S14: OBX and DC Header what size O2 bungs?
I know the earlier S14 uses a 12mm O2 sensor, but the later uses 18mm.
Do these have adapters or are they made in one size and you have to do the adapters yourself? Thanks Å |
they both should have standard o2 bungs...
the only time i have ever seen an adapter was inside of my stock manifold back when i had my Sohc... o2 sensors are pretty much standard across the board and all bungs are standard. |
AFAIK (I only have a later model), I have a 4 wire 18mm O2 sensor. The early model S14 uses a 3 wire 12mm O2 sensor. They don't work in the same ports.
Nissan told me they showed to different part numbers as well. I don't want to have a surprise on my hands. |
what kind of surprise are you expecting? the header will come with appropriate size bung for that engine, which i believe are all the same size. so other than the possibility of confusing the o2 bung with the one for the egr tube, i don't see the problem.
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Originally Posted by jramosthe1st!
(Post 360950)
what kind of surprise are you expecting? the header will come with appropriate size bung for that engine, which i believe are all the same size. so other than the possibility of confusing the o2 bung with the one for the egr tube, i don't see the problem.
I am not sure if the OBDI 1995's have a 2nd o2 or not. |
idk where you got the two different measurements for the o2 sensors, as far as i know there is only one size for all. the 2 or more (4 on some trucks) o2 sensors is a obd II thing that began to be used in 1999/2000 iirc.
even if the 95 obd I had two o2 sensors only one would go on the header. 1 pre cat and 1 after cat. |
Originally Posted by jramosthe1st!
(Post 360959)
idk where you got the two different measurements for the o2 sensors, as far as i know there is only one size for all. the 2 or more (4 on some trucks) o2 sensors is a obd II thing that began to be used in 1999/2000 iirc.
even if the 95 obd I had two o2 sensors only one would go on the header. 1 pre cat and 1 after cat. http://www.negative-camber.org/jam14...45/240ecu.html |
the obd1 s14 uses a 1 wire and the obd2 uses a 3 wire. my 98 has a 3 wire. they are the same size, thread, and pitch
but why not just keep the stock manifold, and put an sr downpipe on it? |
Didn't think of a downpipe, i will look in to them, Thanks! Much cheaper.
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i had this problem when i got my downpipe, the o2 sensor after the cat is alot smaller than the one in the manifold, i got a 1.00 adapter from home depot it has 3\8 outer thread with 1\4 inner thread and got some high heat teflon tape. no problem so far but i am going to buy a universal o2 sensor that actually fits here soon.
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Originally Posted by alkemyst
(Post 360995)
Didn't think of a downpipe, i will look in to them, Thanks! Much cheaper.
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Originally Posted by DcrPrz
(Post 361000)
i had this problem when i got my downpipe, the o2 sensor after the cat is alot smaller than the one in the manifold, i got a 1.00 adapter from home depot it has 3\8 outer thread with 1\4 inner thread and got some high heat teflon tape. no problem so far but i am going to buy a universal o2 sensor that actually fits here soon.
Let me know what o2 sensor would be compatable. |
Dude all the bungs are the same PDM sells the bungs in 1 size for O2 sensors.
Even the EGR pipe bung is the same size as the O2 sensors.. |
you obviously have never worked on an s14, or at least mine. The EGR, precat o2 sensor, and aftercat o2 sensor are all different sizes.
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never mind.
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