I just replaced my actuator 2 weeks ago because of the p003a code and no exhaust brake.
I calibrated the new actuator with Alfaobd and the codes went away and I found I could build boost faster/ more efficiently.
I also rebuilt the turbo with Turbolab America rebuild kit.
This smoking issue has happened before I even got the codes for the actuator it just seems like it's getting worse now.
It could very well be an injector, however it's odd how it waits for about 1 minute before it starts acting up.
It won't always run rough either, some times it starts and runs fine with no smoke.
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