Hi, I had to change my turbocharger, as the 9 years old original one was completely seized (loud whinning, boost coming brutally when the vanes unlocked, but still insufficient, leading to a lot of smoke and soot covering the Veccy's back, VNT vanes control arm impossible to move by hand, still wondering how the vacuum actuator managed to move it)...
I also bought a repair kit and I'll try to dismantle the old beast and offer it a new life (may be necessary to have one spare in another 9 years, who knows ? )
But my question is about fine-tuning the vanes arm and the current boost behaviour.
Well, I still have the boost coming after a strong acceleration, so it's a bit less progressive than before. It's ok after that and I do have the wanted power, the car never smokes at it did with the old turbo, and I don't have any fault signal popping, but I do have much more lag from idle, now.
I'm actually suspecting the catalyser to be completely clogged with soot after having been driving with a dead turbo for almost 2 months (necessary time to diagnose the problem, find the correct model, order one, and wait for it to cross the oceans), and I'll remove it soon.
But if it finaly appears that removing the catalyser won't resolve the problem, what do you think I could do then to get boost pressure coming sooner ?
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