What is the difference between the upstream and downstream sensor? Can I use two of these to replace both or does this only work for upstream?
1283264
On my 03 CR-V, they are different, since I only replaced the upstream, I can't really say a lot about the downstream
1283265
In the couple of cars I'm familiar with the upstream and the downstream sensors are different.
1283266
Above/before and below/after the catalytic converter. I don't believe you can use the same sensor for both locations on most cars
1283267
On my Honda CRV, code was "Bank 1, sensor 1." This sensor is upstream, which reads exhaust gas as it enters the catalytic converter. The downstream sensor (which is a different part) reads exhaust gas as it exits the catalytic converter.
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.
1283269
They are two different sensors, i recommend going to the Denso website to get the two part numbers. The upstream fails more often and the downstream one is usually cheaper.
1283270
upstream is the number 1 sensor it is a air fuel ratio sensor the. down stream number 2 sensor is an o2 sensor #1 is closer to engine these are different and can not be interchanged
1283271
The upstream sensor threads into the pipe coming from the engine, closer to the front of the car, and the downstream sensor threads into the catalytic converter, more toward the rear of the vehicle. They are not interchangeable.
144258
This sensor works the upstream sensors closest to the manifold in the V6 models. I believe the downstream sensor requires removing the drivers seat as the plug, floorboard seal and pigtail are different. Google the replacement of the sensor and there are several videos on line.
536840
Cody Chase response is incorrect. I also have a Mitsubishi eclipse RS and it is a UPSTREAM sensor (before the catalytic converter). I purchased this product and installed it myself. Fuel economy improved
1246773
They have it at amazon 9706648 also you should get the sensor its a 9703312 ...... bought both at the same time ......one could cause the other to burn out
1834113
This unit comes with the ability to connect more than one sensor. I put one sensor under my washer & purchased a second for under my dryer. I have a wye connector that splits the water going to the dryer and the washer. Should one of the sensors detect water, the solenoid valve will shut off. Once it shuts off, it will prevent water flow to either the washer or the dryer. A friend of mine did not have the shutoff kit & the hose going to his dryer developed a leak. Fortunately he was home & noticed the water flowing down the stairs to his basement. The sensors work as I tested each. I hope this answers your question.
1606636
You should have 4 total, 2 upstream and 2 downstream. Sensor 1 is upstream, sensor 2 is downstream. Bank 1 is drivers side bank 2 is passenger side I think
1638591
No. I had to replace my sensor awhile back because I was getting hot water through the cold water tap. You need the sensor valve for it to work correctly.
1704097
Yes it is, sometimes it's called the oxygen sensor, both are interchangeable names. The code identifies what bank and sensor number needs to be repaired, they upstream sensors, relatively easy to change out with a sensor socket.
1812062
From my personal experience, it looks like there is no distinct difference. When I replaced mine, I wasn't too sure which bank it was so I tried both front and rear with the same sensor. They have the same end connection.
2005542
I tried using another sensor from a different set along with the sensor that came with the receiver it did not work. Sorry.
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.
1422723
I used the same brand. The sensors after about 10 years will begin to fail. After discussing the issue with tech reps from the manufacturer I replaced all of the detectors with the new replacement model and have had no problems.
287926
This is an upstream sensor. It has a short cable and special plug that fits Nissan upstream connectors. The cable is also thick because of the high temperature of the manifold.
624409
Upstream sensors are located before your catalytic converter and downstream are located after the converter. Using the diagrams in the repair help section on autozone.com can help a lot.
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.
1313395
Yes I have been trying to use 2 of these, one for the Ref/Freezer in the kitchen and an another unit's single sensor in a freezer in the garage. Unfortunately they try to talk to each other and get messed up with which sensor to read and display. For example, I get the same reading for the freezer outside in the garage as I do inside the house, but I know they should be different readings. I also tried using one sensor in the garage freezer and another to read the ambient temperature outside, but still had the same kind of problems. Both would show the fridge temperature instead of separate readings for in the house and outside. I've been looking for alternatives (wireless) but have had no luck yet. The manufacture needs to add a switch to change the transmit frequency used for unit one and unit two.
1421309
Part number: 15716 OE Type; 4 Wire; Heated; Upstream Sensor Part Number: 13117 OE Type; 4 Wire; Planar; Upstream Sensor Always do a Internet search..The one you inquired about has a different wiring setup