Gtr 02 Sensor Cheap Alternative

[SLVR32GTR]

Hey Guys,

Just a question for anyone with an R33 GTR. Where did you guys get your Oxygen sensors from if you have replaced them, and how much did you pay for them??

I cant see the value in buying them from nissan for a total of $450. I just want some universal ones that i will adapt my old plugs to, but havent had any luck finding some over the last 2 weeks!

The specs are: 18mm thread, Titania Sensor, Three Wire, voltage range of 0 to 1 volts.

As you can see from the pic, my car is a 32 GTR, but i am running 33 dumps, which have the larger thread. So alternatively, if anyone knows where to get the bungs from to run the smaller 12mm thread 02 sensors from that would be great. (or even if you know of where to get them fabricated in Brisbane).

Thanks Guys, im beginning to get desperate!!

SLVR32GTR

Edited June 21, 2006 by SLVR32GTR

[PHATR32]

hey man, im in the same boat.

i asked this question a little while ago, but didnt get any answeres!

hopefully someone can help us!

steve

[SLVR32GTR]

hey man, im in the same boat.

i asked this question a little while ago, but didnt get any answeres!

hopefully someone can help us!

steve

I know what you mean, i have been asking all of the reputable performance shops around Brisbane, also NGK and what not, and all i have recieved back is, "ahh sorry we dont have them or even know where to get them!"

Gets a tad annoying considering i need them in order to do my long awaited turbo conversion!

Surely someone on here has a 33 GTR and has changed there 02 sensors!

[Oldman]

G'day blokes,

Changed my GTR 33 sensors 2 months ago. Cost me $339 for the pair from Nissan(genuine at trade price). I went through the long drawn out process of looking, phoning and eventually talking to technical specialists at most aftrmarket places for replacements. No luck, not made for direct fittment.

[SLVR32GTR]

G'day blokes,

Changed my GTR 33 sensors 2 months ago. Cost me $339 for the pair from Nissan(genuine at trade price). I went through the long drawn out process of looking, phoning and eventually talking to technical specialists at most aftrmarket places for replacements. No luck, not made for direct fittment.

Hehe,

I thought that this would be the response. I suppose i am just suprised that nissan succeeded in making absolutely every part for a GTR the hardest and most expensive parts to come by! hehe

Ohh well, i suppose $339 isnt toooo bad.

Thanks mate.

Oh and for the record, i even went as far as contacting specialised dealers in NZ and the UK with still no luck!! Unbelievable.

[RB30-POWER]

If the GTR uses normal Zirconia type Oxygen Sensors (like the RB20/25), which im sure they would, then just buy a universal sensor with 18x1.5mm thread (standard O2 sensor thread) and you cut the connector and wire from the old sensor and crimp it onto the new universal sensor. (it will come with the crimp terminals and everything)

Universal sensors are around $40 - $80 at most.

You can't solder Oxygen sensor wiring as its stainless. (Thats why they supply crimp connectors with the sensor)

[SLVR32GTR]

If the GTR uses normal Zirconia type Oxygen Sensors (like the RB20/25), which im sure they would, then just buy a universal sensor with 18x1.5mm thread (standard O2 sensor thread) and you cut the connector and wire from the old sensor and crimp it onto the new universal sensor. (it will come with the crimp terminals and everything)

Universal sensors are around $40 - $80 at most.

You can't solder Oxygen sensor wiring as its stainless. (Thats why they supply crimp connectors with the sensor)

Thats the problem though. GTR's (32 and 33 anyway) use titania sensors that are very hard to come accross. Basically 32 O2 sensors (12mm thread) can be bought through NGK, and nissan, but 33 (18mm thread) i have only found through nissan so far.

Talking to Sydneykid, he mentioned that a generic bosch lambda sensor should work for this application and only cost around $80. I have not researched this yet to verify though, so dont take it as gospel. These sensors are available through places like Repco.

Tony

[Beer Baron]

i am currently sourcing pricing on these through a contact in japan as i need some for my 32 GTR. I will let you guys know how that goes.

[RB30-POWER]

VL Commodore and R31 use Titania 02 sensors that have the smaller thread size, have you looked into them at all?

Titaniam sensors are smaller due to their design. They are actually not a self generating sensor like the zirconum type, but a voltage reference sensor.

What this means is that instead of self generating a 0-1V output, it uses a resistor that changes resistance with the air/fuel ratio to give a 0-1V output. It uses the power from the heater 12v supply.

You can interchange them as them as they both give a 0-1V output. The only thing to note is that all Zirconia type sensors are the larger 18mm thread and Titania types are typically the smaller thread.

I have in the past, removed the bung from the exhaust manifold/dump pipe with the smaller thread for titania sensor and got a bung from like R33 dumps that have the 18mm bung and used the cheaper Zirconia type sensors on RB30 engines that originally used the Titania type sensor.

Do the GTR dumps have a large 24mm bung that is screwed into the dumps with the O2 sensor hole inside the bung? If so the bungs just unscrew.

[Busky2k]

Informative reply RB30-POWER.

[wannabeslida]

I know everyone bleats about EBay, they sell titania NTK (original brand in GTR) need to crimp in though for US$65 the pair delivered to Aus.

[Julz89]

I was told in that u can use ford el falcon o2 sensors

[heller44]

Nice work with the search fuction, pity the info is wrong, can't use falcon ones on a gtr, gtst is fine though.

[some_cs_student]

There was some info in the tutorials section, not sure if it will help.

[GTR1993]

Im in the same boat, i have tomei R33 dumps to go on my R32 and one of my O2 sensors doesn't work so i will need to replace them with R33 varients. Im going to try a place i know they are pretty switched on and wholesale oxygen sensors.

[cefiro]

Yeah I need one as well, would be interested in finding out.

[heller44]

My new dumps that I have just installed had the larger mounting hole, went to the local exhaust mob and picked up 2x thread reducers for the smaller size. Cheaper than having to replace both sensors.

[Godzilla32]

My HKS dumps came with reducers which i used to fit new sensors from nissan. What did u use to seal the reducer into the dump so it wont come undone etc?

[700HP-GTR33]

I can feel a group buy coming on...............

[MrStabby]

Site sponsor Kudos does them HERE, but for a 32 GTR its still ~$325. FWIW R31/VL sensors are <$100.... I also need some, and i'll put them in when i install turbos and xforce dumps (which also come with reducers).

Does anyone know if all titania o2 sensors are electrically the same WRT sensor output? (and therefore theoretically adapable?)