Rolls Posted February 8, 2011 Share Posted February 8, 2011 Get hold of a consult cable and use nistune or ecutalk and look at the O2 voltages, then check the coolant temp readings as well, might be a stuffed temp sensor meaning it is always running in cold start enrichment mode. Link to comment https://www.sau.com.au/forums/topic/43095-o2-sensor/page/22/#findComment-5662054 Share on other sites More sharing options...
boiracer Posted February 8, 2011 Share Posted February 8, 2011 (edited) as they said thats how i nutted out that mine was an o2 sensor issue (consult cable). and its fun doing fast and furious hecticness with your laptop on your passenger seat PS watch your floor doesnt fall out when you slam your laptop shut seriously tho, o2 sensors are an awesome thing to replace. my car loved it. even in the city i get 450-500 to a tank....and the highway out west.......600+ (not entirely thanks to the new o2 sensor, but it helped smoother idle etc) Edited February 8, 2011 by boiracer Link to comment https://www.sau.com.au/forums/topic/43095-o2-sensor/page/22/#findComment-5662104 Share on other sites More sharing options...
jackrose01 Posted February 9, 2011 Share Posted February 9, 2011 Because the oxygen sensor can be very expensive, the problem may not with oxygen sensor itself, but may be other factors, it is a good idea to test your oxygen sensor before replacing it. Usually, a check engine light will provide the first indication that you might have a bad O2 sensor. 1 Link to comment https://www.sau.com.au/forums/topic/43095-o2-sensor/page/22/#findComment-5663648 Share on other sites More sharing options...
Galois Posted February 9, 2011 Share Posted February 9, 2011 Dont forget that o2 sensors are due to be replaced every 40-60 thou km. kudos sell $70 replacements for dome modeld of sd kyline Link to comment https://www.sau.com.au/forums/topic/43095-o2-sensor/page/22/#findComment-5663672 Share on other sites More sharing options...
Rolls Posted February 9, 2011 Share Posted February 9, 2011 On 09/02/2011 at 2:57 PM, jackrose01 said: Because the oxygen sensor can be very expensive, the problem may not with oxygen sensor itself, but may be other factors, it is a good idea to test your oxygen sensor before replacing it. Usually, a check engine light will provide the first indication that you might have a bad O2 sensor. Since when does this ever happen? Link to comment https://www.sau.com.au/forums/topic/43095-o2-sensor/page/22/#findComment-5663792 Share on other sites More sharing options...
Owens Posted February 10, 2011 Share Posted February 10, 2011 OK so after going through a 21 page clusterf**k, I ended up buying 2 x NTK OZA395-E2 sensors from Kudos for my R33 GTR. One sensor will clip in perfectly, the other I just need to swap the plug from the old one. I found out my sensors were dead when I hooked up my Blazt Consult Cable and saw my sensors were just flat lining during idle and not osculating like they should. I think I might write up a full DIY PDF for those interested instead of spending hours like I did finding the right information. On 09/02/2011 at 2:57 PM, jackrose01 said: Usually, a check engine light will provide the first indication that you might have a bad O2 sensor. My light has never come on. I think it only would if the sensor(s) weren't connected at all (because no voltage is being received). Datascan also hasn't reported any error codes from the ECU either. Link to comment https://www.sau.com.au/forums/topic/43095-o2-sensor/page/22/#findComment-5664120 Share on other sites More sharing options...
ClutchBurndout-:( Posted February 10, 2011 Share Posted February 10, 2011 why is it such a drama? unless the gtr and gtst o2 sensors are different, u just ask for an r33 o2 sensor from autobarn. easy Link to comment https://www.sau.com.au/forums/topic/43095-o2-sensor/page/22/#findComment-5664141 Share on other sites More sharing options...
jrm Posted February 10, 2011 Share Posted February 10, 2011 Pretty sure that's covered earlier in this thread - they are different. Link to comment https://www.sau.com.au/forums/topic/43095-o2-sensor/page/22/#findComment-5664151 Share on other sites More sharing options...
ClutchBurndout-:( Posted February 10, 2011 Share Posted February 10, 2011 On 10/02/2011 at 1:53 AM, jrm said: Pretty sure that's covered earlier in this thread - they are different. ill shut my big mouth then Link to comment https://www.sau.com.au/forums/topic/43095-o2-sensor/page/22/#findComment-5664160 Share on other sites More sharing options...
Owens Posted February 15, 2011 Share Posted February 15, 2011 Just finished fitting the new NTK sensors after tedious hours of replacing the old ones and went for a test drive. All I can say is HOLY SHITBALLS, I can't believe all my problems have disappeared. - Idle is now very stable and smooth and not muddy like before - Noticeable difference in responsiveness - Definitely increased power - No more wastegate flutter under light boost - this was pissing me off the most and couldn't for the hell of me figure out what was causing it. - Cruising - smooooth like it should be I'm gonna go fill up with a full tank and see what the economy is like. Before I was only getting 350km/50L. Will post up some Consult Cable results of before and after. Link to comment https://www.sau.com.au/forums/topic/43095-o2-sensor/page/22/#findComment-5672340 Share on other sites More sharing options...
Owens Posted February 16, 2011 Share Posted February 16, 2011 Ok analyst report: Following this tutorial on the RB26 was probably the most helpful guide I've ever come across. I followed pretty much every step apart from the splicing the right-hand (RH) sensor wires which wasn't necessary. I just unclipped the pins out of the rectangle plug and switched them to the existing square plug. The other sensor was a straight replacement. Anyone doing this on the RB26 definately needs to use a 22mm sensor remover socket with a universal joint. It's pretty much impossible to reach otherwise. WD40 is also a must to "crack" the sensors loose with enough leverage. When I removed the old sensors, I wasn't surprised how burnt out they looked: Using the Blazt Consult Cable with Nissan DataScan, was able to get a comparison, idling @ 1500RPM: OLD SENSORS: NEW SENSORS: As you can see, there's quite a difference. And just comes to show how f**ked the old ones were, causing my car to run rich constantly. The RH sensor was quite literally off the chart. If your sensors aren't osculating like mine were before, then I would look at replacing them asap Have already done 35km's to work and home on a full tank. Fuel gauge has barely moved at all Link to comment https://www.sau.com.au/forums/topic/43095-o2-sensor/page/22/#findComment-5673543 Share on other sites More sharing options...
senilykSkylines Posted February 17, 2011 Share Posted February 17, 2011 I just replaced my O2 sensor. It would run rough at lower cruising speeds (like when traveling around car parks). My tuner told me that it was the oxygen sensor heat senso that had gone. It would only do it once the exhaust started cooling down. It would do it more so we thought, because I had a 3" turbo back exhaust aswell which would cool down much faster. My tuner said it was making little adjustments the and that is what caused it to go wierd. I also got bad economy...maybe 350-400km a tank with mixed town and country driving. Since changing it I have done half a tank and am definitely using less fuel. BUT it is still doing a stuttering at particular times at idle cruze. It sounds like a rotary sometimes when the exhaust cools down lol. The O2 sensor didn't come with instructions so I hope I installed it right. It had three wires, two white and one black. It didn't know which white wires went around which way so I just crimped them hoping I got it right. Is there any specific way they are suppose to go even though they look the same? My tuner also said that he wouldn't be a 100% sure a new O2 sensor would fix the rough cruise since it may be because the exhaust is so free flowing unlike stock. Link to comment https://www.sau.com.au/forums/topic/43095-o2-sensor/page/22/#findComment-5676377 Share on other sites More sharing options...
Owens Posted February 18, 2011 Share Posted February 18, 2011 I found it to be a real stab in the dark when I was trying to find the cause of my idle/cruise stuttering. Using the Blazt Consult Cable showed me what sensors were the culprit I don't think the exhaust size would have too much of an influence on your issue, since the o2 sensor is on the upper manifold next to the engine. If you're already noticing better fuel efficiency then I guess you did wire up the sensor wires correctly. Next you might want to look at cleaning your AFM's if you haven't before. AFM's need cleaning every now and then because oily residue builds up on the sensor components. This could also be sending false readings to your ECU. Get some "CRC Air Flow Sensor Cleaner" available at Supercheap or Autobarn: http://www.superchea...=157339#details Link to comment https://www.sau.com.au/forums/topic/43095-o2-sensor/page/22/#findComment-5676576 Share on other sites More sharing options...
Moodles2 Posted February 18, 2011 Share Posted February 18, 2011 On 17/02/2011 at 11:08 PM, senilykSkylines said: The O2 sensor didn't come with instructions so I hope I installed it right. It had three wires, two white and one black. It didn't know which white wires went around which way so I just crimped them hoping I got it right. Is there any specific way they are suppose to go even though they look the same? You have a zirconia sensor, they have 3 wires, 1 black and 2 white, both white wires are heaters so it doesn't matter which way they go. Whereas titania is different and it does matter, red wire is the heater positive (also doubles as the incoming signal wire) and white wire is the heater negative Link to comment https://www.sau.com.au/forums/topic/43095-o2-sensor/page/22/#findComment-5676882 Share on other sites More sharing options...
senilykSkylines Posted February 18, 2011 Share Posted February 18, 2011 Thanks guys. Link to comment https://www.sau.com.au/forums/topic/43095-o2-sensor/page/22/#findComment-5677734 Share on other sites More sharing options...
rad100 Posted February 23, 2011 Share Posted February 23, 2011 hey guys i got this sensor.. and wondering how it wires into the rb25 plug? care to shed some light? Link to comment https://www.sau.com.au/forums/topic/43095-o2-sensor/page/22/#findComment-5683886 Share on other sites More sharing options...
J_R32 Posted March 1, 2011 Share Posted March 1, 2011 What "kills" on O2 sensor? excessive heat or excessive unburnt fuel (carbon)? Reason i ask is my 34r runs a Nismo stage1 (aka "generic") tuned ecu. the car does run quite rich. I know my 02 sensors need replacing but will the current rich tune kill the new 02 sensors? should i wait until i do PFC & tune and then replace the 02 sensors then? Link to comment https://www.sau.com.au/forums/topic/43095-o2-sensor/page/22/#findComment-5693753 Share on other sites More sharing options...
Stienway Posted May 12, 2011 Share Posted May 12, 2011 So would I be right in say this http://www.kudosmotorsports.com/catalog/ngkntk-sensor-lambda-oxygen-ntk-nissan-skyline-r33-gts25-gts4-gts25t-rb25de-rb25det-p-1023.html is correct for a R33 GTST 96'? Has any light been shed on what tools are required to remove this sensor? Link to comment https://www.sau.com.au/forums/topic/43095-o2-sensor/page/22/#findComment-5809260 Share on other sites More sharing options...
Galois Posted May 13, 2011 Share Posted May 13, 2011 On 12/05/2011 at 12:20 PM, Stienway said: So would I be right in say this http://www.kudosmoto...det-p-1023.html is correct for a R33 GTST 96'? Has any light been shed on what tools are required to remove this sensor? I'd give him a call, Andrew is a great guy to work with and knows plenty about skylines. That said it looks like the right one. Link to comment https://www.sau.com.au/forums/topic/43095-o2-sensor/page/22/#findComment-5809806 Share on other sites More sharing options...
Stienway Posted May 13, 2011 Share Posted May 13, 2011 On 13/05/2011 at 12:42 AM, Galois said: I'd give him a call, Andrew is a great guy to work with and knows plenty about skylines. That said it looks like the right one. Thanks mate, will do. Link to comment https://www.sau.com.au/forums/topic/43095-o2-sensor/page/22/#findComment-5810443 Share on other sites More sharing options...
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