Hi I have a 308 xt 1.6 one with turbo. The depolision fault keep coming on. The turbo was replaced, the catelist converters where replaced and the waste valve was already replaced 3 times. Bud still the warning keep coming on and then the car has like no power. The rpm if you go higher than 2000 the car feel like its stolling. And the turbo dont kick in at all. Can you bypass the waste valve and see if it is the problem?