After fitting a HKS bov which the car didn't Iike, I put the bailey dv back on, now the car is hesitant after 2000rpm, also bailey dv and the induction a blowing at the same which has never happened before.. Induction kit was sucking in air then dv releasing...
Checked MAF seems fine, however one of the ht leads is quite loose doesn't seem to hold,

Any ideas?

 

sounds like the valve might be leaking a bit - check the vac line running from it to make sure its connected at both ends.

 

Checked all the pipes mate, also sprayed soapy water on pipes no leaks visible