Oxygen Sensor Problem and Replacement

[prolego]

I now have my Competch headers and Tubi exhaust on my 95T. On the way to get them installed my check engine light came on. After a through check I continued and told my mechanic. He said is was an oxygen sensor code. He had a used sensor from a Acura (not NSX) and installed it. Now the light is back on after about 100 miles.

I have several questions:
I have heard several NSX owners tell that they had trouble with O2 sensor after installing headers. Is there a cure?

Are the O2 sensors in the NSX and other Acura's really that much different?

Does anyone know the part numbers for each NSX position of the Acura sensors if they exist?

If going for original NSX replacement sensors what brand has the best track record? Price?

I did a search on past forums and and did not find much information, so I'm sorry if this is covering old territory.

Thanks to all for the help on past posts.
Everyone has been helpful.
Prolego

 

[Larry Bastanza]

prolego,

First thing is that the 1995 NSX is ODBII so you have (4) 02 sensors. So it is important to know which one, although these are basically all the same, with the exception of the wiring length, grommets and possibly connectors. The four 02 sensors on the NSX do not cross reference to any other Acura model, again I beleive this is based on the wiring lengths, etc. Since these are near the exhaust, the wiring must be routed carefully for obvious reasons.

So all and all I think you need the proper versions. I suggest you check out some of the NSXCA discount dealers like Niello Acura, www.Hondacuraworld.com, Gunn Acura, to name a few and get some pricing.

HTH,
LarryB

 

[len3.8]

The 95T is under an Acura extended warranty for O2 sensors. I just got my $$$'s back from my Acura dealer after he charged me for O2 sensors.
See if this thread helps you out. Fury NSX helped me out with it.

http://www.nsxprime.com/forums/showthread.php?s=&threadid=1352&highlight=oxygen+sensors

 

[prolego]

Oxygen Sensors

Thanks len3.8. You are correct. I called Acura and they said I just need to make an appointment. It is covered under an extended warranty. That was music to my ears!!

Thanks

 

[len3.8]

No prob. Glad to pass on what someone passed on to me.
They also will change out spark plugs from 75k, check on that when you go in as well.
http://www.nsxprime.com/FAQ/Reference/tsb/98-031.htm

Len

 

[NSX 3.0]

Hey Len what year is the Yellow 911 in your avatar nice trio of cars.




Steven 91 Blk/Ivory

 

[len3.8]

93RSR clone. Built on earlier non-sunroof chasis.
It is mainly a track car.
Thanks
Len

 

[Nsx Service Girl]

There is actually an emissions extension on '95 model NSx's that cover's various components of the OBD system until 150,000 miles.

 

[NSXpnsv]

'93 NSX

Do you know if the '93 Nsx has any extended warantee for O2 sensors?

 

[Larry Bastanza]

1993 is OBDI and not covered

HTH,
LarryB

 

[mike7423]

My O2 Sensor just went out. Are 97's covered under the extension?

 

[Nsx Service Girl]

O2 Sensor Failure

Yup, it is covered in service bulletin 98-031 .

Susan

 

[mike7423]

YES! The dealer quoted me $350 to replace the sensor. They thought it might me covered, but were not sure.

Thanks Susan, 350 times!

Mike

 

[Nsx Service Girl]

O2 Sensor Failure

blushing....
You are welcome!

 

[BryanZublin]

I've heard that O2 sensors go bad following a header installation because of the use of anti-sieze spray on the bolts.