let me know what u guys think about it. sry bad pic

 

Blurry!. Sorry!! It looks like I need to check mine. Did you replace it with another of the same, or did you go wideband? I'm wondering if you have a new engine, is it worth spending the extra cash for one?
Thanks
Mark

 

no just replaced with a botch from advance auto parts. 18 bucks cant beat that. i did it for better gas milage. if you have never changed yor O2 sensor. do it.

 

but was i was wonder is if i am running lean?

 

bump

 

Correct me if im wrong but arent you supposed to run a wideband closer to the main cat? Like its recommended not to run the wideband sensor in the stock o2 sensor port.

 

I dont think he said anything about location of the sensor.

 

the bosch sensor he got is a regular bosch replacement I believe. I don't think he said anything about wideband. Plus, I don't think the wideband sensors are $18.

 

don't care where it goes. Just asking if it is under normal stock or near stock conditions if it is worth it, or is that more for people who are tuning to ensure it doesn't go lean under boost!!
Sorry, I screwed your post. Answer catch-22's question. Is his engine running lean.

 

Nah he didnt but rx7 japan asked if he just replaced it or went wideband.

And then i made my post assuming he was talking about the stock port.

 

^^^ I think he was just replying in response to the one guy asking about replacing the O2 sensor with a wideband...

My O2 sensor looked like that when we I replaced my pre-cat with a downpipe. Here's a follow up question... my pre-cat is an HKS, and when I installed that, I simply removed it from the pre-cat and installed it to the downpipe. I think it's original So replacing that is probably a must, eh? Does the new Bosch part you bought come with everything? wire and connector on the end and all? Simply unscrew and replace with new?

 

It doesn't come with an OEM connector, it comes with a crimp. So you will have to cut the OEM connector off the engine side and then just crimp it together.

 

I've been running my wb o2 sensor in the stock port for about 5k miles now with no problems. I've never heard anyone claim to have a problem.

 

That sensor looks like any other used O2 sensor. You're fine.

(and my car has gone through a couple of the Bosch generic sensors now. No problems )

 

Fair enough... so the Bosch one can be bought at any supply store (i.e. Advance Auto), and does not come with an OEM connector, but the sensor itself should bolt right in? But it sounds like crimping it on the the existing should be no problem. I'll probably need heat shrink sleeves? Also, I don't recall if a special socket/took is need to unscrew the old one and put in the new?

thanks.

 

You can just use some electrical tape. As far as the socket, IIRC, a 23mm or so wrench will fit it. There are specific O2 sockets you can get but IIRC they work on the stock O2 but not the Bosch replacement (too big I think).

Its been years since I've seen a stock O2 sensor (been using the Bosche replacements for quite a few years) so hopefully that's all correct.

 

See here: https://www.rx7club.com/showthread.p...25#post5956925

And it's 22mm or 7/8" - also the tool in that post fits over the bosch replace sensor; just barely.

 

Instead of using the crimp connector for the O2 sensor, why not just do like I did...

I cut the connector from the original O2 sensor, crimped that onto the O2 sensor lead (because it's alot easier making a solid connection with the pipe pulled than trying to get to the stock location), and then the connectors matched. I did it with the DP pulled, because I was already working on the DP gaskets anyways. I also picked up the O2 sensor socket, but with the DP pulled, you could just use an open end wrench.

 

Isn't that what everyone does? Cut the connector off the old stock O2 sensor and use the crimp to attach that connector to the new generic sensor?

Downpipe brands are probably different but I have no trouble changing the O2 sensor in my Bonez downpipe from underneath with a crescent wrench. O2 sensors have a metal crush gasket on them; they don't need to be very tight to seal. Most people overtighten them in my experience.

 

Idk, i just heard that you have to tap into another section of the DP for the wideband.

Could it be because you need the stock o2 if you still have the stock ecu?

Can you just run the wideband if you're running the stock ecu?

 

thanks for everything guys. yeah what i did was just cut the thing off the end of the new o2 sensor and soldered it to the old wire. hope its ok to do that.

 

Yes its ok as long as you soldered it well. I would wrap the solder connection with some shrink tape just to be safe. Make sure it stays away from moisture, dirt etc etc.