bmw 325i coupe idle problem

[turney918]

hey guys wonder if u can help.
my bmw has started idleing strange it gose up and down and cutting out when warm.
and when i press the accelerate peddle it spluters and want to cut out unless i go full throttle.
could this be my throtle positon senseor.?

[davidaln9]

Sounds like a prob a few people have had in here ... a crack in the air inlet system have a good look at all the rubber and plastic pipeing