Review on Dorman 904 235 Chevrolet Turbocharger Position by Devon Leach

Works great so far. I just installed it without designing (or making a fancy outlet with a slot on the side). Installing it cleared my p2563 code and the truck has been through emissions ever since. Tech2 is NOT required to relearn this sensor, at least not on my 06 LBZ. Once the ECT reaches 104F (40C), with the A/C off and the truck in Park or Neutral, the ECU commands the vane position solenoid to move the vanes. This should lead to a recalibration. I have a Tech2 clone and was able to confirm that the engine learned VPS on this drive cycle, but I didn't need to put the system into a learn mode. An installation note: Be sure to clamp the intake resonator firmly before installation. start, otherwise eject P0299 for under-inflation, for leaks. I made that mistake and the engine went into limp mode. Finally, the actual size of this sensor is 25mm, not 1 inch as others have suggested.