Jump to content
SAU Community

Recommended Posts

Thats the problem.

It stays rich with it on or off, it does not make a difference.

As far as i can tell o2(1) is ok

I would just like to know if o2(2) is supposed to cycle as well or remain constant.

Thanks.

Ah... sorry i misunderstood. No they are both supposed to change. You definatly have a dead 2nd o2 sensor.

Some widebands setups output a simulated narrowband output too. You might be able to wire that to the ecu instead of replacing your dead sensor.

Link to comment
https://www.sau.com.au/forums/topic/272627-rb26-afr/page/2/#findComment-4637141
Share on other sites

I use the AEM uego wideband which i think has the output but i'm using the stock ecu. I only hooked up the pfc to read the O2 voltages (borrowed from a friend).

One other thing i noticed was when i gave it a quick rev to 2000rpm the air flow voltages will go up to about the same amount but AF2 will drop off before AF1, and will go to about 0.2v and then climb back to meet AF2 at about 0.9v where two of them remain steady.

The two air flows are clean and i am using the stock air box at the moment.

Could some one else give me their opinion on the O2(2) sensor remaining constant? And which one the pfc takes as the O2(2) sensor the front or the back?

Thanks again.

Link to comment
https://www.sau.com.au/forums/topic/272627-rb26-afr/page/2/#findComment-4637830
Share on other sites

Yea already have that info. thanks anyways.

I also noticed from the manual the front o2 sensor suppose to cycle between 0-1v and the rear in P or N range 0v and other than P or N range 4-5v

So i guess i should be looking for a voltage fluctuation between 4-5v ????

Link to comment
https://www.sau.com.au/forums/topic/272627-rb26-afr/page/2/#findComment-4639879
Share on other sites

Well changed th o2 sensor today using a rb25det sensor, it was a direct plug in for the rear sensor on r33 rb26 just the wire on the sensor is shorter so i had to reroute the harness...no biggie though.

Anyway my ratios now look as they should- Idle at 14.7-15.3 an when i hold it at 2000rpm it cycles between 14.7- 15.7

So i guess i would be looking forward to some improved fuel economy :D

Thanks for all the help guys

Link to comment
https://www.sau.com.au/forums/topic/272627-rb26-afr/page/2/#findComment-4641283
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


  • Similar Content

  • Latest Posts

    • Checked with amayama and nope, the full S2 manual set is not available anymore. Unsurprising, but still disappointing as the ? on availability gave a glimmer of hope.
    • I've heard the Tomei USA head gaskets are decent if you want to o-ring the heads but otherwise not recommended.
    • The 296mm rotors are the R33 turbo brakes. The 310mm rotors are the R34 turbo brakes. The calipers are nearly the same, but not. They're the same caliper but the R34 caliper has longer legs so that it sits out far enough to go over the rotor. The pads are the same for both. When you say, "I bough tsome EBC"....did you just mean pads? Or rotors? 310mm rotors fit under 17" wheels. There may be some wheels without enough clearance though. I can't fit my fingers between the barrel of my wheel and the "corners" of my R34 calipers, but there is plenty of room behind the spokes. This is on Enkei RPF1. You can fit 324mm rotors inside a 17" wheel, but I'd be willing to bet that it would be close to impossible with the Nissan/Sumitomo caliper (using an adapter, of course), because the Sumitomo caliper is fatter than the Brembo caliper that is supposed to go on the 324mm rotors.
    • Hi. Can someone tell me what brakes(and mainly WHERE) can i buy brakes on R34 GTT? I bought some EBC which SHOULD go on my car(i have GT but it has GTT brakes) but it does not fit, Brakes are "too" small(296mm) Are 310mm be good or? I have 17 inch wheel so no "big boys" but for me driving i just need one that fits and i can get here in EU/Czech.
    • Since winter isn't that harsh anymore in Poland, i will definetely drive it 365 days a year 😉. But if the snow hits i will try it for sure and let U know. Only swap i am planning to do is of course R34 GTR front 😍.
×
×
  • Create New...