Jump to content
SAU Community

Omg O2 Sensor

Kevs

By Kevs,
in Western Australia

 Share

Recommended Posts

Kevs Contributor

Kevs

Posted
Posted

Hey guys,

i have asked a few mates about o2 sensor, some of them said runs fine without one. I have run my sr over half a year now since i have a new engine drop in and what i found out is that the workshop that did the engine conversion didnt install the o2 sensor for me. what i saw is they blocked the o2 sensor hole with some washer or something like that, i having difficulties of starting the car every morning, i called them up and they said was the fuel pump too big and need the regulator... help me guys...

cheers

Link to comment
https://www.sau.com.au/forums/topic/370483-omg-o2-sensor/
Share on other sites
Hanaldo Grand Master

Hanaldo

Posted
Posted

Yeh my o2 sensor isn't connected in my car, runs fine without it. The car 'surges' a bit when cold and in closed loop, but fine other than that.

As for the fuel reg, they are a waste of money. Completely unnecessary if you have correct size injectors.

Link to comment
https://www.sau.com.au/forums/topic/370483-omg-o2-sensor/#findComment-5905804
Share on other sites
Hanaldo Grand Master

Hanaldo

Posted
Posted

That's aftermarket fuel regs, not the standard one.

Yeh that's what I meant.

Personally if it's a street car than I'd have the 02 Sensor working, as closed loop control will give you much better fuel economy.

Depends how it's tuned. If it is tuned properly around cruise then you may get better fuel economy. I get 600kms to a tank if I drive nicely, 550ish if I drive around on boost a lot.

Link to comment
https://www.sau.com.au/forums/topic/370483-omg-o2-sensor/#findComment-5906434
Share on other sites
Pal Veteran

Pal

Posted
Posted

Depends how it's tuned. If it is tuned properly around cruise then you may get better fuel economy. I get 600kms to a tank if I drive nicely, 550ish if I drive around on boost a lot.

i get 350 to a tank, maybe need to turn one turbo off :laugh:

Link to comment
https://www.sau.com.au/forums/topic/370483-omg-o2-sensor/#findComment-5906813
Share on other sites
GTS-t VSPEC Grand Master

GTS-t VSPEC

Posted
Posted

Depends how it's tuned. If it is tuned properly around cruise then you may get better fuel economy. I get 600kms to a tank if I drive nicely, 550ish if I drive around on boost a lot.

Yeh my o2 sensor isn't connected in my car, runs fine without it. The car 'surges' a bit when cold and in closed loop, but fine other than that.

So other than the surging its all good ? :whistling:

Link to comment
https://www.sau.com.au/forums/topic/370483-omg-o2-sensor/#findComment-5907113
Share on other sites
Kevs Contributor

Kevs

Posted
  • Author
Posted

so you guys mean running without o2 sensor doesnt really matter? then i have to look at my fuel pump, i dont have an aftermarket fuel regulator which makes the cold start really hard.... crank a few times before start... i surprised that honaldo runs 550-600 for a tank... mine only runs 350-400 for a tank with running stock boost 6-7 psi. ALso my carblowing smokes when i hit boost... wtf? you guys recon my turbo is weak now?

Link to comment
https://www.sau.com.au/forums/topic/370483-omg-o2-sensor/#findComment-5907117
Share on other sites
Hanaldo Grand Master

Hanaldo

Posted
Posted

So other than the surging its all good ? :whistling:

Well as far as I can associate with the O2 sensor yes... Car has gremlins, I'm missing about 100rwhp and 500rpm of response, but can't see that relating to the o2 sensor. Still searching for an answer to that problem. I also get a lot of reverberation, but again that is to be expected having an AFM in front of a big turbo.

As for the 'surging', that doesn't really describe it. It's not like a fuel surge you get from running low on fuel. It's like when I'm cruising on decel, using the engine speed to maintain roadspeed going down a hill or something like that, it sort of feels like I'm tapping the brake slightly and then taking it off. It slows down a tiny bit then picks back up. If I touch the accelerator at all then it doesn't do it. Given it only does it when cold, I imagine it is sensor related. Can only think of either TPS or o2 sensor, and seeing as my o2 sensor is unplugged then it makes sense.

/long winded explanation :P

Link to comment
https://www.sau.com.au/forums/topic/370483-omg-o2-sensor/#findComment-5909535
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • MBS206
      Shoota's R33 GT-R RB30/26

      By MBS206 · Posted

      It only looks tidy, as most of the stuff that was on the whole back wall, is now in the trailer to go to the tip, or has been shoved in my 2.2x2.4m "Spare parts room", and now I can't get to anything in there Ha ha ha I could definitely do with a bit more space, but I'd just end up with your problems I'm going to enclose the car port beside the garage, and move a lot of stuff into it I think. OR... It will be setup as a fabrication area, and the main garage will have parts storage in it. I'm not sure yet... Need some pictures of that big shed you've got with the bikes and Skyline in
    • PranK
      My BMW 335i

      By PranK · Posted

      No. I think it's gone. 😭 I think you can get body coloured ones on eBay so I think I'll get one of those... Or just hang a red ribbon from the hole and whack a TOW sticker next to it.
    • Milkmun
      Cleaning my wheels 😍

      By Milkmun · Posted

      Can't say I've had a bad experience with one on my car, then again it only gets washed once or twice a year... The wheels on the other hand, get a good spray often due to my shitty dusty pads.
    • Shoota_77
      Shoota's R33 GT-R RB30/26

      By Shoota_77 · Posted

      @MBS206 thats pretty neat and tidy to me!  I'll get a photo of mine when I'm out there next. It might require multiple photos to understand the scale of the atrocities though... In total I have 4 sheds of varying sizes and layouts. Main shed is 14x8, second shed is 3x8, third shed is 11x2.5, fourth shed is around 6x4.  All are pretty much full.   The main goal of my cleaning tsunami is to make the main shed predominantly car and motorbikes only. Second shed is my metal fab room (2 x bench grinders, drill press, bench belt sander, metal band saw, scrap metal storage and some of my garden tools.  3rd shed is more bigger garden stuff, storage for engine crane, jack stands, concrete grinder, concrete mixer, air compressor lives there, and it now has two 2mx2m pallet racking shelves with itemised boxes holding building stuff, electrical stuff, plumbing stuff, etc, etc.  The 4th shed is Ryobi electric ride on mower, mini boom sprayer, ancient Kubota tractor, more garden stuff!  I have got a lot of shit....  Then there's the pool house (8mx4m) and the pool pump shed (4mx4m).  I built all of the sheds over the 11 years we've been here.  The main shed was a Ranbuild kit, the rest are all custom made to fit the areas available. Building the main shed taught me a LOT as I had no idea about building anything prior to that!  I've still got one more in me. It will be my man cave which I poured the extra concrete for way back when I poured the concrete for the main shed. The idea is the Skyline will be a centre piece of the main cave once (if...) it's finished.  I told my now 14 year old son yesterday that I will 100% drive him to his year 10 formal in 2 years. Still a long way off but at least I now have a date to work towards! 🤣
    • niZmO_Man
      Duncan's V37.......race car?

      By niZmO_Man · Posted

      Modern oils are amazing. Add tyres to that as well.
×
×
  • Create New...