In what way can my brakes effect idle?

[Milt 92GT]

And just saying hi....I really like this website,looks like someone (heh,me?) could learn alot here...


Anyway,back to the question...

When I come to a stop and sit at idle,the RPMs will dip and then return...over and over,then slowly even out...almost to the point of stalling but not quite..It seems more likely to do the idle problem when the AC is on...I don't know if that could be a connection OR is it because when the AC is on the idle is lower and more easily falls into the idle problem?

Strangely I noticed that when it starts this idle problem,if I push fairly hard on the brake pedal,it immediately evens out???Then if I release the brake pedal it starts dipping again...The car drives great...plenty of power (all through the RPM range,no hesitations,pinging....so I kinda want to rule out a fuel problem BUT,I haven't been able to check the fuel pressure yet.

The car is all stock except for suspension stuff and exhaust...

All fairly new ignition parts,coil,plugs (gapped at 54) ,wires,IAB,TPS (.98),cap and rotor.New O2 sensors,fuel filter...etc...


Codes are as follow..

KOER system pass (11)

KOEO system pass (11)

KOEO memory (code 95)

That memory code is kinda recent because I went ahead and cleared the memory about a week ago.

Cylinder balance test passed as well.

If you have any ideas please,let me know and what and how to check for....

Thanks and I look foward to getting to know you guys ,and I hope you are looking foward to many strange little questions like this in the future from me!

Milt