The turbowork for a while but when you need it on a hill it lock like if the trotol was wide open and it give a code po234.i have a new turbo and wesgate instal help me please!

Turbo overboost. Erase and go easier on gas pedal. It happens on my '02 t6 from time to time.

Have you checked the PCV system?? If its stuck in the closed position then you will lack power and turbo boost. A vehicle needs 3 things to make it run proper; FUEL,FIRE and AIR. Try that and see if it helps.

check the turbo relief valve for overbost

p0234 is engine over boost condition. According to Volvo P0234 is a turbo control valve. Maybe a wiring issue?
Did you do a hard reset after clearing the code? hope this helps!

hi it coud bi the trotol body posechener senser is milfonton riplas it.

Boost is controlled by the N75 solenoid with vac' hoses to the vane controller built into the turbo.

When light comes on it indicates too much boost and will reduce fuel delivery to reduce power.
A '' key off/key on'' cycle will reset it if you on the road.

When an over boost occurs it is best to first change the N75 Solenoid Valve and or check the hoses from and to it for displacement or splits.

Before removing the valve, make a note of where the hoses fit.

Common component failure.

POSSIBLE CAUSE SHAFT BEARING OF CHARGE PRESSURE REGULATOR VALVE IN TURBOCHARGER BLOCKED.

P0216 - injector timing control circuit

P0234 - turbo / supercharger over boost condition

P0523 - engine oil pressure sensor / switch circuit high inout.

Don't know much about VW but if it's fine, and it doesn't happen again I wouldn't worry about it. If it does try resetting the ECU by removing the battery terminals and touching the positive lead(red wire) to the negative battery post. It might spark a little, this is just the capacitors discharging, resetting your ECU and starting over. It's like restarting your personal computer

can be other things,we see a few that require throttle body changes,it would be easier to get the car plugged in and see what the fault code is,if you let me know i will be able too help...