Air mass sensor?

[KWK MX3]

Hi thanks for opening this page!<P>I have a KLO3 2.5, i love it but i have a few little problems.<P>1. Engine runs like a tank when cold and soulds like a V8 top feul dragster until it warms up, then engine runs fine.<P>2. Experiencing some power "wowing" when the pedal is floored at low levs. Car rocks back and forth ever so slightly.<P>3. Rpms dropping below last tick and sometimes stalling when i release the gas and rpms drop. Happens in or out of gear so dont say its the clutch. After (if) rpms stabilize then they go up and idle at 600 rpms.<P>I was told it was the air mass sensor. Is it?<BR>I want a good opinion before i take it back to A-Spec for service. Otherwise the car is a ball to drive.

[93mxrgs]

i'd say its ur vaf, did u get a new one, when u did ur swap