.jsp\nyou can see it here.
Answer . The oxygen sensors on all vehicles are uasually located before and after the catalitic converter to monitor your emisions !\nGood Luck !
Its located towards the front of the car. Close to the radiator. Think its on the left hand side of the engine. If I recall right its right on the manifold.
Answer . \nAn O2 sensor unscrews like a spark plug and then there are 1-3 wires to rehook up.A special socket may be needed on some models.
Answer . THE O2 SENDOR JUST SCREWS OFF THE SIDE OFF THE MANIFOLD, THEN YOU JUST UNPLUG IT.\nJOSE
Honda oxygen sensor is usually positioned in the exhaust manifold downpipe before the catalytic converter of your Honda vehicle or in the middle of the two mentioned components. For more details: http://sites.google.com/site/hondarepairsite/home/2004-honda-oxygen-sensor
Answer . If it's a 4-cylinder, it's right on the exhaust manifold close to the radiator. Sometime they'll sieze, but I haven't had one to. Use anti'sieze on the new one. Computer may have to be reset by a dealer or other service outlet. I've disconnected my negative battery terminal to do that be…fore..... Answer . Look at your exhaust manifold. If there's a metal bolt-looking thing with a wire coming out the middle of it fairly close to the bottom flange, that's the oxygen sensor. (4-cylinder Accords have one exhaust manifold at the front of the engine; 6-cylinder Accords have another one behind it.) If you don't see this, you've got a carbureted car and, hence, no oxygen sensor.. Start by unhooking your battery, then the one wire coming out of the sensor. Use an oxygen sensor socket to unscrew the old one. Put some antiseize on the new sensor, screw it in and torque it to 25 lb-ft. Hook up the oxygen sensor wire, then the battery, and you're done. (MORE)
Answer There are two o2 sensors, one on the intake manifold and the other on the catalytic converter. where is the oxygen sensor located on 99 Honda accord
Answer . It has two. One on the intake manifold and the other in the catalytic converter.
Answer . \nTHE O2 SENSOR IS LOCATED ON THE MANIFOLD. IT JUST UNSCREWS OFF THE SIDE OF IT, THEN YOU JUST UNPLUG IT.
it will be on the exhaust manifold towards the back by the fire wall or just below the doenut gasket. it will be the first 02 sensor in the exhaust system going from engine to the tail pipe. good luck NEUTZ
Answer . O2 sensors are located in the exhaust stream usually before and after the catalytic converter, it is the only thing that is screwed into the exhaust system and so you dont damage them you should buy an o2 sensor removal tool which is a deep socket with a slot in the side for the wire co…nnector. just unscrew the old one and screw in the new. dont forget to reconnect the wire connector and but only original replacement. (MORE)
Screwed into the exhaust system. Follow the exhaust system from the engine rearward and you will find the oxygen sensor or sensors if it if it has more than one.
don't know what you mean by upsteam O2 sensor but the first sensor is in the manifold, clearly visible with you open the hood. Resembles a larger spark plug and has a wire coming out of it. You can use a 7/8 inch/22mm hex to remove it. Not sure about removing the wire but it's probably similar to th…e O2 Sensor on the CAT. You squeeze the pin holding the connection in place and pull out. (MORE)
Answer . After the exhaust manifold but before the catalytic converter on the exhaust tube.
well i just recently replaced my pre-cat o2 sensor and it's just behind a steel plate on the front of the motor that has about four bolts i think which is also connected to your power steering. The o2 sensor is behind that screwed into the exhaust. so make sure that the car is cool when handling thi…s area. The o2 sensor looks like a spark plug almost, installed the same anyway. Hope this helps somewhat. I'm sure it's the same thing as mine because i own a 2003 focus. (MORE)
Answer . maf sensor or idle air control/ecm. force-clean fuel injectors and reset engine timing and base idle
Answer . If it's a 4 cylinder you have two of them--one in the exhaust manifold and one on the converter. If you have the 6 cylinder, you have two--one on the front exhaust pipe and the other on the converter. Rick I'm a retired ASE Master/L-1 Technician. I still keep current with the late…st automotive technology. Visit my blog for cool articles and TSB's: http://free-auto-repair-advice.blogspot.com (MORE)
Answer . it will be located on the forward side of the catalytic converter of the two that you will find. it is threaded into the exhaust pipe, it takes a 7/8" wrench or O2 socket to remove it.
The oxygen sensor on a 2004 Honda Accord is found on the exhaustsystem. They are placed close to the catalytic converter so thesensors can properly read the exhaust flow.
Bank one refers to the side of the engine that has the number onecylinder. Sensor 2 refers to the second sensor in the exhaust pipecoming from the engine, normally the one past the catalyticconvertor.
you locate which O2 sensor is bad the upstream or the downstream the downstream is normally the one to go bad and you get a wrench I believe it is a 5/8 wrench and take it out of the exhaust follow the wire and disconnect it from the harness and install the new one
First unhook the battery.\n. \nThe oxygen sensor is in the exhaust manifold, so do this when the engine is cold. Disconnect the O2 sensor wire at the connector, screw out the old sensor, dab some antiseize on the threads of the new one and screw it in, then connect the wire and hook the battery up.… (MORE)
The bank 1 sensor 1 oxygen sensor on a 2002 Honda Accord is located on the header. It is right next to the sensor circuit.
I'm guessing it's a 4 cylinder. It will be the rear most sensor in the exhaust system usually behind the converter.
The code reading will be P1166 or P1167 for the primay "upper" oxygen sensor. It is recommended that both of these sensors be replaced every 100,000 miles even if there is no check engine light.. There are two oxygens sensors on the 2002 Honda Accord as well as other years of this make of Honda. Th…e "primary" oxygen sensor the (upper sensor, or the "upstream" sensor) is located under the hood in the exhaust manifold right on the front of the engine. It is easy to see and to reach. It is also usually easily removed. However, you may need to use a special wrench to remove either upper or lower sensor. I don't recommend trying to remove the sensors with a Cresent wrench. Most auto parts stores sell two kinds of O2 sensor removal wrenches. They cost around $10.00 for either kind. One type is a deep well socket with a slot cut up one side so the wire can come out. I don't particularly like this tool because it tends to open (spread) when you apply torque at the end that goes on the sensor. It has a tendency to slip and it may round off the corners of the sensor. If that happens you are in real trouble. I recommend a long, heavy duty 7/8" box wrench, with a slot cut in the box so you can get it on the sensor without cutting the wire connector. I choose not to use any type of penetrating oil when removing the sensors because it is reccommened that the tip of the sensor should never come in contact with any oil (even the oil on your fingers) So be extremely careful not to touch the end of the sensor. The sensors come with a plastic cover to protect the sensor from contact. Only remove this when you are ready to install it. DO NOT OIL OR GREASE THE THREADS.. The lower sensor, sometimes called the "downstream" sensor is located in the catalytic converter, so it's a little more difficult to get to because it's on the underside of the car. You will probable need to raise the car on some safety stands to reach it comfortably. The catalytic converter resembles a muffler, but it is in front of the actual muffler. The catalytic converter will be slightly toward the passenger side of the vehicle. The sensor will be on your right side of the catalytic converter if you are looking at it from under the car and your head is toward the front of the car. It resembles the the upper sensor, if that helps you spot it.. This one is sometimes very difficult to remove. You may have to put some support (blocks of wood, etc. ) under the catalytic converter so you can pull down hard on the wrench without pulling down hard on the catalytic converter and the exhaust system.. After replacing the sensor/sensors take the vehicle to the nearest parts house that will reset the "check engine" light for free. Preferably the parts store that sold you the sensors. so if the light doesn't reset they may have sold you a defective sensor.. I would take my 7/8" sensor wrench with me just in case.. Any member feel free to edit and correct this answer if necessary. (MORE)
top or bottom? The bottom is near the oil plug under the car, the upper is on the back of the motor under the heat shield between the firewall and the motor. This if if you are working with a 4 cyl hope this helps
It is right behind the engine, on top of the rear exhaust manifold and under the windshield wiper tray.
From what I understand , the oxygen sensor ( s ) upstream of the catalytic converter. is used in the control of the air / fuel ratio . The oxygen sensor downstream of the. catalytic converter is called a catalyst monitor and monitors the efficiency of the. catalytic converter
Follow the intake manifold. Sometimes, there are oxygen sensors on the exhaust under the car.
no. the upstream sensor is the one before the catalytic converter and the downstream is the one after
There should be ( 2 ) upstream oxygen sensors. Bank 1 - Sensor 1 - which is for the passenger side of the engine , somewhere in the. exhaust pipe near the engine and before the exhaust enters the catalytic converter. and Bank 2 - Sensor 1 - which is for the drivers side of the engine , also in th…e exhaust. pipe before the exhaust enters the catalytic converter (MORE)
This model accord has two oxygen sensors, when in the front in the motor and one under the passenger seat and both can be pretty costly about 100 apiece..
Can you show me a diagram of the upstream oxygen sensor on a 3.5l liter Oldsmobile Intrigue engine?
There can be from 1 to 4 depending on the year and engine size which you fail to list.
Upstream oxygen sensors send a signal to the PCM which adjusts the fuel mixture ( air / fuel ratio )
First you need to know which one you are looking for. Your car has more than one oxygen sensor. Usually you'll have one in front of and one in back of the catalytic convertor and there may be one closer to the exhaust manifold as well.
Generally Sensor 1 is the one before the Catalyst, and sensor 2 the one after. (IE the first sensor the exhaust comes to.) Also generally Bank one is/are the cylinders on the left (English is read from left to right) when looking at the engine. However this is made hard with front wheel drive c…ars as the engines are sideways in the engine bay, so look at the engine from the end opposite to the gearbox. On most cars this will be the cylinders at the back, as most cars are designed to be left-hand-drive, with the gear box on the left of the car as you sit in it. (MORE)
You have to move the passenger seat all the way forward... pull back the carpet to expose the plug in and where the wire comes up through the floor board. Its hard to get to the plug in but reach back in there and press the plugin part and remove the plug. Take a flat screwdriver and pop the rubber …plug out of the hole in the floorboard... Remove the sensor from the exhaust pipe with a sensor socket (You can get this from the auto parts place...usually free) and screw in the new one and run the wire thru the floorboard and plug it in. It is not easy and takes some patience, but it can be done. (MORE)
the one before the catalytic converter, easily accessible from under the hood, right on the exhaust manifold
I have a 2004 honda the engine light has been on for a while, I have had it check out and they said they thought the sensor was just giving a bad code. I went to start it today and it wont start. wants to but wont. I checked the oil even though its just at 3,000 mile to be changed and it was so low.… A faulty O2 sensor will not cause a no start condition. I will cause loss of power and poor fuel mileage. You need to take your Honda to a professional who can diagnose your problem and not guess at what is wrong. (MORE)
I have been quoted $1500 for a new sensor or $600 for a second hand sensor however when looking at other similar questions - this looks very expensive. Can anyone help?
The one designed for this vehicle. Any auto parts store can sell you the correct one.
All oxygen sensors are the same size. They standardized them because it takes a weird socket with a slot in the side to remove an O2 sensor, and no one wants to own seven or eight different sockets that can turn, at most, four fasteners on the whole car.