golf gt tdi 150 2002 less power then wifes gt tdi 130

[madmark]

Golf gt tdi 150 not performing to full capacity turbo whistles at 1600 revs and kicks
in at 2000 revs but not full power rev up to 3000 revs let off power and then put
your foot down there is turbo lag i have done the maf and boost pressure
solenoid valve.
i need help please

[snap-on]

scan it for codes ! does it chuck out loads of black smoke ? if so you have the common tdi boost pipe leak/split

[Wazzzer]

99.9% sure it will be boost leak, the 150 is notorious for blowing pipes off. This may be down to the vanes sticking in the turbo though...

[Rhyso]

Most likely one of the intercooler pipes is hanging half off

The lugs wear down meaning they move about.  Long term solution is to replace the pipes

[madmark]

No fault codes with snap on tester all the pipes look ok

[madmark]

There is no black smoke