is this pre or post catalytic sensor , I'm looking for the one further rearward.
1716998
The front sensor is the air fuel sensor. The rear sensor is the oxygen sensor. I installed both. Easy Job. My check engine light condition was fixed! Denso makes great parts and they fit EXACTLY
1716999
it goes after the catalytic converter. the wiring goes up through the grommet in the floorboard under the passenger seat.
1717000
post catalytic sensor, http://www.tacomaworld.com/forum/1st-gen-tacomas/75798-o2-sensors.html sensor 2.
640321
There are 2 oxygen sensors total. One before the catalytic converter and one after.
444476
As stated earlier Sensor 1 is air/fuel this is not the air/fuel sensor. What is the check engine code number?
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
1295682
I bought this product, but my mechanic installed it on the first (pre-catalytic) / to the engine side. :(So it didn't work, anyhow before trying this I recommend cleaning the sensors with WD-40 With the battery Un-plugged , and after 10 minutes hanging to dry re-screw them back in
1812056
You have to provide more details about your vehicle. For my 1998 Toyota RAV4 CA Emissions, this was the sensor in the exhaust manifold. The one after the catalytic converter underneath the vehicle is different from this one.O2 and Air/Fuel Sensors are different too.http://www.autoshop101.com/forms/h37.pdf
85257
If you have the V6, both upstream sensor should be the same. Your diagnostic code should tell you if your problem is bank 1 or 2.I only needed to replace the bank 1 sensor and that solved the issue. Check out this web page for more info, (maybe more than you need, or want). http://www.autoshop101.com/forms/h37.pdf
1109183
The notes on the page say "UPSTREAM" - that would be before the catalytic converter. But, check your manual to be sure.
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.
1493752
there are a total of 4 oxygen sensors on that vehicle, 2 before the catalytic converter for fuel trim and 2 after that monitor catalyst efficiency. Although I believe the front and rear are different.
1233595
This is downstream. part number 234-4162 is Upstream. The sensor should be universal to CARB requirements.
1449698
Correction: I was mistaken, this did not replace the upstream sensor, it didn't fit, I had to order a different item. My apologies.In my 2005 Pontiac Vibe it replaced the upstream sensor perfectly.
2044748
2 in front of catalytic converter in Y pipe & if dual exhaust, 2 behind which are a different part number...front & rear O2 sensors are NEVER the same...different readings before & after the converter are needed as well as different heats
2028554
Sensor is located on the back of the engine close to the firewall in the exhaust manifold. You can see it from the drivers side fender.
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.
876504
Yes. It is called the downstream sensor since it is after (down the exhaust stream from) the catalytic converter
1660837
No, this is not the correct part. your vehicle will have one of two possible type sensors. I have both types in stock. part # for stainless steel rail sensor F8CF-9F972-BH / Part # for Aluminum Fuel Rail sensor XS2F-9F972-CB you will need to check your fuel rail to see if its aluminum (round shape) or stainless steel (square shaped) You can call me at 9896442695 for more information. my name is Rob