Re: Fuel Mixture/idling speed

["Lino M. Valadas" <valadasl@osha.igs.net>]

Steve said:

> The adjustment screw has a 3mm hex head, and you are not supposed to play

> with the screw while the engine is running.  If you think about it this 
> adjustment is only used to provide a useful range to the computer, which 
> uses the O2 sensor signal and a feedback control signal (depending upon
the 
> version of the FI) to fine tune the mixture for minimum emissions.  
> 
> If you are seeing your fuel economy going down I'd look at replacing the
O2 
> sensor first, rather than messing up the mixture adjustment.  Bentley
talks 
> about all of this stuff, so you might want to use your Haynes to get that

> Thanksgiving fire going and check out what Bentley has ...
> 

Dave and Fred also responded similarly.

Thanks guys. It was the idling screw and not the air mixture screw I was
referring to.  Haynes implies they go hand in hand and even shows a picture
of the idling screw plugged up.

I will get the o-ring today, and I'm also shopping for an O2 sensor.  And
yes Bentley for Xmas sounds like a great idea.

Thanks

Lino