I did search for this, but I am trying to set my rich-lean screw on the intake plentum. I have heard of people talking of setting it, but do I need an A/F ratio gague to measure it, or what is the deal with it. Just trying to figure it out right about now, being that I am looking for ANY way around taking out the injectors until winter to have them cleaned, just so I get better then 10mpg on my N/A.

I belive that the s4's have this screw on the intake plentum also, except it is on the back, so I belive that it is the same deal.

 

There is no such thing.


-Ted

 

Pretty easy, so long as you haven't touched the TB throttle stop screw.

Warm up your car. Shut the car off. Some people say you need to ground the ISC-- this is so the car does not compensate with the BAC, and it also tells the ECU you are resetting the "base" idle. Start the car.

Adjust the screw until you get 850rpm idle.

Done. Remove ISC

If you have any (not small) intake mods (ported, ect) you shouldn't be expecting a 850 idle, but somethign around a 1000.


EDIT:

BWHAHAHA, lol crap, you're right! Me and my S5s way! Nothign gets past you Ted. I guess im not quite as observant!