Hey Will,


Try taking a look at the plumbing between the compressor of the turbo and the throttle body. I think you have a vacuum/pressure leak. The injector seals could be suspect by now if they haven't already been changed. A small intermittent air leak will cause the a/f mix to go way rich for split second, just long enough to cause a misfire. Intake manifold gasket may be another place to look. Since the O2 sensor voltage moves around fast, its most likely fine.



Regards, Jon