IS this downstream. I am looking for my 2004 honda civic, and I need a replacement for a downstream sensor
1761478
Yes the one I ordered was downstream. Dont forget to get an oxygen sensor socket as well.usually $20 but your parts store might have a loaner program that has one in their inventory.
1761479
Yes, this is the downstream sensor. The upstream sensor is actually an air/fuel ration sensor and costs ~3 times more than this one.
1761480
Yup, only difference from the upstream sensor is the length of wire. Denso is the one you want
1283268
Each vehicle is different in the amount of O2 sensors they have. Could be 1-4 or even more.If you know you only have two, the upstream is before the converter and the downstream is after it.You need to know which is bad before you replace it. Most parts stores can scan you vehicle and tell which one is suspect.
1606634
Sensor 1 is bad. It's possible sensor 2 is as well but I would start with just sensor 1 because it could be reading "unknown" because the lack of a signal/data from sensor 1. You didn't specify if they were upsteam sensors (O2S11 & O2S12) or downstream after Cat (O2S21 & O2S22), but the upstream sensors are the most important cuz they control fuel trims & Air/Fuel Ratios. The downstream sensor are really only there to tell you if the Cat is good or not. I'm assuming you only have one Upstream & 1 Downstream sensor but some vehicles have more depending on exhaust setup. You may only see O2S11(Upstream 1) & O2S21(Downstream 1) or a combo of O2S11(Upstream 1), O2S12(Upstream 2) & 02S21(Downstream 1). Or even two Downstreams if you have true dual exhaust & not a Y-Pipe. You can tell if it's a upsteam or downstream sensor by the 4th character in the name coding. Example: 02S*1 * = 1:Upsteam, 2:Downstream. You can tell if it's a right or left sensor by the 5th character in the name coding. Example: 02S1* * = 1:one side, 2: other side. (Sorry can remember which one's right & which is left) Hope this helps.
1316064
Upstream on the Sentra SE-R. I installed this on my SE-R. I believe the downstream has a different connector (I haven't changed this one yet). I don't know about other vehicles. I suggest that you do as I did and go to Walker's website and do a search. This verified what Amazon stated on their website. This will save you time and more importantly frustration. I hope this helped.
1142867
The page for this sensor has a compatibility function. Have you tried entering the information into the page and see if it is comparable? Failing that, have you called a car part store and asked what the part number is?
1977584
I buy this for my 2003 Honda CR-V LX and now chick ingin come on and it say O2 sincer upstream need to be replce Is this upstream for Honda crv 2003 LX ??
1562089
2000 Ford f150 5.4L regular gas This part number 15717 is specified for the downstream; bank 1&2, sensor 2 in both cases. Part number 15716 is for the upstream sensors(sensor 1), either bank. These are original spec, exact fit, california approved O2 sensors. They do an excellent job. The downstream sensors can be replaced with a standard box or open end wrench. (I forget the size, 7/8 I think) very easy, takes all of 5 mins each. The upstream are in a much tighter space, especially the passenger side. Passenger side btw is the number 1 bank. Driver side is the number 2 bank. I highly recommend you get the short offset O2 sensor socket wrench. Powerbuilt 648691 Oxygen Sensor Offset Puller or something like it.
144262
I'm not sure if this is for the downstream o2 sensor. Maybe someone else can chime in on that. It's bank 1 sensor 1 near the firewall and you can also use this on the manifold towards the front bumper. They are the same.Yes. This one comes with the wire and plug. Once you are able to break them loose installation is easy.
602059
The pictured item (Denso 234-4189) is downstream of the CC. Cable is longer to reach the connector under the passenger seat. I bought and replaced both this one and the upstream sensor (Denso 234-9001 Air Fuel Ratio Sensor) in my 2004 Tacoma.
440599
Those threaded sensors were the upstream o2 sensors on my 4.7 tundra v8.. the downstream sensors had a bolt on each side to secure it. At least that was the case for my application.
1693938
Hello, Sir; For the UPSTREAM CNG Engine the oxygen sensor part number 13117 For the UPSTREAM GAS Engine the oxygen sensor part number 15716 For the DOWNSTREAM GAS Engine the oxygen sensor part number 15717 or 15718. Thanks. Hope this information are helpful. Thanks
116911
No additional parts for the sensor. My car had four sensors. Depending on your car and the location of the sensor you are replacing, you might find you need a specialized wrench socket to remove the old sensor, but you will just need to check your car and see. Otherwise, very simple and straight-forward.
1168737
No the upstream (first) O2 Sensor should fit in this header. The downstream (second) sensor is already installed before your other catalytic converter. In order to prevent a check engine light I suggest moving the downstream sensor behind the second catalytic converter if you're buying this header.
408149
The correct sensor is DENSO Part # 2344138 OE StyleUpstream Right/Upstream Left
1678823
On my car it's on/near the rear exhaust manifold within the engine bay. The 2nd sensor is on the catalytic converter. I bought a new sensor just to be safe when I had this part installed.
1347027
My car is exactly like yours 2005 Honda Civic LX but without "4AT" ( never seen this addition). Yes , I used this sensor for replacement of original DOWNSTREAM oxygen sensor (located under engine and not visible from engine compartment) Check if this sensor is good for your car by using Amazon test of compatability . It worked grate for my car and solved engine light problem.Sorry,I don't know original part's number and relied on Amazon and its reviewers only.
620807
That part number is for 1997 Honda CRV. It is the upstream sensor which is before your catalytic converter. Please check to make sure that it the one you need. The post catalytic oxygen sensor is part number 234-4098. Hope this helps.