In my opinion when you are getting an oxygen sensor replaced, go with OEM from honda, or hondaautomotiveparts.com (which is Majestic honda but just sold on the net that is a dealer but cheaper and sold on the net and is OEM).
Bt the way this isnt an advertisment for that website but heres what made me know OEM works best: It directly connects so there isnt any chance of getting the wiring wrong(like i did at first ) and 2.) the build of the sensor looks more substantial.

I also noticed that my OEM one had 2 shields instead of 1 on the universal. Personally i think the universal sensor would be good if the 2nd(cat converter) sensor went out since it isnt used for the air/fuel but not for the primary one.

I replaced my O2 sensor because the CEL light kept goin off. Well i decided to get a replacement for the primary(conformed from code scan) but was cheap and got a Denso Universal replacement. The past few tanks since i put that universal in has been 30, but the way I drive i get 35 average. Today i was just messing around with the old 'broken' sensor wit ha lighter just to see if it got voltage and it did. I had time tonight so i just poped it into the car to see if it worked and so far the CEL light hadnt turned on yet. Hopefully my average will go up.

 

On the one hand, i want good fuel economy, which makes me want to buy honda.

On the other hand, the ******* OEM sensor is $169, the universal is what, like 30-60?

:[

 

true. i woudl have boughten honda becasue even tho its only 5 mpg, that adds u pto like $280 savings for me over a year and im for sure keeping the car for more than that(till it craps out). and the honda ones are $268 here(or like 180 on the internet which is the honda oem on that website i said)

 

you wanna tell us what engine you have?

 

I have the D16Y8, everything is stock(well except for sound system)

 

Id like to see some kind of o2 sensor shootout, i mean there's no guarantee that OEM is better than certain universals, im sure they all vary.