yeh man i get the same problem. start my car in the morning and if i dont give the accelerator a bit of a tap, it won't start up properly.
I also had a problem with my AFM, car would just shut off while i was driving.
If you think its the AFM, do a check through the ECU, search the ECU codes on the forum.
I got mine re-soldered and i haven't had any problems with the AFM since.