Help a euro tech out with one of these junk cars! Ok heres the backstory. Wednesday, of course, 2:30 pm, my landlord at the shop drops his car off. "Do what you can, I really need it for the weekend" Right. Running very poorly and knocking. All that shows up in the scanner is P0300 for random cylinder misfire. When I watch the misfire counter, its skyrocketing on cylinder 2,5, and 7, with a smaller amount of misfires on 1 and 3 showing maybe 5 after a few minutes of watching. The car has a very long crank, but will catch and idle poorly. I moved the plugs to difffernt cylinders, and the coils to different cylinder than the plugs to chase it, but the misfires stay on mostly 2 5 and 7. It sunds like a sort of chugging noise through the intake. Ive seen tons of TSB on carbon buildup on the valve stems, but Im not sure if those symptoms match up to what the bulletin says. Anybody who sees these regularly see anything similar? Thanks