Mk5 golf gti not boosting.

[G4VOE]

Techinical help!

Mk5 gti not boosting. It was left sat for a week or so when returned there was no power.

No engine codes only got codes for

lateral acceleration sensor incorrect basic setting

Brake pressure sensor incorrect basic setting

steering angle sensor incorrect basic setting.

I ran a vagcom log which shows when i drive the specified boost and actual boost pretty close which i would of thought indicates the turbo isnt gone also have fitted a new dv. I can push the wastegate actuator rod in and it springs back but it quite stiff. The turbo sounds to be spooling and you can see the actuator rod moving in and out.

The intercooler hose on the drivers side coming from the intercooler to metal pipe seems very soft and i believe its slightly sucking in under load is that a possible culprit.

Any other ideas i can have a look at?

Thanks

[Vw nut]

Hi bud could be a couple of things I would get the system boost checked to check for leakes also could be the boost valve

[G4VOE]

Thank you fornyour reply when i rev it in neutral you can hear the turbo spooling up and releasing the pressure so maybe a leak or pressure valve is something to look at i did look over all the hoses and couldnt find anything obvious

[Vw nut]

I have a 1.8t MK4 boost tested it and it was a tiny slit in the intake hose