Power Fc "function Select" Question

[1000AWHP]

On the Power FC under the function select section, what is this option for? should it be on or off? Thanks!

O2 Sensor Reg.

Edited December 1, 2011 by 1000AWHP

[The Mafia]

I havent seen this one before? What model of powerfc do you have?

[1000AWHP]

I am not sure which model but it is for r32/r33 rb26dett.

[R31Nismoid]

Well do you have O2 sensors?

If yes - on.

If not - off.

Pretty straight forward

That said you do not need to have them, my tune doesn't utilise them. Previous setup/tune I was getting 700kms to a tank on FWY. Now only around 450kms so obviously the tune needs more attention without using O2 sensors.

Also to note, if you find your idle is a bit up/down it can be O2 sensor(s) failing. Turning them off is a quick way to confirm/deny they are the issue as if you turn them to OFF an idle stabilises - you know they are failing/dead.

[wolverine]

^^ not talking O2 F/B control in this case.

[R31Nismoid]

Oh really? (on phone, didnt load the pic haha)

[1000AWHP]

Im pretty confused about the "O2 Sensor Reg." option. I have asked around no one seems to know what it is exactly for or if it should be on or off.

I am not running O2 sensors so the O2 F/B control is off.

Any input would be of help.

Thanks

[Hanaldo]

I'd say if anyone here will know, it will be Paul...

[Duncan]

It allows you to select between the 32 and 33 type o2 sensors. I don't know which squiggle yours is set to, but if you go to sensor check and both o2 sensors flick around 0.5v average at idle, you have it set right.

If they don't average 0.5v at idle, one or both sensors are dead, or you have it set the wrong way

[Duncan]

BTW if o2 sensors are off (and I think you said they are), the setting will make no difference

[1000AWHP]

Thanks everyone for your input. Thanks Duncan for the answer.

you are correct my O2 sensors are in the OFF setting.

My friend's power fc did not have this option. I think I may have an older model. Which models had this option?

[Don Dada]

Yea... this is choose between r32 and r33 gtr as they use different type O2 sensors.

Not sure but the older pfc probably didnt have the option due to the fact that r33 wasnt even built at the time, but the newer pfc definitely has it.

This needs to be on for R32 and off(+ sign) for R33 gtr

But as mentioned before if you have O2 F/B control off, it should not make a difference