idle air controller

[g0t $|{i||z?]

gday ppl

i'm just trying to find out some info on this device

what does it do, where is it located, what problems can it cause if

its defective, how much is a replacement.

so if any one else has had problems with it, i'd like to know what they went

thru and expecially what problems it caused.

cheers.

[R33Dan]

Hey mate well that idle air controller, its an AAC valve its located at the back of the plenum there is another thread on this. But basically it senses pressure in the plenum and sends a signal back to your ecu. I had a fault with mine caused it to idle irregular then just idle high (mine was around 1500rpm but have heard of 2000rpm) if you get some wd 40 or carby cleaner etc and spray the **** out of it the problem stops.

[g0t $|{i||z?]

tried that...sorta helped.

its down to 1100 now. mind u, it could be the solenoid on it.

i'll try and get hold of another one and let see how i go.

[g0t $|{i||z?]

done, fini, fixed.

turned out to be the IAC not the AAC.

i took it to a import spare parts dude and he said u sure its the AAC?

"umm...think so"

so i switch the motor on and he blocked the hose going to the IAC and

the idle dropped to around 700. so he gives me a second hand IAC ($55)

neways, i get home, pull the IAC off and it turns out they're different , must

have given me the one off the NICS RB20.

neway, i pulled apart the original (took an impact driver to do it 4 little philips head screws *&en tight) and there's a little spring about 3mm long (a contraction spring) i reconnected it, put the whole

lot back together...

...problem solved. idles around 700 now.

p.s. bit of a pain in the ass job...at least it's done