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Horray! Success!!

The O2 sensor socket arrived yesterday so last night I got stuck into my Stagea 260RS and switched over the O2 sensors. After much swearing and 3 HOURS, the job was done.

I used NTK sensors that had the following number on the body OZA395-E2 KBA16693. They were ordered from Global EFI with part number 351-0040. Once the job was done, I stuck on Consult (at 12:30 at night) and watched the voltage of both sensors flick up and down like it should at cruise (before, 1 sensor was doing pretty much nothing). The car seemed to idle nicer (I have had idle problems since I bought it), but this could just be in my head. I'm waiting for my wife to tell me how it cold-started this morning.

I noticed the following things from this job:

-The stock sensors are Zirconia, not Titania. I can't confirm that the R33 GTR is identical to the 260RS, but I'm told this is the case.

-The leads on the new sensors were shorter than the old ones. This means I couldn't clip the lead onto all of the little guides, but at least they reached.

-The rear sensor has a rectangular plug that fitted perfectly. The front sensor had a square shaped plug that was different. It was an easy job to unpick the connectors from the new plug and re-use the old plug. This meant that I didn't need to join wires or anything nasty like that :P

-From what I've read in the past, I thought it was the rear sensor that had the square plug. Perhaps people are confused because the plugs that the O2 sensors go to are sat side by side. However, the front sensor goes to the rear plug and the rear sensor goes to the front plug!

So there you go... the Stagea 260RS (and possibly R33 GTR) take the same Zirconia sensors as the GTS-T and at $77 from Global EFI, you can't really go wrong :woot:

I'm very happy. Thanks heaps for all the advice guys.

Edited by BoostedBarge
Good to hear mate.

Does Global EFI have a website/mail order service? I need one for my subie.

I haven't seen a website or mail order (it would be nice). I just rang them. They are easy to deal with over the phone

Update on results: the idle problem still seems to be happening (prob unrelated). I took the car camping on the weeken up Mt Tamborine, which involved both highway driving and mountain roads (and occasional flogging). So far I got 240km out of half a tank. I think that's the best we've ever got. If I get more than 400km out of the tank, then I'll know the O2 sensors have made an improvement.

Edited by BoostedBarge
I haven't seen a website or mail order (it would be nice). I just rang them. They are easy to deal with over the phone

Update on results: the idle problem still seems to be happening (prob unrelated). I took the car camping on the weeken up Mt Tamborine, which involved both highway driving and mountain roads (and occasional flogging). So far I got 240km out of half a tank. I think that's the best we've ever got. If I get more than 400km out of the tank, then I'll know the O2 sensors have made an improvement.

Hi Boosted Barge

i am really keen to know if this has indeed improve mileage. i have a R33 GTR and for a full tank it only does 200 - 220 km with driving OFF boost. i tried to google Global EFI and didnt get related results, whats their tel #?

with this price i dont mind trying it out even if they dont work with GTR RB26DETT

Cheers

Hi Boosted Barge

i am really keen to know if this has indeed improve mileage. i have a R33 GTR and for a full tank it only does 200 - 220 km with driving OFF boost. i tried to google Global EFI and didnt get related results, whats their tel #?

with this price i dont mind trying it out even if they dont work with GTR RB26DETT

Cheers

That's terrible fuel efficiency. My Stagea 260RS has the same engine as yours, but lugs around an extra 200kg and I was getting 300-400km out of the tank before fitting the O2 sensors. So far, since fitting the sensors I've got 240km out of half a tank (half highway cruising, half mountain roads with the occasional flogging). Maybe something else is wrong. I'd suggest doing a fault code check or plugging COnsult into it (if you don't have Consult see if someone on the forum near you could lend it to you). THe number for GLobal EFI is 0755310055. There's a also a group-buy on O2 sensors going at the moment. I can't confirm if the group-buy sensors are identical to the ones sent to me from Global.

ok, i went to the effort of reading all 15 pages (and i'm a slow reader!) and i didn't find an answer to my question. i took my car to the garage the other day and asked about the whole o2 thing as i'm getting bollocks economy. anyhoo, the guy turned off the o2 sensor from my power fc to see if the economy improves. does this make sense? i wouldn't have thought the economy would go any better just because the sensors are turned off but i'm going to run through a tank first to see how it goes - so far looks the same though. this is a 32gtr btw. cheers guys - sorry to make this thread even longer!

That's terrible fuel efficiency. My Stagea 260RS has the same engine as yours, but lugs around an extra 200kg and I was getting 300-400km out of the tank before fitting the O2 sensors. So far, since fitting the sensors I've got 240km out of half a tank (half highway cruising, half mountain roads with the occasional flogging). Maybe something else is wrong. I'd suggest doing a fault code check or plugging COnsult into it (if you don't have Consult see if someone on the forum near you could lend it to you). THe number for GLobal EFI is 0755310055. There's a also a group-buy on O2 sensors going at the moment. I can't confirm if the group-buy sensors are identical to the ones sent to me from Global.

Thanks. i will take it to a place where they have Nissan consult to do a scan then, it might as well be. i had it only for two weeks and filled up two tanks already :) i had my 210rwkw gtst and it was doing good 350 - 370 per tank and thats with flooring on first second and third ;)

please do post(i know you will ) what you will get this time for a full tank.

cheers

ok, i went to the effort of reading all 15 pages (and i'm a slow reader!) and i didn't find an answer to my question. i took my car to the garage the other day and asked about the whole o2 thing as i'm getting bollocks economy. anyhoo, the guy turned off the o2 sensor from my power fc to see if the economy improves. does this make sense? i wouldn't have thought the economy would go any better just because the sensors are turned off but i'm going to run through a tank first to see how it goes - so far looks the same though. this is a 32gtr btw. cheers guys - sorry to make this thread even longer!

Thats spot on mate, what the guy did is correct. when my gtst's O2 sensor gave up my tuning guy turned it off from Power Fc. it did more K/tank with O2 sensor off, best way to isolate the issue. i wish my new R33 had a apower FC :) well..

How do you do this? Is it only in datalogit or can you access this from the hand crontroller.

For those with large dia bosses for small dia sensors, I picked up a pair of adapters from the local exhaust mob for about $35, screwed straight in. Pity that one of my original sensors looks like it didn't like being removed and replaced, or was dead previously without me knowing.

slow reply but none the less. :wave:

The option is in the newer PFC's. From memory its in the Function select area. Where you turn on/off the option to use o2 feedback, boost controller etc.

It was a bit of a bugger. I paid $190 for a new o2 sensor only to have the tuner turn it off and leave it off. Economy is great regardless so I careless. :(

Changed my O2 sesor and could't be happier, I get an extra 100kms out of a tank now, fuel economy is 10 - 10.5 L / 100 kms for stockish r33 gtst. When I pulled the old one out, the insides looked all broken, no wonder it wasn't working, car has done 110k which is fair enough.

Everyone seems to be getting good results from changing o2 sensors!!

Ive just ordered mine from the good guys at kudos! hopefully it arrives this week sometime and ill wack it in on the weekend!

More fuel economy FTW

  • 2 weeks later...

i just bought an EL falcon 02 sensor from repco for $71.99, I made sure that the thread would fit the new dump pipe i'm installing.... My R33 gtst series 2 has 3 wires for the 02 sensor, 2 white and one black, and the new 02 sensor has 2 black and one blue. I am assuming that the blue wire on the new 02 sensor connects to the black wire on my car, and i supose it doesnt matter which other 2 wires are conected to which????? can somebody confirm this????

i just bought an EL falcon 02 sensor from repco for $71.99, I made sure that the thread would fit the new dump pipe i'm installing.... My R33 gtst series 2 has 3 wires for the 02 sensor, 2 white and one black, and the new 02 sensor has 2 black and one blue. I am assuming that the blue wire on the new 02 sensor connects to the black wire on my car, and i supose it doesnt matter which other 2 wires are conected to which????? can somebody confirm this????

why didnt u buy a nissan one? they are about the same price....

well these guys arnt much help lol.... to answer anyone else who has a question like mine in the future there should be 2 wires coloured the same as each other on the standard car wiring harness and one coloured another colour......

on the 02 sensor the colours may not match,,,,, but the will always (should always) have 2 wires coloured the same and one coloured different.

Connect the 1 odd coloured wire from the 02 sensor to the odd one out in the original harness.

then it doesnt matter about the other 2, just make sure both of the left over wires from the 02 sensor are connected to the other 2 wires of the original harnes. make sure they dont touch obviously

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