Jump to content
SAU Community

O2 Sensor Not Working Properly

BOOZTJUNKEY

By BOOZTJUNKEY,
in General Maintenance

 Share

Recommended Posts

BOOZTJUNKEY Proficient

BOOZTJUNKEY

Posted
Posted

as above got my consult cable sorted today very happy with the product although it has shown an issue with my o2 sensor ....

It's showing 0 volts at the o2 while idling and driving ?

Sometimes while driving it comes on but the reading is not stable it just surges back and forth ...

Any ideas why I'm not getting constant power?

My fuel economy seems ok still bout 500 to a tank while granny shifting

Only thing I have noticed is I have a got a slight ping in third but don't think it's the o2 sensor because it shouldn lean it that much correct so apart from that all seems normal apart from the 0 volts it shows on the consult?

Any help welcome :)

Link to comment
https://www.sau.com.au/forums/topic/371263-o2-sensor-not-working-properly/
Share on other sites
mad082 Grand Master

mad082

Posted
Posted

the o2 sensor is only working when at light load, and when it isn't working it should run richer, not leaner, so the ping shouldn't be related to it not working.

as for the o2 reading surging back and forth, that is what it is supposed to do. at light load it should fluctuate.

i'd start by checking the plug and the wiring. sometimes they get damaged if they touch the exhaust and melt a bit. if all the wiring is fine then look at getting a new o2 sensor.

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

    • GTSBoy
      Nissan fuga 450gt android screen

      By GTSBoy · Posted

      So, now all you need to do is connect the 2 or 3x 12v feeds into the unit to permanent 12v, ACC 12V and IGN 12V that you can find in the spot behind the stereo, and the earth, and then it will switch on with the car.
    • The king 2.0
      Nissan fuga 450gt android screen

      By The king 2.0 · Posted

      Yes then it will turn on but I want the car features to work  
    • GTSBoy
      NC MX5

      By GTSBoy · Posted

      My thought is if you were just moving it forward and the upstream geometry remained the same, then no difference at all. But because the current one has the filter direct into the AFM inlet, you effectively have the best chance of a completely symmetric air flow profile upstream, and in, the AFM, whilst the aftermarket inlet thingo has a (small, to be sure) bend between the filter and the AFM. That would bias the flow to the outside of the bend (downstream of the bend) which might well reduce the size of the signal seen by the AFM, for the same total flow rate. Having said that: If you're proposing to make your inlet look like a hybrid of your existing one and the aftermarket one, such that there is no bend where the filter is clamped on... then I say it will be just fine. If there is going to be such a bend, then, if you can align the insertion of the AFM blade such that it is at right angles to the plane of the bend, then there is a better than even chance that the centreline velocity where the blade is will remain more or less the same, and the velocity will just be a little faster to the outside of that, and just a little slower to the inside. **This is not professional investment advice and you should consult a suitably qualified ouija board, tea leaves or the intestines of a goat for more accurate prognostication.
    • pacman_1219
      Blue/grey smoke after idle

      By pacman_1219 · Posted

      Hi Tao, Thanks for your reply.  It's been a while and I managed to get the valve stem seals replaced with the head on the car.  Unfortunately this didn't solve my issue, the car still smokes a lot after idling (to be honest during idle you can see a bit of blue smoke from the exhaust), same after deceleration. I will try disconnecting the valve cover breathers, do I leave the PCV valve in? By engine oil drain pipe, do you mean the turbo oil drain?
    • GTSBoy
      Nissan fuga 450gt android screen

      By GTSBoy · Posted

      What about if you just give it direct 12v and earth?
×
×
  • Create New...