Legnum vr4 stalling misfire

[murat]

Having problem with vr4 leggie
Stalls and misfires when started always stalls
Changed leads,coils went for.about 20mins.then problem came.back again

 

[6A13TT TYPE S]

Has it got an aftermarket venting to atmosphere blow off valve?

 

[murat]

Yes hks BOV
1 yr ago when under little boost would
missfir Very faint can here couple of pops
As time goes on came to a point its not driveable amymore

 

[6A13TT TYPE S]

Try plugging the BOV off as if its leaking it can cause stalling.

 

[murat]

Ok i.ll be doing it today see if its the cause

 

[6A13TT TYPE S]

As well as checking for other vaccum/boost leaks.

 

[murat]

Put another bov on started good for 15sec
Then started to hunt revs go up and down
Blowing black smoke
I.ll remove bov completely block it off
See what happens

 

[murat]

It ended up being the intercooler pipe which blew of the clamp just wasnt enough tight enough
Cant notice it as its behind the h/lights