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Variable geometry (VNT) repair and setup

Variable geometry (VNT) repair and setup

We clean, restore and set up the variable geometry mechanism to factory specs.

Price
Price — after diagnostics
Turnaround
We will give you the exact turnaround after diagnostics

What's included

  • Disassembly of the variable geometry (nozzle ring) mechanism
  • Carbon removal and restoring free movement of the vanes
  • Replacing worn parts of the mechanism
  • Setting the geometry to factory specs
  • Checking operation together with the actuator

When you need it

  • Underboost or overboost codes (P0299, P0234)
  • The car is sluggish at low revs or hesitates under acceleration
  • The engine goes into limp mode
  • The geometry is carboned up or stuck

Variable geometry lets a turbo deliver boost at both low and high revs. Carbon build-up and incorrect setup are common causes of boost errors. How it works — see What is turbo variable geometry.

Send a request

Tell us your car or turbo part number — we will call you back with a price.