02 Sensor Reducer Nut

[DAS KAMU]

hi there just installed my new turbos (thanks kudos Motorsports)

the 02 sensor holes onmy new dumps are for the large size o2 sensor and my 32gtr has the smaller size

the ones that were on the factory dumps did not fit not sure why

any way i can sort this im currently running no o2 sensors

how do i sort this?

[R31Nismoid]

Sounds like someone has put R33 O2 sensors on at some point if your car has smaller ones.

I remember getting a reducer nut with my Trust Dumps, but not totally sure where you would buy them aftermarket off a shelf.

Perhaps a hardware store?

[DAS KAMU]

found a set of silvia skinny o2 adaptors

can someone please confirm that i can use this?

er spec o2 sensor adapter for nissan sr20det

please copy and paste this link im using a shitty apple and dont know how to cut and paste!

[DAS KAMU]

ok looks like i need this

http://enjukuracing.com/spec-sensor-adapto...det-p-6408.html

these guys seem to not ship over seas

can anyone help me out here with this?

[DAS KAMU]

has no one come accross this issue before?

[R31Nismoid]

if your really worried just have the old nut cut out and a new one fitted

or swap back to factory o2 sensors

or get R33 dumps and sell R32 ones

but until you've tried a hardware store (a big one) i wouldnt worry too much

[DAS KAMU]

ok well ill check out the hard ware store on monday

ill take down the o2 sensor and explain what im looking for

how do i work out what the inside bolt size is on the dumps?

[DAS KAMU]

wonder why i have skinny type o2 sensors? dosent seen wotrh the trouble? they dont work with out a bit of modification do they?

[R31Nismoid]

simple wiring change, nothing major.

[DAS KAMU]

what key words should i look for in the search function mate?

so my car originally came with the fatter type o2 sensors huh

Edited January 18, 2009 by DAS KAMU

[R31Nismoid]

You go down to a bunnings or something today?

[DAS KAMU]

yeah but was a bit futile as the dumps are on the car are blanked off

and im not sure what outer bolt size to ask for

i did see the reducers there and there should be one that i need

i dont have the o2 sensor here with me either so i cant tell them that either

ill have to wait till next weekend now

oh well live and learn lol fail x 100000000

[DAS KAMU]

would the o2 hole would be half inch across?

Edited January 18, 2009 by DAS KAMU

[DAS KAMU]

is it possible i can use a 33 gtr o2 sensor as per this thread?

Having the same problem, hence why i started my own thread!!

Just to clear things up. Both R32 and R33 GTR's use a sensor made out of titania. Both use a three wire plug and both have a voltage range of 0 to 1 volts. This is why the Power FC is generic for both in regards to the O2 sensors. The ONLY difference is the thread size of the sensors.

R32 GTR: 12mm thread

R33 GTR: 18mm thread (spark plug thread)

Now, both use the same plug formats as well i believe, which differ from the front one and back one.

The factory serial numbers (genuine nissan) for these items are:

R32: Front - 22690-05U21 (Flat 3 wire plug)

Rear - 22690-05U22 (Square 4 pin plug)

Alternatives - front - NTK OTDF-P1P

rear - NTK OTDF-P1L1

R33: Front - 22690-24U02 ($209 from Metro Nissan Brisbane)

Rear - 22690-24U01 ($212 from Nissan)

So as you can see, buying genuine nissan is just being A$$ raped, hence why i am looking for alternatives.

Tony

as they seem to be fatter and should fit perfect?

[MBS206]

Erm... That tells me you want to reduce from 18mm to 12mm...

And most likely the thread pitch is 1.25mm...

Go back to bunnings...

[Duncan]

yes....just use the 33/34 o2 sensors they will be fine. we swap them all the time.

[MrStabby]

I bought xforce dumps and they came with the adapters, so you could try an xforce stockist. BUT with these adapters the o2 sensor is well back from the exhaust flow as it holds the sensor quite far out. I'm concerned this will affect its operation...

[heller44]

My local exhaust shop had them next day for me.. ring and ask someone.

[DAS KAMU]

thanks for that

i pm'd just jap and they happen to have what i need in stock

but thanks for the responses its awesome being part of a community that work together

p.s went to 3 exhaust shops and coventry fasteners and 1 smaller hardware store and also a reece plumbing store today

none of them had anything that i needed lol

at the end of the day i could have bought a bolt drilled a hole and tapped it

p.s again upon reserching it seems 32 sensors have diff voltages compared to 33 - 34 so i didnt head down that path

[DAS KAMU]

I bought xforce dumps and they came with the adapters, so you could try an xforce stockist. BUT with these adapters the o2 sensor is well back from the exhaust flow as it holds the sensor quite far out. I'm concerned this will affect its operation...

im not running any o2's at all at the moment

people said id be having economy issues etc but the car runs fine and uses the same or less fuel than before i removed them?

but better to have them in than not at all

great example pic btw!