Very bad idle! Help!

[Marcus]

My engine is started to idel very bad...

Everytime I start it, revs starts go from 600rpm to 1200rpm again again and again.
Everytime I put cluch down when I'm driving it almost stalls and starts to "wave" rpms again!

There should not be any boost leaks because I just "pressurised" (tested) pipesystem and it didn't leak from anywhere. Also my engine is just remapped.

I have also tried to raise idle-rpms a little but it won't help. Waving happens then in higher rpms.

I don't know what to do next?

Next weekend I'm going to change oils and other lubricants so I will clean my MAF-sensor too, could it be it?

 

[subzero]

ive the same prob , exact same symptoms , read throguh this thread but still in the same prediciment ...

http://forum.s15oc.com/showthread.p...trol-valve.a-lil-help-plz-)&p=79148#post79148

when i hold the accelerator steady i can hold the revs with no lumps, release and it starts again ...

start plugging the coil packs one by one , each seemed to affect the engine in the same manner, i thought one may be breaking down ...

any 1 any ideas for me and marcus here

 

[tooley]

Bad idles are often caused by boost leaks, Bad coil packs, or dirty AFM. If you have already tesded for leakes then try the coil pack approcach.

 

[Marcus]

Bad idles are often caused by boost leaks, Bad coil packs, or dirty AFM. If you have already tesded for leakes then try the coil pack approcach.

I have checked my coil packs already (and my coil packs are uprated about month ago to VAG-coil packs). Nothing wrong with them.
Going to clean AFM and change lubricants and oils and clean airfilter, let see if its has any help!

 

[subzero]

AAC = Idle control valve ???