Update on my issue, still can't track down the problem. So far here's what i've had happen:
Oil leak near turbo/Cylinder misfire #4. Bad turbo/ compression test nil.
Found bad/burned valve, replaced bad valve cylinder #4, replaced turbo
6 months later now getting cylinder #3 misfire. Copmression good, plugs good, coil packs good. Replaced #3 injector with used injector. Still getting cylinder #3 misfire
The misfire ONLY happens after gas tank is filled. I was thinking the fuel filter may be the culprit, but wouldn't that make the whole fuel system dirty?
Any thoughts?