need HELP..engine died instantly

[RVR 4g63t]

i'm having a prob with my RVR ere..
situatuion: rev paddle with presure say about rpm at 2++ boost at 0.2++ then quick realease the paddle, RPM drop & sumtime the engine died instantly..
i've checked the BOV,vacuum hose.. swap with other BOV.. change TB.. result is the same. anyone facin the same thing ere? i notice there's a manifold leak as smoke came out frm one of the boltnut of the manifold...& also the idling kind of fluctuate time to time..fuel consumption damn BAD..

TQ.

 

[BMGTZ]

fuel pressure?

injectors clean?

air filter clean?

spark plugs...age and condition?

Base idle setting screw correctly adjusted?

check all of these and report back....

just a tip making your post as easy to read as possible using correct spelling and grammar will get you more replies. I understand it may be that english isnt your first language and mean no offence in the previous tip

 

[RVR 4g63t]

thanks mate.. will update here soon