my s2 when i start it up for the 1st time of the day. my car is hard to start and runs lumpy when i rev her up as if she aint running on all cylinders. if i hold it at 3k it sorts it self out. i then drive it when i come on boost normally in 3rd gear it will hold back and sound like a scooby

sometimes it will backfire quit loud and pop and bang like ALS

. once its done that its fine for the rest of the day. but it does this everyday.
any ideas?
cheeRS
Rob