Quote:
Originally Posted by sailor15015
I don't know much about your model year but if the computer is holding the wastegate open, you won't get any boost and there won't be enough air to burn the supplied fuel, resulting in black smoke. A stuck open wastegate shouldn't cause stalling though, just a lack of power.
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Yeah, but the ALDA keeps the fuel down when there isn't any boost. If the wastegate was open, the ALDA wouldn't get any pressure, so it wouldn't enrich the fuel to the point of black smoke. That is if the ALDA is unmolested, working and installed properly.
Make sure your EGR and flapper valve on the intake are both working and not stuck open or closed. Also check the two transducers that control these just behind the airbox. If you need to test them, there are three on this car and they're all the same part number and are interchangeable. This is how I pinned down a bad turbo wastegate transducer; I replaced it with the flapper valve one which was known to work.
You're also absolutely sure your intake isn't gunked up with that evil mix of EGR soot and oil from the breather?