Where is the O2 sensor located on the 93 Accord EX? Was looking for a heads up for when I install my new exhaust as soon as the weather gets a bit warmer.... Can't wait till spring finally gets here!

 

Top of the lower dual header pipe (#27)

http://www.hondaautomotivepart...YSTEM

P

 

So the header that was sent to me must be for the LX or DX...The hole for the O2 is on the header itself, it is to screw in on the right side almost where the header bolts to the down pipe.....How do I rectify this without sending it back? Check out the link below here....


http://pg.photos.yahoo.com/ph/...rc=ph


Modified by project93accord at 8:44 AM 2/12/2006


Modified by project93accord at 8:45 AM 2/12/2006

 

I guess you could just plug the hole. But it would be nice to have the right one. I don't think it would hurt anything though. (if you pluged it)

 

It's already plugged. What's that going to do to gas mileage and is the CEL going to be on?

 

No one has any ideas? Or have done this themselves. I am getting ready to complete the exhaust install this week and would like a 411 on the O2 if I should run without and what it will do I don't have emissions in my area so its not a problem but whats my ride gonna do???????....Please help me!!!

 

It would definitely make the CEL come on. You may be able to get one of those whatchamacallits that send the ECU a fake signal. ( to make the ecu think everything is normal). I have no idea what they are called, or where to get one though. sorry.

 

its cool...how about some kind of extension wire...and did you see the pic from an earlier post?

http://pg.photos.yahoo.com/ph/...rc=ph

 

So now you will have no 02 sensor at all? No other sensor port on the exhaust? I doubt if extending the wires from where the sensor was to where the header is would work like it's supposed to. (probably get a different reading, but don't know for sure)

 

So pretty much I'm up a creek if I wanted to do the job this week...

I don't want the CEL to be on...so I guess I could just use the factory manifold and just start with the racing cat and go from there till I can get the seller to replace the header with a correct one....but was hoping to get-r-done all this week on my day off...but o-well you'll have that...so its CEL on or not complete job..

 

From where the sensor port is on the header, it looks to me like it would only be reading from the one cylinder (one pipe). Doesn't look right.

 

Thankx...didn't to me either...If I run with no O2 whats the gas mileage gonna do? Cuz I am only getting 19mpg now

 

Some say it effects gas mileage, some say it doesn't. 19mpg does sound awful though. I think it does effect mileage (air/ fuel mixture).

 

really I thought it was...lol I guess that cuz my last ride was a Chevy Cavalier and it got 30mpg....

 

The loss of the oxygen sensor, for both the pre '96 (OBD1) and post '96 (OBD2) will force both systems to go into Fail Safe. And although the vehicle will run, it won't run properly; and milage will most definitely suffer.
Both Engine management Systems rely on the O2 sensor to gauge where the a/f ratio is (as opposed to where it's supposed to be), and without it, the ecm locks in failsafe - a condition which is pretty much a limp-home mode.
Ideally, to be most effective, the o2 sensor(s) are placed where they read the average output from all 4 cylinders.
On most aftermarket headers, that would be the collector, just before the rear-most pipe flange.
This is not to say that the O2 location (one pipe) wouldn't work (it would have something to sample, but it isn't optimum (and that would be slightly counter-productive now, wouldn't it? )

P

 

Makes total sense....I am going to take it to a street shop and get them to install in the factory location an O2 bung....don't wanna fudge it up..Thanks P yet again..