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Smoke is still there because it hasn't been worked. Drive it like you stole it and it will clear. Yes, the injector, if stuck open, it is a pintle type, so that would be a broken spring issue, will cause "smoke" to come out of the intake because the fuel is still sorta atomizing and when the intake valve opens, the vapor comes back through the open valve.Injector has been replaced. The smoking isn’t nearly as bad but it’s still there at idle and noticeable above idle but not as bad as before. Next I figure compression testing is in order. I am thinking maybe the stuck injector damaged that cylinder.
If it is idling smooth, not rattling more than usual, run it to clear it out. The manifold, pipe and muffler are filled with raw diesel gas.