[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re:was resistor in the O2 loop now AFM flap shennanigans



John Bolhuis <bolhuijo@domain.elided> wrote:

>  I don't think these flap shenanigans will get you any benefit. When
> the motor runs in closed loop mode, it watches the O2 sensor for the
> results of the inputs.  If the AFM were to change its behaviour, the
> ECU would merely adjust in a short while and you'd be back to normal,
> mixture-wise.

This is what I expect also, but I'm far from an expert on this
stuff.  I would think that fooling the computer with a "modified"
O2 sensor reading could work, though.

>  As for full throttle operation when the O2 sensor is ignored by the
> ECU, the AFM flap is fully open above 3000 RPM or so.  Adjusting the
> flap spring pressure a little will do nothing for you in the "fun
> zone" of RPMs and throttle.

I don't deny that this could be true.  However, if it is, how,
then does the computer know how much fuel to squirt at WOT/high
rpm?

Regards,
Mike Kohlbrenner

------------------------------