Corsa 1.3cdti exhaust sucking air intake blowing air!!!!

Hi guys an gals newbie here and yep you guessed it my reason for becoming a member was initiated by the fact I really need some help I'm afraid sorry if that feels like I'm using anyone it's not intended to be that way i do have limited knowledge and experience that I'm interested in sharing where possible and i say limited because well because I'm not an expert by all means..

My problem is that I have a corsa 1.3cdti and strangely after being sat for quite a long time 7months due to badly...

Corsa 1.3cdti exhaust sucking air intake blowing air!!!!