strange boost problem

[jay1601]

having a weird boost pattern with my car. it doesn't always do it.

for the past couple of days when you put your foot down it will only boost to 5PSI (bit like limp mode) but then the boost will increase to 13+PSI after a couple of seconds.

i have 0 fault codes coming up. vac is reading -20 (when warm)

anyone got any idea's ?

 

[Customboy]

Sure your dv is ok and not sticking?

 

[Customboy]

Double check you have no leaks mate or loose connections anywhere?

 

[jay1601]

DV was serviced a couple of weeks ago.

i can't find any loose connection or pipes