Wastegate Spring

[b0bt180]

All springs weeken on age and Im concerned that if the wastegate spring has weekend as much as my suspension springs over the last 8 nyears then I am looseing turbo boost power and performance.

Q1 Can anyone tell me the original turbo boost psi on a 2006 avensis t180

Q2 are new and or 10%uprated wastegate springs available

Q3 is a new wastegate required and again is an upgrade available

[JackTech]

It has a variable geometry turbo so no wastegate.

[b0bt180]

Thanks. It apears to have a vacum/ preasure (vgt solenoid?) with an actuator bar leading to the turbo itself, which I was assumeing was the wastegate. Can the turbo boost be increased on this type of engine ie adjusting the actuator rod, bleed valve etc?