cars missing after it warms up

[Mohsin butt]

When it cold it's running nicely and when it warms up it starts missing and bov starts blowing aswel...don't know what it is...Help plz

[amatthews45]

Remove bov and blank and see how it runs then. Would check for VAC leaks also could be a split that opens once car warmed up.

Could be the leaky bov or VAC leak making the car miss fire

[mikey4410]

Yeah I think this also.

[Mohsin butt]

Thanks will check that asap

[amatthews45]

You got a boost gauge? The needle should drop down once warmed up if it sits around the same once warm you defo got a vac leak causing it to run rough